Cornwall was home to a lot of mines: famously copper and rather a lot of arsenic as well. I think the idea that the side crimp would be thrown away is pretty u

Cornwall was home to a lot of mines: famously copper and rather a lot of arsenic as well. I think the idea that the side crimp would be thrown away is pretty unlikely - there would be a fair few calories in it and the work done was backbreaking and demand every calorie possible. Throwing food away is a very modern concept.