Food Storage Tips - Preventing Corrosion of Canned Goods

Re-post courtesy of Riverwalker's Stealth Survival

Many areas have difficulty storing metal canned goods for long periods of time. This is usually caused by very high humidity levels, exposure to moist, salty air in a coastal environment or storage in basements or cellars with high humidity. If this is a problem, it is possible to extend the life of metal cans by coating the outsides of the cans. There are several different ways in which this can be accomplished.

Paste Wax Method

Combine 2 to 3 ozs. of paste wax with a quart of mineral spirits. Warm the mixture carefully in its container by immersing it in a large pot of hot water. Stir the wax and mineral spirits thoroughly until it is well mixed and completely dissolved. Paint the cans with a brush making sure to coat all seams and joints. Place the cans on a wire rack until dry. DO NOT HEAT OVER AN OPEN FLAME!

Paraffin Method

Using a double boiler, paraffin is melted and brushed onto clean, rust free cans. Make sure to get a good coat on all the seams and joints. If the can is small enough, it can be dipped directly into the wax. Be careful so as not to cause the labels to separate from the cans. Do not leave in long enough for the can to get warm. Afterwards, place on a rack to dry.

Spray Silicone Method

A light coating of ordinary spray silicone may be also used to deter rust. Spray lightly, allow to dry, and then wipe gently with a clean cloth to remove excess silicone.

Clear Coating Method

A clear type coating may also be sprayed or brushed on the seams and joints of the cans. This is best suited for larger re-sealable cans, but it will keep your canned goods protected from corrosion for years.

Staying above the water line!

Riverwalker