[lalpphilalk]

best way to check the hotness of chilli's before you buy them in the supermarket, is to grab one snap it in half then rub both halves in both eyes at the same time ensuring the seeds get behind your eyelids, this is achieved by blinking repeatedly.

but if you've already bought them and your unsure of their heat before committing them to the chilli, just do the same actions minus the trip to the supermarket to reasearch.