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Does a worm composting bin smell?

April 26, 2017Bin composting smell worm

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Does a worm composting bin smell?

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Absolutely not. If it smells bad, then something is wrong. Worm composting is aerobic composting, just like a standard compost pile. This means that oxygen loving organisms break down the organic matter, and these organisms do not smell bad. When a bin or pile becomes anaerobic, meaning it is decomposing without oxygen, it smells because the bacteria are letting off sulfur.