The "Devil's Sausage" is so hot its creators at Rendalls Quality Butchers in Raploch, Stirling, must wear gloves and goggles to make them. And they said yesterday they won't sell the spicy snacks to young children or people with a heart condition.
The delicacy - which contains pork, sweet chili, jalapenos and the so-called "ghost pepper" Bhut Jolokia, one of the hottest peppers in the world - is said to be more than 400 times hotter than Tabasco sauce.
One customer, Robert Hamilton, 35, after taking a bite into one of the sausages yesterday, said: "It's hotter than hot. I can hardly speak."
The Bhut Jolokia is a 6cm long orange or red pepper from the Assam region of north-east India and Bangladesh.