Understanding Butter Composition and Spoilage

The Science Behind Butter Spoilage

Butter spoils primarily due to two processes: oxidation and microbial growth. Oxidation occurs when the fats in butter react with oxygen, leading to rancidity, which gives the butter an unpleasant taste and smell. Although microbial growth is slower in butter due to its low moisture content, molds and certain bacteria can still develop over time.