it depends
Check the exact label
Oyster sauce is label-dependent until you read the label. Some products contain wheat or soy sauce, while others may be gluten-free or use gluten-free thickeners.
Why it matters
The answer depends on the exact label, source, allergen statement, and advisory wording.
Why this can be confusing
- Oyster sauce can include oyster extract, soy sauce, caramel color, starches, and flavorings.
- Wheat may appear in soy sauce or seasoning components.
- Similar-looking bottles can have different ingredient lists.
What to check on the label
- Wheat, soy sauce, wheat flour, hydrolyzed wheat protein, or wheat starch.
- Contains: wheat statements.
- Modified food starch or starch source wording if the label is otherwise unclear.
- A gluten-free claim on the exact product.
Want a label-specific answer?
Install GlutenScan and scan the ingredients list.
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