Some say an opened tin of SPAM can last indefinitely, but the best before date is 3 years (Image: Getty) This tinned meat product continues to be a popular cupboard staple amongst many British households. After being introduced in the US in 1937 it became popular in the UK during the Second World War in the face of wartime rationing. This was partly down to its low price and long shelf life.

It is estimated that 100 million pounds of SPAM was sent to military personnel during the war, which was a huge help to the war effort and is something the product will always be revered for. Despite being incredibly processed and perceived as unappealing to many, SPAM is still being bought around the world, with 9 billion units being sold since it was first introduced to the market. function loadOvpScript(){let el=document.

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