Allergy Guide
Shellfish Allergy and Chinese Food
Shellfish allergy can be difficult on Chinese menus because shrimp, crab, lobster, oyster sauce, dried shrimp, shrimp paste, seafood broth, and shared cooking surfaces may appear in dishes that do not look like shellfish dishes.
Shellfish allergy on a Chinese menu
Shellfish can appear as the main ingredient, a sauce ingredient, a dried seasoning, a paste, a broth base, or a cross-contact issue. Oyster sauce is especially important because it often appears in vegetable, noodle, beef, chicken, tofu, and mixed dishes.
What to watch for
| Shellfish source | Common places it appears | Why it is easy to miss |
|---|---|---|
| Shrimp | Dumplings, fried rice, noodles, soups, fillings. | May be minced into fillings. |
| Dried shrimp | Vegetables, fried rice, sauces, Malaysian Chinese dishes. | May be used as seasoning. |
| Shrimp paste | Southeast Asian Chinese dishes, sauces. | Strong flavor but not always obvious in English. |
| Oyster sauce | Vegetables, beef, chicken, noodles, tofu. | Common in dishes not labeled seafood. |
| Crab/lobster broth | Seafood soups and sauces. | May flavor mixed seafood dishes. |
| Shared wok/fryer | Most restaurants. | Cross-contact risk. |
Better choices and limits
| Choice | Why it may help | Ask for |
|---|---|---|
| Plain steamed rice | No shellfish expected. | Confirm no shared garnish or sauce. |
| Garlic greens | Simple if made without oyster sauce. | No oyster sauce, dried shrimp, shrimp paste, seafood stock. |
| Plain steamed chicken or tofu | Can be simple. | No oyster sauce or seafood-based marinade. |
| Home cooking | Best control. | Use shellfish-free sauces. |
| Restaurants with allergen protocols | Better communication. | Ask about shellfish and cross-contact. |
Ordering script
Simple request
“I have a shellfish allergy. Does this contain shrimp, crab, lobster, oyster sauce, dried shrimp, shrimp paste, seafood broth, or shellfish in the cooking surface or fryer?”