1. Smell Test

• Cold Pressed Oil → Has a natural, strong aroma of the seed or nut (e.g., peanut smell for groundnut oil).

• Refined Oil → Very mild or no smell because deodorization removes aroma.

2. Taste Test

• Cold Pressed Oil → Distinct, raw, and natural flavor.

• Refined Oil → Neutral or bland taste.

3. Fridge Test

• Place the oil in the fridge for 6–8 hours.

• Cold Pressed Oil → May turn cloudy or form a layer of sediment because it retains natural waxes and fats.

• Refined Oil → Remains clear because these compounds are removed.

4. Foam Test (While Heating)

• Heat a small amount of oil in a pan.

• Cold Pressed Oil → May produce slight foam and a natural smell at lower heat due to unrefined proteins and moisture.

• Refined Oil → Foams much less and has almost no smell until high temperatures.

5. Color Test

• Cold Pressed Oil → Usually darker, golden, or slightly cloudy because of natural pigments.

• Refined Oil → Clear, light, and uniform color.