1. The main reason for banning smoking in flour workshop is to prevent explosion. There are many flour particles floating in the flour production workshop. Flour particles are flammable and will explode when exposed to air, so fireworks are strictly prohibited.

Flour is a kind of powder ground from wheat. According to the content of protein in flour, it can be divided into high gluten flour, medium gluten flour, low gluten flour and gluten-free flour. Flour (wheat flour) is the staple food in most parts of northern China. There are many kinds of food made of flour, with many patterns and different flavors.