1, taste: the fritters with alum must taste ammonia and astringent, but the fritters without alum do not; It tastes soft, crisp outside and tender inside;

2. Look at the color of the fritters: the fritters made of alum are very swollen, such as transparent and oily, and the color is a bit dark and black, while the aluminum-free fritters are golden yellow or yellow in appearance, which looks very solid and does not absorb oil;

3, weigh by hand: the fritters made of alum are very empty, and the weight is very light, while the fritters without aluminum are heavier and much more affordable;

4. Observation after standing for two hours: the fritters made of alum are very soft and collapsed, and a lot of oil comes out from under the fritters, while the aluminum-free fritters have the same golden appearance, shape and taste, and there will be no oil under the fritters when they are placed.

I hope it will help you!

Hope to adopt, thank you.