- 1). Rinse out any debris with the garden hose, then discard the water.
- 2). Pour 1/4 cup of dish soap into the barrel, along with either 4 cups of liquid bleach or 4 cups of white vinegar. If you will be using the barrels to store food, vinegar is a natural, non-toxic disinfectant and cleaning agent. Never mix bleach with vinegar.
- 3). Fill the barrel halfway with water from the garden hose.
- 4). Dip a sponge into the cleaning solution, and wipe the upper edges of the barrel. Repeat until you have cleaned the barrel to your liking, then let the water sit in the barrel for two hours to kill any bacteria.
- 5). Discard the water, then rinse once more with the garden hose. The barrel is now ready for use.
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