Hello, you don't have to choose flour, just medium gluten flour. In fact, the fried dough sticks technology is very simple. You can buy a bag of alum-free dough sticks leavening agent [Paoduoyuan] in Taobao shop, and then ask Liangshan Tianxi, the manufacturer of Paoduoyuan, for technical information. It can fry healthy fritters without alum and aluminum, which are large in size, crisp in taste and not hard after cooling.