What is alum-free fritters?

Alum-free fritters are fritters without alum.

After adding alum, the fried dough sticks will expand greatly.

Some vendors are wearing the banner of alum-free fried dough sticks, and their appearance is very beautiful. The oil used is ordinary oil, which is cleaner than old oil and waste oil. But alum was also added. After adding alum, the fried dough sticks will swell greatly, and the color is oily yellow, which is very beautiful.

My own fried dough sticks, without alum, are fried very cleanly. The surface seems to expand very little, and the inner core is relatively strong. Because eggs are added to the dough, the taste and color still look good.