Question

How to prevent mold growth on outer surface of bread?

Answer 1

1. Moisture contributes to the faster growth of mold. Hence, do not allow your bread to turn moist. It is always better to preserve the bread that is brought from the store, in its original packaging bag.
2. If you are making bread at home, use ingredients that contain oils, like butter, eggs, milk, etc. This will allow the bread to stay fresh for longer period.

Answer 2

methods to prevent mould growth on bread
1 keep the surrounding moisture low
2 by reducing humidity
3 mould generally don't grow in cold environment