To detect if your turmeric has food color, just stain a cloth with a little turmeric and dip into a soap solution. Turmeric turns orange-red on reacting with soap. Food Color does not.
To detect if your turmeric has food color, just stain a cloth with a little turmeric and dip into a soap solution. Turmeric turns orange-red on reacting with soap. Food Color does not.