Hot Chilli Seeds. In this category you will find chilli seeds for hot chillies. Generally speaking, these are chillies ranging from 350,000 SHU to 600,000 SHU. That is some 70 to 120 times hotter than a Jalapeno. These chillies are ridiculously hot and even though they are a long shot off the hottest chillies on this website, they will probably be hotter than anything you have ever tried before.