Green spots on bread are typically caused by mold growth. Mold is a type of fungus that thrives in warm and humid environments and can easily grow on various organic materials, including bread. When bread is exposed to moisture or improper storage conditions, it creates an ideal environment for mold to develop.
Mold spores are present in the air around us, and they can land on the bread and start to grow if the conditions are right. The green spots you see are colonies of mold. They often appear fuzzy or powdery, and their color can range from green to blue or even black.
It's important to note that consuming moldy bread is generally not recommended. While some types of mold are harmless, others can produce mycotoxins, which are toxic substances that can cause illness if ingested in large quantities. Even if the moldy part is removed, the spores and toxins can potentially spread to the rest of the bread.
To prevent mold growth on bread, it's important to store it properly. Make sure to keep bread in a cool, dry place, preferably in a sealed bag or container. Avoid exposing it to excess moisture or humidity, as this promotes mold growth. Additionally, consuming bread before its expiration date and checking for any signs of mold or unusual odors can help you avoid eating contaminated bread.