Opening a fresh bag of pre-shredded cheddar or mozzarella for a weeknight dinner frequently reveals a fine dusting of white powder clinging to the dairy flakes. This chalky coating often catches the eye of home cooks who wonder if the powder is an artificial additive, a sign of spoilage, or an accidental manufacturing defect.
Uncovering the food science and packaging mechanics behind this common supermarket observation removes unnecessary alarm. Examining how commercial dairies process and store cheese explains exactly what that white powder is and why it remains essential.
