THIS is the world's hottest chilli - bred in rainy Grantham, Lincs, but so fiery it can put diners in HOSPITAL. The variety out-scorches its nearest rival, which is so hot it is used in mob-control grenades by the Indian Army. Tests by Warwick University rate the new variety at 1,067,286 on the Scoville Scale which is used to measure the heat of peppers. The former record-holder, the Indian Bhut Jolokia, is 1,041,427. A jalapeno measures just 2,500 to 5,000. Weapons-grade pepper spray is 2,000,000.