Adulteration of ghee is a documented problem in the Indian food market. Common adulterants include vegetable oils, vanaspati (partially hydrogenated fat), starch, and mashed banana. A laboratory can identify these precisely, but three simple tests at home give you a reasonable indication of purity.
Test 1: The Heat Test
Take a small pan and heat it on medium flame until hot. Add half a teaspoon of ghee directly.
What to observe:
- Pure ghee melts immediately, turns a deep golden colour, and smells nutty and rich
- Adulterated ghee may foam excessively, smell neutral or slightly off, or take longer to melt
- If the ghee produces a white foam that doesn't subside quickly, it may contain milk solids that weren't fully clarified, or added starch
This test is more reliable for detecting impurity in texture than identifying the specific adulterant.
Test 2: The Palm Test
Place a small amount of ghee — about the size of a pea — in the centre of your palm. Close your fist and hold it for 30 seconds.
What to observe:
- Pure desi ghee melts at body temperature. When you open your hand, it should be liquid or near-liquid
- Commercial ghee made from cream-method processing also melts, but has a more neutral smell
- Adulterated ghee or vanaspati may stay semi-solid — vegetable fats typically melt at a higher temperature than pure ghee
Bilona ghee tends to melt slightly more easily than cream-method ghee because of its slightly different fat composition. This test is most useful for detecting vanaspati or hard vegetable fat adulteration.
Test 3: The Water Test
Add one teaspoon of ghee to a glass of cold water and stir gently.
What to observe:
- Pure ghee does not dissolve in water. It floats to the surface as a single, unified layer
- If the ghee breaks into small droplets or produces a milky emulsion, it may contain added milk solids or emulsifiers
- Starch adulteration can sometimes be detected by adding a drop of iodine solution: starch turns blue-black. Pure ghee shows no colour change
What These Tests Can't Tell You
These tests detect gross adulteration reasonably well. They cannot:
- Distinguish A2 from A1 ghee
- Identify cream-method vs bilona production
- Detect low-level adulteration with oils that have similar melting points to ghee
- Confirm the source animal or feeding practices
For those distinctions, you're relying on the reputation and traceability of the producer. Lab testing is available (FSSAI-certified labs can run GC-MS analysis on fatty acid profiles) if you want definitive verification.
What Good Ghee Looks Like
Reference points for pure bilona ghee:
- Colour: Golden to slightly orange-yellow. Not white (cream-method tends to be lighter)
- Texture at room temperature: Solid in cool weather, semi-soft in warm weather. Grainy texture is normal — it indicates proper crystallisation of fat
- Smell: Rich, nutty, slightly caramel. Not flat or neutral
- Taste: Full, slightly sweet, leaves a clean finish. Not greasy
If your ghee passes the heat test and palm test and matches these characteristics, you're almost certainly looking at something genuine.
