THE “UNIVERSAL EDIBILITY TEST”
Warning – Edible Weeds WARNING: This test (or a very similar one) is given in many of the survival books, however it is not recommended to use this test on any unknown plant(s) unless you are in a situation where there are no other options for survival. Since you can live easily without food for a week or more (and probably a few weeks or more depending on the situation), unless you are lost for an extended period of time, in most cases you would be better off NOT to use this test at all. (Though it’s okay — and generally a good idea — to use this test on plants that you are already able to identify and know to be safe to eat, just to be even more sure.)
Many people have died eating wild plants which they thought were edible. Fungi (e.g. mushrooms) are even more dangerous — the best attitude to fungi is to not even consider eating wild fungi under any circumstances. They contain almost no calories anyway. Even at least one expert on mycology (the study of fungi) along with all of his family has died from eating wild fungi that they believed to be edible.
Furthermore, to avoid potentially poisonous plants, stay away from any wild or unknown plants that have:
• Milky or discoloured sap. • Beans, bulbs, or seeds inside pods. • Bitter or soapy taste. • Spines, fine hairs, or thorns. • Dill, carrot, parsnip, or parsley like foliage. • “Almond” scent in woody parts and leaves. • Grain heads with pink, purplish, or black spurs. • Three-leaved growth pattern.
THE TEST
When tasting unknown plants follow these guidelines to find out whether it is edible.
1.Test only one part of a potential plant at a time
2.Smell the potential food plant for strong or acid odours (but remember smell alone does not indicate if plant is edible).
3.Select a small portion of a single part of the plant (i.e. fruit) and prepare it in the way you plan to eat it.
4.Touch a small portion to the outer surface of the lips (testing for itching or burning sensation).
5.If no reaction after 3 minutes then place the plant part on the tongue holding there for 15 minutes
6.If no reaction, chew a portion without swallowing and wait 15 minutes
7.If no burning, itching, numbing, stinging or other irritation occurs during the 15 minutes, swallow.
8.Wait 8 hours, if any ill effects occur during this time drink lots of water and induce vomiting.
9.If no ill effects occur eat half a cup of the plant part prepared the same way. Wait 8 hours, if no ill effects occur then the plant part as prepared is edible.