diff --git a/backend/maint-scripts/update_title_flavours_from_books.py b/backend/maint-scripts/update_title_flavours_from_books.py
new file mode 100755
index 0000000..2e8afa9
--- /dev/null
+++ b/backend/maint-scripts/update_title_flavours_from_books.py
@@ -0,0 +1,89 @@
+#!/usr/bin/env python3
+# ruff: noqa: T201
+"""This script sets the title flavours from the set of all books belonging to the title.
+
+It also fixes books whose flavours start with an underscore.
+"""
+
+from typing import Any
+
+from sqlalchemy import select
+from sqlalchemy.orm import Session as OrmSession
+
+from cms_backend import logger
+from cms_backend.db import Session
+from cms_backend.db.models import Book, Title
+from cms_backend.db.title import get_title_by_id
+
+
+def update_title_flavour(session: OrmSession, title: Title) -> tuple[bool, str]:
+    if title.archived:
+        logger.info(f"Skipping archived title {title.id} ({title.name})")
+        return (False, "Title is archived")
+
+    books = session.scalars(
+        select(Book)
+        .join(Title, Book.title_id == Title.id)
+        .distinct()
+        .order_by(Book.flavour)
+        .where(Book.flavour.isnot(None), Book.title_id == title.id)
+    ).all()
+    for book in books:
+        if book.flavour and book.flavour.startswith("_"):
+            new_flavour = book.flavour[1:]
+            logger.info(
+                f"Updated book {book.name} from {book.flavour} to {new_flavour}"
+            )
+            book.flavour = new_flavour
+            session.add(book)
+
+    flavours = [book.flavour for book in books if book.flavour is not None]
+    title.flavours = []
+
+    if not flavours:
+        logger.info(
+            f"No flavours found in books belonging to title {title.id} ({title.name})"
+        )
+        return (
+            False,
+            f"No flavours found in books belonging to title {title.id} ({title.name})",
+        )
+
+    logger.info(f"✓ Updated title {title.id} ({title.name}) flavours to {flavours}")
+    return (True, "")
+
+
+def main():
+
+    with Session.begin() as session:
+        title_ids = session.scalars(select(Title.id)).all()
+        logger.info(f"Found {len(title_ids)} titles to process")
+        nb_titles_updated = 0
+        nb_titles_skipped = 0
+        reasons: list[dict[str, Any]] = []
+
+        for title_id in title_ids:
+            title = get_title_by_id(session, title_id=title_id)
+            processed, reason = update_title_flavour(session, title)
+            if processed:
+                nb_titles_updated += 1
+            else:
+                nb_titles_skipped += 1
+                reasons.append({title.name: reason})
+
+        logger.info(
+            f"Updated {nb_titles_updated} title(s) metadata, skipped "
+            f"{nb_titles_skipped} titles(s)"
+        )
+
+        if reasons:
+            print("\nSkipped titles summary:")
+            print("| Title Name | Reason |")
+            print("|------------|--------|")
+            for entry in reasons:
+                for title_name, reason in entry.items():
+                    print(f"| {title_name} | {reason} |")
+
+
+if __name__ == "__main__":
+    main()
diff --git a/backend/src/cms_backend/api/main.py b/backend/src/cms_backend/api/main.py
index 6ee91c1..48c5983 100644
--- a/backend/src/cms_backend/api/main.py
+++ b/backend/src/cms_backend/api/main.py
@@ -105,6 +105,14 @@ async def request_validation_error_handler(_, exc: RequestValidationError):
     )
 
 
+@app.exception_handler(ValueError)
+async def value_error_handler(_, exc: ValueError):
+    return JSONResponse(
+        status_code=HTTPStatus.BAD_REQUEST,
+        content={"success": False, "message": exc.args[0]},
+    )
+
+
 @app.exception_handler(ValidationError)
 async def validation_error_handler(_, exc: ValidationError):
     # transform the pydantic validation errors to a dictionary mapping
diff --git a/backend/src/cms_backend/api/routes/titles.py b/backend/src/cms_backend/api/routes/titles.py
index 4ce18f4..8761918 100644
--- a/backend/src/cms_backend/api/routes/titles.py
+++ b/backend/src/cms_backend/api/routes/titles.py
@@ -66,6 +66,7 @@ class BaseTitleCreateUpdateSchema(BaseModel):
     publisher: NotEmptyString | None = None
     language: NotEmptyString | None = None
     illustration_48x48_at_1: Base64Str | None = None
+    flavours: list[str] | None = None
 
     @model_validator(mode="after")
     def validate_unique_collection_titles(self) -> Self:
@@ -158,6 +159,7 @@ def create_title(
         source=title_data.source,
         long_description=title_data.long_description,
         description=title_data.description,
+        flavours=title_data.flavours,
     )
     return create_title_light_schema(title)
 
@@ -188,6 +190,7 @@ def update_title(
         license_=title_data.license,
         relation=title_data.relation,
         source=title_data.source,
+        flavours=title_data.flavours,
     )
     return create_title_light_schema(title)
 
diff --git a/backend/src/cms_backend/db/book.py b/backend/src/cms_backend/db/book.py
index 4d169be..e0f6a16 100644
--- a/backend/src/cms_backend/db/book.py
+++ b/backend/src/cms_backend/db/book.py
@@ -100,6 +100,9 @@ def create_book_full_schema(book: Book) -> BookFullSchema:
         current_locations=current_locations,
         target_locations=target_locations,
         title_archived=book.title.archived if book.title else False,
+        has_flavour_mismatch=book.flavour not in book.title.flavours
+        if book.title
+        else False,
     )
 
 
@@ -251,6 +254,12 @@ def move_book(
     if not book.title:
         raise ValueError(f"Book {book_id} has no associated title.")
 
+    if destination == "prod" and book.flavour not in book.title.flavours:
+        raise ValueError(
+            f"Book flavour '{book.flavour}' is not in title expected flavours "
+            f"{book.title.flavours}"
+        )
+
     existing_filename = current_location.filename
 
     goes_to_staging = destination == "staging"
diff --git a/backend/src/cms_backend/db/books.py b/backend/src/cms_backend/db/books.py
index c2e766e..0e21e9b 100644
--- a/backend/src/cms_backend/db/books.py
+++ b/backend/src/cms_backend/db/books.py
@@ -46,13 +46,8 @@ def get_books(
         Book.date,
         Book.flavour,
         Book.issues,
-    ).order_by(
-        Book.has_error.desc(),
-        Book.location_kind,
-        Book.needs_file_operation.desc(),
-        Book.created_at.desc(),
-        Book.id,
-    )
+        Title.flavours,
+    ).join(Title, Book.title_id == Title.id, isouter=True)
 
     if book_id is not None:
         stmt = stmt.where(Book.id.cast(String).ilike(f"%{book_id}%"))
@@ -124,6 +119,9 @@ def get_books(
                 date=date,
                 flavour=flavour,
                 issues=book_issues,
+                has_flavour_mismatch=flavour not in title_flavours
+                if title_flavours is not None
+                else False,
             )
             for (
                 book_id_result,
@@ -138,6 +136,7 @@ def get_books(
                 date,
                 flavour,
                 book_issues,
+                title_flavours,
             ) in session.execute(
                 stmt.offset(skip)
                 .limit(limit)
@@ -146,6 +145,7 @@ def get_books(
                     Book.location_kind,
                     Book.needs_file_operation,
                     Book.created_at.desc(),
+                    Book.id,
                 )
             ).all()
         ],
@@ -327,7 +327,7 @@ def get_book_languages(session: OrmSession) -> BookLanguagesSchema:
 
 
 def get_book_flavours(session: OrmSession) -> ListResult[str]:
-    """Get a list of book falavours"""
+    """Get a list of book flavours"""
     stmt = (
         select(Book.flavour)
         .distinct()
diff --git a/backend/src/cms_backend/db/models.py b/backend/src/cms_backend/db/models.py
index 2f24f85..f3c1f21 100644
--- a/backend/src/cms_backend/db/models.py
+++ b/backend/src/cms_backend/db/models.py
@@ -213,6 +213,9 @@ class Title(Base):
     maturity: Mapped[str] = mapped_column(init=False, index=True, default="unstable")
     events: Mapped[list[str]] = mapped_column(init=False, default_factory=list)
     archived: Mapped[bool] = mapped_column(default=False, server_default=false())
+    flavours: Mapped[list[str]] = mapped_column(
+        default_factory=list, server_default="{}"
+    )
 
     books: Mapped[list["Book"]] = relationship(
         back_populates="title",
diff --git a/backend/src/cms_backend/db/title.py b/backend/src/cms_backend/db/title.py
index c9cf060..4161800 100644
--- a/backend/src/cms_backend/db/title.py
+++ b/backend/src/cms_backend/db/title.py
@@ -50,6 +50,7 @@ def create_title_full_schema(title: Title) -> TitleFullSchema:
         license=title.license,
         relation=title.relation,
         source=title.source,
+        flavours=title.flavours,
         books=[
             BookLightSchema(
                 id=book.id,
@@ -64,6 +65,7 @@ def create_title_full_schema(title: Title) -> TitleFullSchema:
                 date=book.date,
                 flavour=book.flavour,
                 issues=book.issues,
+                has_flavour_mismatch=book.flavour not in title.flavours,
             )
             for book in sorted(
                 title.books,
@@ -107,6 +109,7 @@ def create_title_light_schema(title: Title) -> TitleLightSchema:
         license=title.license,
         relation=title.relation,
         source=title.source,
+        flavours=title.flavours,
     )
 
 
@@ -183,6 +186,7 @@ def get_titles(
             Title.license.label("title_license"),
             Title.relation.label("title_relation"),
             Title.source.label("title_source"),
+            Title.flavours.label("title_flavours"),
         )
         .join(CollectionTitle, CollectionTitle.title_id == Title.id, isouter=True)
         .join(Collection, CollectionTitle.collection_id == Collection.id, isouter=True)
@@ -226,6 +230,7 @@ def get_titles(
                 license=title_license,
                 relation=title_relation,
                 source=title_source,
+                flavours=title_flavours,
             )
             for (
                 title_id,
@@ -242,6 +247,7 @@ def get_titles(
                 title_license,
                 title_relation,
                 title_source,
+                title_flavours,
             ) in session.execute(stmt.offset(skip).limit(limit)).all()
         ],
     )
@@ -263,6 +269,7 @@ def create_title(
     license_: str | None = None,
     relation: str | None = None,
     source: str | None = None,
+    flavours: list[str] | None = None,
 ) -> Title:
     """Create a new title"""
 
@@ -281,6 +288,7 @@ def create_title(
     title.source = source
     title.description = description
     title.long_description = long_description
+    title.flavours = [] if flavours is None else flavours
     title.events.append(f"{getnow()}: title created")
 
     session.add(title)
@@ -332,6 +340,7 @@ def update_title(
     license_: str | None = None,
     relation: str | None = None,
     source: str | None = None,
+    flavours: list[str] | None = None,
 ) -> Title:
     """Update a title's details
 
@@ -428,6 +437,9 @@ def update_title(
         title.source = source
         title.events.append(f"{getnow()}: source updated from {old_source} to {source}")
 
+    if flavours is not None:
+        title.flavours = flavours
+
     name_changed: bool = False
     # Update name if provided
     if name and name != title.name:
diff --git a/backend/src/cms_backend/migrations/versions/9dc25bcae26f_add_flavours_to_title.py b/backend/src/cms_backend/migrations/versions/9dc25bcae26f_add_flavours_to_title.py
new file mode 100644
index 0000000..9c1f946
--- /dev/null
+++ b/backend/src/cms_backend/migrations/versions/9dc25bcae26f_add_flavours_to_title.py
@@ -0,0 +1,37 @@
+"""add flavours to title
+
+Revision ID: 9dc25bcae26f
+Revises: a8f64135b053
+Create Date: 2026-05-26 12:24:41.086893
+
+"""
+
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy.dialects import postgresql
+
+# revision identifiers, used by Alembic.
+revision = "9dc25bcae26f"
+down_revision = "e70e0c595eb9"
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.add_column(
+        "title",
+        sa.Column(
+            "flavours",
+            postgresql.ARRAY(sa.String()),
+            server_default="{}",
+            nullable=False,
+        ),
+    )
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_column("title", "flavours")
+    # ### end Alembic commands ###
diff --git a/backend/src/cms_backend/mill/processors/title.py b/backend/src/cms_backend/mill/processors/title.py
index f207e0d..3a91782 100644
--- a/backend/src/cms_backend/mill/processors/title.py
+++ b/backend/src/cms_backend/mill/processors/title.py
@@ -55,21 +55,29 @@ def add_book_to_title(session: OrmSession, book: Book, title: Title):
             title.relation = book.zim_metadata.get("Relation")
             title.source = book.zim_metadata.get("Source")
 
+        issues: list[str] = []
+
         different_metadata_keys = get_differing_metadata_keys(book)
         if different_metadata_keys:
-            book.issues = ["metadata mismatch"]
+            issues.append("metadata mismatch")
             book.events.append(
                 f"{getnow()}: book metadata is different from title metadata: "
                 f"{','.join(different_metadata_keys)}"
             )
 
+        if title.flavours and book.flavour not in title.flavours:
+            issues.append("flavour mismatch")
+            book.events.append(
+                f"{getnow()}: book flavour is not in list of title flavours"
+            )
+
+        book.issues = issues
+
         # Determine if this book goes to staging or prod based on
         # - title maturity: For now, only 'stable' maturity move straight to prod,
         # other maturity moves through staging first
-        # - if book has different metadata from title
-        goes_to_staging = (
-            title.maturity != "stable" or len(different_metadata_keys) != 0
-        )
+        # - issues: books with any issues move to staging regardless of maturity
+        goes_to_staging = title.maturity != "stable" or len(issues) != 0
 
         target_locations = (
             [
diff --git a/backend/src/cms_backend/schemas/orms.py b/backend/src/cms_backend/schemas/orms.py
index 5b45a4e..b41577f 100644
--- a/backend/src/cms_backend/schemas/orms.py
+++ b/backend/src/cms_backend/schemas/orms.py
@@ -33,6 +33,7 @@ class TitleLightSchema(BaseModel):
     license: str | None
     relation: str | None
     source: str | None
+    flavours: list[str]
 
 
 class BaseTitleCollectionSchema(BaseModel):
@@ -116,6 +117,7 @@ class BookLightSchema(BaseModel):
     date: str | None
     flavour: str | None
     issues: list[str]
+    has_flavour_mismatch: bool
 
 
 class BookFullSchema(BookLightSchema):
diff --git a/backend/tests/api/routes/test_titles.py b/backend/tests/api/routes/test_titles.py
index ce34f6b..2f6a148 100644
--- a/backend/tests/api/routes/test_titles.py
+++ b/backend/tests/api/routes/test_titles.py
@@ -58,6 +58,7 @@ def test_get_titles(
         "relation",
         "source",
         "license",
+        "flavours",
     }
     assert data["items"][0]["name"] == "wikipedia_fr_all"
 
@@ -326,6 +327,7 @@ def test_get_title_by_id(
         "relation",
         "source",
         "license",
+        "flavours",
     }
 
     # Verify field values
@@ -379,6 +381,7 @@ def test_get_title_by_id_with_books(
         "flavour",
         "deletion_date",
         "issues",
+        "has_flavour_mismatch",
     }
     assert data["books"][0]["title_id"] == str(title.id)
     assert data["books"][1]["title_id"] == str(title.id)
diff --git a/backend/tests/conftest.py b/backend/tests/conftest.py
index 094704b..e706069 100644
--- a/backend/tests/conftest.py
+++ b/backend/tests/conftest.py
@@ -167,6 +167,7 @@ def _create_title(
         license: str | None = None,  # noqa: A002
         relation: str | None = None,
         source: str | None = None,
+        flavours: list[str] | None = None,
     ) -> Title:
         db_title = Title(
             name=name,
@@ -181,6 +182,7 @@ def _create_title(
             license=license,
             relation=relation,
             source=source,
+            flavours=flavours if flavours is not None else [],
         )
         dbsession.add(db_title)
         dbsession.flush()
diff --git a/backend/tests/db/test_books.py b/backend/tests/db/test_books.py
index ba2dc52..570765d 100644
--- a/backend/tests/db/test_books.py
+++ b/backend/tests/db/test_books.py
@@ -633,11 +633,11 @@ def test_move_book_staging_to_prod(
     monkeypatch: pytest.MonkeyPatch,
 ):
     """Test moving a book from staging to prod"""
-    title = create_title(name="test_en_all")
+    title = create_title(name="test_en_all", flavours=["mini", "maxi"])
     collection = create_collection(warehouse=warehouse)
     create_collection_title(title=title, collection=collection, path=Path("zim"))
 
-    book = create_book(name="test_en_all", date="2024-01")
+    book = create_book(name="test_en_all", date="2024-01", flavour="maxi")
     book.title = title
     book.location_kind = "staging"
     create_book_location(
@@ -666,6 +666,39 @@ def test_move_book_staging_to_prod(
     assert target_locations[0].filename == "test_en_all_2024-01.zim"
 
 
+def test_move_book_with_different_flavor_from_title_to_prod(
+    dbsession: OrmSession,
+    warehouse: Warehouse,
+    create_book: Callable[..., Book],
+    create_title: Callable[..., Title],
+    create_collection: Callable[..., Collection],
+    create_collection_title: Callable[..., CollectionTitle],
+    create_book_location: Callable[..., BookLocation],
+    monkeypatch: pytest.MonkeyPatch,
+):
+    """Test moving a book with different flavor from it's title from staging to prod"""
+    title = create_title(name="test_en_all", flavours=["mini", "maxi"])
+    collection = create_collection(warehouse=warehouse)
+    create_collection_title(title=title, collection=collection, path=Path("zim"))
+
+    book = create_book(name="test_en_all", date="2024-01", flavour="nopic")
+    book.title = title
+    book.location_kind = "staging"
+    create_book_location(
+        book=book,
+        warehouse_id=Context.staging_warehouse_id,
+        path=Context.staging_base_path,
+        filename="test_en_all_2024-01.zim",
+        status="current",
+    )
+    dbsession.flush()
+
+    now = getnow()
+    monkeypatch.setattr("cms_backend.db.book.getnow", lambda: now)
+    with pytest.raises(ValueError):
+        move_book(dbsession, book_id=book.id, destination="prod")
+
+
 def test_move_book_same_destination_raises_error(
     dbsession: OrmSession,
     create_book: Callable[..., Book],
diff --git a/backend/tests/mill/processors/test_zimfarm_notification.py b/backend/tests/mill/processors/test_zimfarm_notification.py
index ed68402..da3dcb0 100644
--- a/backend/tests/mill/processors/test_zimfarm_notification.py
+++ b/backend/tests/mill/processors/test_zimfarm_notification.py
@@ -582,6 +582,54 @@ def test_moves_book_to_staging_due_to_diffrent_metadata_from_title(
         assert book.needs_file_operation is True
         assert book.needs_processing is False
 
+    def test_moves_book_to_staging_due_to_diffrent_flavour_from_title(
+        self,
+        dbsession: OrmSession,
+        warehouse: Warehouse,  # noqa: ARG002
+        create_zimfarm_notification: Callable[..., ZimfarmNotification],
+        create_title: Callable[..., Title],
+        create_collection: Callable[..., Collection],
+        create_warehouse: Callable[..., Warehouse],
+    ):
+        """
+        Test that book goes to staging because there is a flavour mismatch between
+        it and it's title
+        """
+
+        title = create_title(name="test_en_all", flavours=["maxi", "mini"])
+        title.maturity = "stable"
+
+        prod = create_warehouse(
+            name="prod", warehouse_id=UUID("00000000-0000-0000-0000-000000000003")
+        )
+        collection = create_collection(warehouse=prod)
+
+        ct = CollectionTitle(path=Path("wikipedia"))
+        ct.title = title
+        ct.collection = collection
+        dbsession.add(ct)
+        dbsession.flush()
+
+        content = VALID_NOTIFICATION_CONTENT.copy()
+        content["folder_name"] = ""
+
+        notification = create_zimfarm_notification(content=content)
+        dbsession.flush()
+
+        process_notification(dbsession, notification)
+
+        assert notification.status == "processed"
+
+        book = dbsession.query(Book).filter_by(id=notification.id).first()
+        assert book is not None
+        assert book.title_id == title.id
+        assert book.location_kind == "staging"
+        assert len(book.issues) == 1
+        assert set(book.issues) == {"flavour mismatch"}
+        assert book.has_error is False
+        assert book.needs_file_operation is True
+        assert book.needs_processing is False
+
 
 class TestValidNotificationOnArchivedTitle:
     """Test valid notifications that are associated to an archived title."""
diff --git a/frontend/src/components/BookTable.vue b/frontend/src/components/BookTable.vue
index 7539e93..ec0b373 100644
--- a/frontend/src/components/BookTable.vue
+++ b/frontend/src/components/BookTable.vue
@@ -41,8 +41,18 @@
         </template>
 
         <template #[`item.flavour`]="{ item }">
-          <span v-if="item.flavour">{{ item.flavour }}</span>
-          <span v-else class="text-grey">-</span>
+          <div>
+            <span v-if="item.flavour">{{ item.flavour }}</span>
+            <span v-else class="text-grey"></span>
+            <v-tooltip v-if="item.has_flavour_mismatch" location="top">
+              <template #activator="{ props: tooltipProps }">
+                <v-icon v-bind="tooltipProps" color="warning" size="small" class="ml-2">
+                  mdi-alert
+                </v-icon>
+              </template>
+              <span>Book flavour does not match title flavour</span>
+            </v-tooltip>
+          </div>
         </template>
 
         <template #[`item.date`]="{ item }">
diff --git a/frontend/src/components/EditBookForm.vue b/frontend/src/components/EditBookForm.vue
index 8af6eed..4ce5427 100644
--- a/frontend/src/components/EditBookForm.vue
+++ b/frontend/src/components/EditBookForm.vue
@@ -1,7 +1,7 @@
 <template>
   <v-card flat>
     <v-card-text>
-      <v-form ref="formRef" @submit.prevent="handleSubmit">
+      <v-form ref="formRef" v-model="formValid" @submit.prevent="handleSubmit">
         <v-row>
           <v-col cols="12">
             <v-select
@@ -55,6 +55,7 @@ const emit = defineEmits<{
 }>()
 
 const formRef = ref()
+const formValid = ref(false)
 
 const localBook = ref({
   flavour: props.book?.flavour || '',
@@ -65,7 +66,7 @@ const rules = {
 }
 
 const isDisabled = computed(() => {
-  return props.loading || !hasChanges.value
+  return props.loading || !hasChanges.value || !formValid.value
 })
 
 const formattedFlavourOptions = computed(() => {
@@ -87,6 +88,8 @@ watch(
       localBook.value = {
         flavour: newBook.flavour || '',
       }
+      // Reset form validation when book changes
+      formRef.value?.resetValidation()
     }
   },
   { deep: true, immediate: true },
diff --git a/frontend/src/components/TitleForm.vue b/frontend/src/components/TitleForm.vue
index 68e5c79..7b5ad17 100644
--- a/frontend/src/components/TitleForm.vue
+++ b/frontend/src/components/TitleForm.vue
@@ -29,6 +29,24 @@
           </v-switch>
         </v-col>
       </v-row>
+      <v-row>
+        <v-col cols="12">
+          <v-combobox
+            v-model="formData.flavours"
+            label="Expected Flavours"
+            variant="outlined"
+            density="compact"
+            clearable
+            chips
+            multiple
+            closable-chips
+            hint="Press Enter to add a new flavour or select from available options"
+            persistent-hint
+            :items="availableFlavours"
+            :loading="loadingFlavours"
+          />
+        </v-col>
+      </v-row>
     </div>
 
     <v-divider class="my-6" />
@@ -342,6 +360,7 @@
 <script setup lang="ts">
 import ImageEditor from '@/components/ImageEditor.vue'
 import { useCollectionsStore } from '@/stores/collections'
+import { useBookStore } from '@/stores/book'
 import type { BaseTitleCollection, Title, TitleUpdate } from '@/types/title'
 import type { Book } from '@/types/book'
 import { computed, ref, watch } from 'vue'
@@ -364,10 +383,13 @@ const emit = defineEmits<{
 }>()
 
 const collectionsStore = useCollectionsStore()
+const bookStore = useBookStore()
 
 const formRef = ref()
 const formValid = ref(false)
 const loadingCollections = ref(false)
+const availableFlavours = ref<string[]>([])
+const loadingFlavours = ref(false)
 
 const formData = ref<TitleUpdate>({
   name: '',
@@ -383,6 +405,7 @@ const formData = ref<TitleUpdate>({
   license: null,
   relation: null,
   source: null,
+  flavours: [],
 })
 
 const originalCollections = ref<BaseTitleCollection[]>([])
@@ -550,6 +573,13 @@ const hasChanges = computed(() => {
   const relationChanged = formData.value.relation !== props.title?.relation
   const sourceChanged = formData.value.source !== props.title?.source
 
+  // Check if flavours changed
+  const titleFlavours = props.title?.flavours || []
+  const formFlavours = formData.value.flavours || []
+  const flavoursChanged =
+    titleFlavours.length !== formFlavours.length ||
+    !titleFlavours.every((f) => formFlavours.includes(f))
+
   return (
     nameChanged ||
     maturityChanged ||
@@ -563,6 +593,7 @@ const hasChanges = computed(() => {
     licenseChanged ||
     relationChanged ||
     sourceChanged ||
+    flavoursChanged ||
     hasCollectionChanges.value
   )
 })
@@ -654,6 +685,7 @@ function resetFormToTitle(title: Title) {
     license: title.license,
     relation: title.relation,
     source: title.source,
+    flavours: title.flavours ? [...title.flavours] : [],
   }
 
   originalCollections.value = collections.map((c) => ({ ...c }))
@@ -675,6 +707,7 @@ function resetForm() {
     license: null,
     relation: null,
     source: null,
+    flavours: [],
   }
   originalCollections.value = []
   formRef.value?.resetValidation()
@@ -691,6 +724,20 @@ async function fetchCollections() {
   }
 }
 
+async function fetchFlavours() {
+  loadingFlavours.value = true
+  try {
+    const flavours = await bookStore.fetchBookFlavours()
+    if (flavours) {
+      availableFlavours.value = flavours
+    }
+  } catch (err) {
+    console.error('Failed to fetch flavours', err)
+  } finally {
+    loadingFlavours.value = false
+  }
+}
+
 function getFormData(): TitleUpdate {
   // For creation (non-edit mode), include all fields with their current values (null if not set)
   if (!isEditMode.value) {
@@ -708,6 +755,7 @@ function getFormData(): TitleUpdate {
       license: formData.value.license,
       relation: formData.value.relation,
       source: formData.value.source,
+      flavours: formData.value.flavours || [],
     }
   }
   return { ...formData.value }
@@ -766,6 +814,17 @@ function getUpdatePayload(): Partial<TitleUpdate> {
     payload.source = formData.value.source
   }
 
+  // Check if flavours changed
+  const titleFlavours = props.title.flavours || []
+  const formFlavours = formData.value.flavours || []
+  const flavoursChanged =
+    titleFlavours.length !== formFlavours.length ||
+    !titleFlavours.every((f) => formFlavours.includes(f))
+
+  if (flavoursChanged) {
+    payload.flavours = formData.value.flavours
+  }
+
   if (hasCollectionChanges.value) {
     payload.collection_titles = formData.value.collection_titles
   }
@@ -776,6 +835,7 @@ function getUpdatePayload(): Partial<TitleUpdate> {
 // Expose methods and data for parent components
 defineExpose({
   fetchCollections,
+  fetchFlavours,
   resetForm,
   resetFormToTitle,
   getFormData,
diff --git a/frontend/src/components/TitleFormDialog.vue b/frontend/src/components/TitleFormDialog.vue
index e68a090..e94c2d9 100644
--- a/frontend/src/components/TitleFormDialog.vue
+++ b/frontend/src/components/TitleFormDialog.vue
@@ -72,8 +72,8 @@ const isOpen = computed({
 
 watch(isOpen, async (newValue) => {
   if (newValue) {
-    // Fetch collections when dialog opens
     await titleFormRef.value?.fetchCollections()
+    await titleFormRef.value?.fetchFlavours()
     error.value = ''
   }
 })
diff --git a/frontend/src/types/book.ts b/frontend/src/types/book.ts
index bfca9ad..18f7e00 100644
--- a/frontend/src/types/book.ts
+++ b/frontend/src/types/book.ts
@@ -26,6 +26,7 @@ export interface BookLight {
   name?: string
   date?: string
   flavour?: string
+  has_flavour_mismatch: boolean
 }
 
 export interface Book extends BookLight {
diff --git a/frontend/src/types/title.ts b/frontend/src/types/title.ts
index be497e4..200f969 100644
--- a/frontend/src/types/title.ts
+++ b/frontend/src/types/title.ts
@@ -30,6 +30,7 @@ export interface TitleLight {
   license: string | null
   relation: string | null
   source: string | null
+  flavours: string[]
 }
 
 export interface Title extends TitleLight {
@@ -52,6 +53,7 @@ export interface TitleCreate {
   license?: string | null
   relation?: string | null
   source?: string | null
+  flavours?: string[] | null
 }
 
 export interface TitleUpdate {
@@ -68,4 +70,5 @@ export interface TitleUpdate {
   license?: string | null
   relation?: string | null
   source?: string | null
+  flavours?: string[] | null
 }
diff --git a/frontend/src/views/BookView.vue b/frontend/src/views/BookView.vue
index 388eafe..f544d32 100644
--- a/frontend/src/views/BookView.vue
+++ b/frontend/src/views/BookView.vue
@@ -38,6 +38,33 @@
         </v-btn>
       </div>
 
+      <v-alert
+        v-if="book.has_flavour_mismatch"
+        type="warning"
+        variant="tonal"
+        class="mb-4"
+        icon="mdi-alert"
+      >
+        <div class="d-flex align-center">
+          <div class="flex-grow-1">
+            <div class="font-weight-bold mb-1">Flavour Mismatch</div>
+            <div>
+              This book's flavour is not in the list of flavours expected by the title. Consider
+              updating the book flavour or title expected flavours to maintain consistency.
+            </div>
+          </div>
+          <v-btn
+            v-if="canEditBook"
+            variant="outlined"
+            color="warning"
+            size="small"
+            @click="currentTab = 'edit'"
+          >
+            Edit Book
+          </v-btn>
+        </div>
+      </v-alert>
+
       <v-tabs
         v-model="currentTab"
         class="mb-4"
@@ -147,8 +174,18 @@
                     <div class="text-subtitle-2">Flavour</div>
                   </v-col>
                   <v-col cols="12" md="9">
-                    <span v-if="book.flavour">{{ book.flavour }}</span>
-                    <span v-else class="text-grey">-</span>
+                    <div>
+                      <span v-if="book.flavour">{{ book.flavour }}</span>
+                      <span v-else class="text-grey">-</span>
+                      <v-tooltip v-if="book.has_flavour_mismatch" location="top">
+                        <template #activator="{ props: tooltipProps }">
+                          <v-icon v-bind="tooltipProps" color="warning" size="small" class="ml-2">
+                            mdi-alert
+                          </v-icon>
+                        </template>
+                        <span>Book flavour does not match title flavours</span>
+                      </v-tooltip>
+                    </div>
                   </v-col>
                 </v-row>
                 <v-divider class="my-2"></v-divider>
diff --git a/frontend/src/views/TitleView.vue b/frontend/src/views/TitleView.vue
index b4ce272..40500a7 100644
--- a/frontend/src/views/TitleView.vue
+++ b/frontend/src/views/TitleView.vue
@@ -115,6 +115,28 @@
                 </v-row>
                 <v-divider class="my-2"></v-divider>
 
+                <v-row no-gutters class="py-2">
+                  <v-col cols="12" md="3">
+                    <div class="text-subtitle-2">Expected Flavours</div>
+                  </v-col>
+                  <v-col cols="12" md="9">
+                    <div v-if="title.flavours && title.flavours.length > 0">
+                      <v-chip
+                        v-for="flavour in title.flavours"
+                        :key="flavour"
+                        size="small"
+                        variant="outlined"
+                        color="primary"
+                        class="mr-2 mb-1"
+                      >
+                        {{ flavour }}
+                      </v-chip>
+                    </div>
+                    <span v-else class="text-grey">No flavours set</span>
+                  </v-col>
+                </v-row>
+                <v-divider class="my-2"></v-divider>
+
                 <v-row no-gutters class="py-2">
                   <v-col cols="12" md="3">
                     <div class="text-subtitle-2">Title</div>
@@ -571,6 +593,7 @@ onMounted(async () => {
   await loadData(true)
   if (props.selectedTab === 'edit' && title.value) {
     await titleFormRef.value?.fetchCollections()
+    await titleFormRef.value?.fetchFlavours()
     await loadLatestBook()
     titleFormRef.value?.resetFormToTitle(title.value)
   }
@@ -588,6 +611,7 @@ watch(
 
     if (newTab === 'edit' && title.value) {
       await titleFormRef.value?.fetchCollections()
+      await titleFormRef.value?.fetchFlavours()
       await loadLatestBook()
       titleFormRef.value?.resetFormToTitle(title.value)
     }