Lobsters, caviar and venison have long been described as a premium luxury food but due to a glut of Canadian lobster, discount supermarkets are competing to offer the best value on the crustacean. Both Asda and Iceland are selling whole cooked frozen lobster for £5 with Lidl stocking it for £5.99. Britain currently imports 2,600 tonnes of lobster last year compared to 1,900 tonnes in 2009.