flour
baking powder
Sugar/salt/cream/peanut oil/milk powder/water/an egg and so on.
Most of the above substances are easy to breed bacteria and mold (especially in wet, high temperature and exposed environment).
The mildew of bread crust is caused by the action of mold. There are many kinds of molds that pollute bread, such as Penicillium, Penicillium, Rhizopus, Aspergillus ochraceus and white mold.
The bread with mold in the early stage has a musty smell and spots on the surface, which will continue to spread to the whole crust. Bacteria can also invade the depths of bread and fill the honeycomb of the whole bread, so that the whole bread will be moldy in the end.
The following measures can be taken to prevent mildew: cleaning with workshops and tools regularly and eliminating mildew; Mould is easy to breed in damp and dark environment, and obvious preventive effect can be achieved by sun exposure, ultraviolet irradiation and ventilation.
It is hot and rainy in spring and summer in the south, and bread is easy to get moldy. When making, we should have four passes, that is, "mixing thoroughly", "hair thoroughly", "baking thoroughly" and "cooling thoroughly" It's a good way to prevent bread from getting moldy in spring and summer, among which the key is to be cool and thorough.