Universal Edibility Test
Field protocol to verify whether an unknown plant is safe to eat when no expert identification is available.
DANGER: Never skip a step. If you feel nausea, burning, or dizziness at any stage, stop immediately and induce vomiting.
Required gear
Separate by Plant Part
Divide the plant into roots, stems, leaves, buds, and flowers. Test only one part at a time — never mix parts in a single test.
Odor Check
Crush a small sample and smell it. Reject anything with a strong, bitter, almond, or rotten odor before any contact test.
Skin Contact Test
Rub the selected part on the inside of your wrist or elbow. Wait 15 minutes. Redness, burning, or itching means the plant is toxic — discard it.
Lip Test
If the skin shows no reaction, hold a small piece on your outer lip for 3 minutes. Remove immediately if you feel tingling or numbness.
Tongue Test
Place a small piece on your tongue for 15 minutes without swallowing. Spit it out if you detect burning, itching, or numbness.
Chew and Spit
Chew a small portion thoroughly, hold it in your mouth for 15 minutes, then spit it out. Wait 8 hours. Do not eat or drink anything else during this window.
Small Swallow Test
If no reaction occurs, swallow a small bite and wait 8 hours. Monitor for cramps, nausea, or dizziness.
Full Portion
If still no symptoms, eat a normal portion of that plant part only. Wait another 8 hours before testing a different part or species.
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