If after 15 minutes, there has been no reaction, try the same test using a different part of the plant (like the stem). This is important, since not all parts of a plant are necessarily edible (or non-poisonous).
Do The Taste Test
Once you’re confident the plant seems safe, it’s time to prepare it. Make sure to prepare it (cooking, sautéing, boiling, tearing and boiling for use in tea, etc.) in the way you wish to consume it. DO NOT just start putting raw plants in your mouth – this can be very dangerous.
Once you prepare the plant to your liking, rub it on the outside of your lip. If you do not experience a negative reaction in 15 minutes, that is a good sign.
Next place a small part of the plant onto your tongue and hold it there for a full minute. If there is still no negative reaction, chew the plant slowly – but do not swallow. Wait another 15 minutes to see how your mouth and body react to the plant. If after that point there is no negative reaction, you are free to consume it.
A Note To The Reader
This process may seem very tedious and time-consuming… and it very well can be. But it is far better to take the time and go slow than to hastily start consuming plants that will provide a very serious (or fatal) reaction. Although this process can seem to take forever, it is worth the time and effort.
It’s also important to remember that just because one part of the plant is edible, doesn’t mean all parts of it are. Repeat this procedure for each part of the plant you wish to eat. After all, this process can be crucial to your survival.
Identifying plants is hugely important for staving off hunger. Keep in mind you’ll want to do this process on a semi-full stomach so that your hunger does not cause you to rush through and eat something you’ll regret.