Food adulteration test for Milk & Milk Products (fssai)

 Food adulteration test for Milk & Milk Products

 

Testing Method:(water)

• Put a drop of milk on a polished slanting surface.
• Pure milk either stays or flows slowly leaving a white trail behind.
• Milk adulterated with water will flow immediately without leaving a mark.

                  

 

 

 

Testing Method:(detergent in milk)

1. Take 5 to 10ml of sample with an equal amount of water.
2. Shake the contents thoroughly.
3. If milk is adulterated with detergent, it forms dense lather.  
4. Pure milk will form very thin foam layer due to agitation             

 

 

                                                       

 

Testing Method: (starch in milk)

• Boil 2-3 ml of sample with 5ml of water.
• Cool and add 2-3 drops of tincture of iodine.
• Formation of blue colour indicates the presence of starch.(In the case of milk, addition of water and boiling is not required)