The term SPAM MAY BE IN IT can be solved by the three letter word TIN. TIN is a chemical element with the symbol Sn and atomic number 50. It is a soft, malleable, silvery-white metal that is used in many everyday items such as cans, foil, and cooking utensils. TIN is also used to make alloys such as bronze and pewter. As the term suggests, TIN cans are often used to store food products such as Spam, which may be why it was used as a solution for this crossword.