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However, after you got past being offensive you did follow with a little bit of decent advice.
There are no universal edibility tests is very true.
Many very dangerous plants taste fine.
The fact that most poisonous plants are horrible tasting is not a reliable test at all.
It is to bad that you could spend years learning all the poisonous plants in your area, and still would not know a single food plant.
Or you could learn a few good safe food plants and learn them well enough to start safely with them.
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I did not say there are no universal edibility tests; and the Universal Edibility Test is not only about taste. It is designed to reduce the risk of eating irritating plants, and avoiding allergic reactions to otherwise edible plants, as well as to reduce the risk of eating poisonous plants, and is a very valuable knowledge tool. What I said is that I would never substitute the test for a reliable positive edible id, but that it is an otherwise very useful test in determining one's own physical reaction to a new edible. By the way, I consider a reliable positive edible id to be by way of a reputable regional flora-key, such as the Jepson Manual for CA.