Which off the shelf foods last the longest?

[Prepaday]

Whitworhs powdered semolina, comes in a pack, not heavy, Semolina is a coarse pale-yellow flour ground from hard durum wheat and used to make traditional pasta. It can also be used to make pizza, bread and biscuit doughs as well as gnocchi. The term also refers to a British milk pudding, in which semolina is cooked slowly in milk and sweetened with sugar. This dish is served topped with a spoonful of honey, jam or fresh or dried fruit.

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Eggs stored in their original carton can last 4 to 5 weeks beyond the packing date, which is marked either on the egg or the carton. To keep longer, break each egg, lightly whisk and freeze each one in an ice cube tray. When frozen, release the egg cubes into a freezer bag. They can be used in baking and cooking up to a year from the freezing date. I have heard (never tried) eggs can be stored for a long time if placed in a black bucket full of sand, Apples can supposedly be stored in sand for ages also, not sure about a year though at least 6 months.