I am wondering if there is an easy way of checking how spicy a pepper is. There are a few scales and even an objective scale of 1 to 10 is fine for the type of chillies you usually buy, but my question concerns the fact that the spiciness can vary by quite a lot from 2 nearly identical peppers. i.e. I could have 2 habenero peppers with very different potency. If I'm making salsa I can check with my tongue but this can be annoying if they are very hot.
I understand that High Pressure Liquid Chromatography can give a very accurate breakdown of each exact chemical but if I am just concerned about the spiciness surely there is some test that would be similar to measuring the pH of a chilli.
A litmus test for spiciness?