What causes white spots on green olives?

White spots on green olives are usually caused by a process called oxidation. Oxidation is a chemical reaction that occurs when oxygen reacts with other substances, and it can cause the pigments in olives to break down. This can result in the formation of white or brown spots on the olives. Other factors that can contribute to the formation of white spots on green olives include mechanical damage, exposure to sunlight, and high temperatures.