Every year, for as long as I can remember I have grown chilli peppers. I find them fascinating, with their different shapes, colours, growth habits, leaf patterns and, of course, the heat. The heat of a chilli is caused by a compound called capsaicinoids, the most potent of which is capsaicin. The more capsaicinoids, the more heat you will feel from the chilli. This amazing compound developed by chilli plants binds to the pain receptors in your mouth, causing a sensation of intense heat.
Chilli plants are so clever because these compounds only affect mammals. They were designed to put mammals off eating the fruits. Birds, on the other hand, can eat chillies without any effects, allowing them to consume and subsequently distribute the seeds through their poop. The theory…