Milk Safety Inspection

Milk is frequently adulterated with water, urea, detergent, and starch to increase volume and thickness. 1. The Shake Test (Detergent Check): Shake a small amount of milk in a glass bottle or container. Pure milk forms small bubbles that disappear quickly. Detergent-adulterated milk forms thick, dense foam that persists for a long time. 2. The Slip Test (Water Dilution): Put a drop of milk on a polished slanted surface (like a steel plate). Pure milk flows slowly, leaving a distinct white trail behind. Water-diluted milk flows instantly without leaving any trail. 3. The Iodine Test (Starch Detection): Add a drop of iodine to a small sample of milk. If the milk turns blue-black, it indicates the presence of starch or flour used as a thickener. 4. The Texture Test (Urea/Soap): Rub a few drops of milk between your fingers. If it feels unusually slippery or soapy, it likely contains detergent or urea.