Build your own inexpensive canning cooker from a 55-gallon drum using this building guide and can large amounts of food outdoors during summer while keeping your house cool.
Be sure that the 55-gallon drum is clean and free of chemicals, and that it has a bung hole with a screw-type cover at each end (most drums have a large opening at one end and a smaller one at the other).
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Speaking of firing up, all you need is some kindling and — once the blaze is established — a few good-size logs.
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When the canning season is over, touch up any exterior rusty spots with spray paint, give the inside and the grating a light coating of WD-40 lubricant, and remove the legs and chain and stash them in the barrel.