Will bread get moldy in the freezer or out open first?

In the freezer.

Mold is a type of fungus that grows in warm, moist environments. The freezer is a cold, dry environment, so it is not ideal for mold growth. However, if bread is not properly sealed before being placed in the freezer, it can still become moldy. This is because the moisture in the bread can condense and create a moist environment that is ideal for mold growth.

Bread that is left out open at room temperature will also become moldy, but it will do so much more quickly than bread that is stored in the freezer. This is because the room temperature environment is warm and moist, which is ideal for mold growth.

Therefore, if you want to keep bread fresh for as long as possible, you should store it in the freezer. Just be sure to seal it properly before placing it in the freezer to prevent it from becoming moldy.