Shelf life ,Tinned and Dry

[NorthernRaider]

You need to have SOME air circulation but it needs to be cool and dry, often a double walled garage with a tiled roof should remain cool enough, however you may find that for example if its window or metal door gets the full sun on it t they act like a heating element, so some folks need to insulate the door or cover the window from the outside to ensure it stays cool. Problem is lots of folks have boilers etc in their garages these days and occasionaly they can make a garage quite warm. But 50 degrees fahreheit aint bad.

---

The Colder the better is the norm for food shelf life but often in garages can also get damp and its damp rather than cold that buggers up tinned or bagged foods, most of my stuff be it tins or bags is stored inside plastic tubs with lids to keep the moisture out.