The sweet potato is rich in carotene, which the body can turn into vitamin A. Sweet potatoes can be canned, made into baby food, and processed in other ways.
但繼而發現麵包的膨脹度無法維持，純麵粉做的麵食因麵粉中含有麵筋，不會有這個問題；我們另使用一些食品添加物，終能醱得蓬鬆可口。」