Basic raw supplies for best amino acids manufacturer shoyu, in addition to foods generally and money to buy food were all in precariously quick supply. Among different things, there are a lot of sugar-stuffed conveniences foods: from breakfast cereals, cakes, cookies and sweets to frozen foods for cooking in the microwave. By 1976 it was shown that these new cooking situations considerably affected shoyu yields; additionally the soybeans started to be cooked in a continuous cooker.