Sharwood’s is unleashing a cooking sauce made from one of the world’s hottest chillies.

Each jar of the company’s Bhut Jolokia curry sauce (rsp: £1.55) contains one Bhut Jolokia chilli which is 400 times hotter than Tabasco sauce, according to the Scoville scale of spicy heat. In 2007, Guinness World Records certified the Bhut Jolokia as the world’s hottest chilli, but it lost the title in 2010 to the Naga Viper pepper.

The company is donating 10p from the sale of each jar to The Soldiers’ Charity and will be supporting its Lord Mayor’s Big Curry event in April. The event supports soldiers and families who have been affected by the conflicts in Iraq and Afghanistan.

Sharwood’s is also introducing an on-pack guarantee across its Indian range, giving consumers the chance to get their money back if they are not completely satisfied.