Put one slice of bread into a labeled and sealed plastic bag. Moisten another slice of bread with water. Place it in a labeled and sealed plastic bag. Put bags by window and check daily. Moist bread molded faster than the dry bread.
Mold needs moisture to grow.
The water provided moisture. The sealed bag kept he water the bag. This information will be passed along to my parents. They need to be made aware of this when my lunch is packed. I think that Bounty will be the strongest.