1. Grab a clean dry test - tube
2. To around 2cm cubed of the sample add around 5cm cubed of ethanol
3. Shake violently to dissolve the lipid in the sample
4. Add 5cm cubed of water and shake less violently
5. If the content of the tube turens cloudy-white a lipid is present
6. As a control, use water as a sample
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