Why is soy sauce listed as forbidden on the Japanese and Chinese card, but only as a “please check” item on the Thai card?
Soy sauce in East Asia (e.g., Japan, China, Korea) is traditionally brewed with wheat, and virtually all soy sauces in Chinese and Japanese restaurants contain wheat. On the contrary, in Southeast Asia (e.g., Thailand) soy sauce often does not contain wheat, and a good number of soy sauces in Thai restaurants will be gluten-free!
