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How to Use Egg Shells in the Garden

  - How to Use Egg Shells in the Garden - Egg shells are a good source of calcium, as they are composed of mostly calcium carbonate. But putting large egg shells in the garden or composter will not provide readily available calcium that plants need. Large egg shells take a LONG time to break down. Wash the Egg Shells Always thoroughly wash the egg shells. I like to place them in a colander in the sink, and spray water with my faucet spray nozzle, to remove any liquid egg. Heat-Dry the Egg Shells The shells then need to be dried well. You can place them on a metal pan in the oven 275°-300°F (135°-150°C) for about 20 minutes, or place a heat-safe bowl of egg shells on the floor in front of a wood stove while it's running in cool weather. This is my preferred method, as I don't have to heat up the oven. I recommend heating the shells to kill any potential salmonella, as opposed to just letting them dry without heat. Finely Crush the Egg Shells Wait until you have a large amount of

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