Reply To: Do sefardim have Sushi at their pesach seder?

It seems the wheat in soy sauce is actually fermented, among other ingredients. This from one company’s website:

All-purpose Kikkoman Soy Sauce is traditionally brewed from wheat, soybeans, water and salt. Like fine wine, Kikkoman Soy Sauce is aged for several months to develop its characteristic rich, yet mellow flavor, appetizing aroma and distinctive reddish-brown color.