How is chilli hotness compared?
In 1902 Wilbur Scoville developed a method for measuring the strength of capsicum in a chilli and this scale is used today to measure the pungency of chillies in Scovilleunits.The Scoville scale begins at zero with mild bell peppers and moves the habernero which rates as one of the hottest chillies somewhere between 100,000 and 500,000 Scoville units.