How to Compost Spent Grains
Whether you brew your own beer or simply have a local brewery willing to let you haul away their spent grain, the compost pile--and your garden soil--will thank you. This is especially true if your compost pile is primarily filled with grass clippings and other "green" materials. Spent grains are a great source of carbon to balance the nitrogen from green compost materials. It is also a good way to recycle one of the largest waste products from the beer-making process. Does this Spark an idea?
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Things You'll Need
- 4-foot by 4-foot compost bin
- Pitchfork or shovel
- Spent grains from beer making
- Grass clippings, plant trimmings, and other "green" compost materials
- Hose and water source
- 6-foot by 6-foot tarp
- 4 large stones or bricks
Instructions
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Layer the Compost
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1
Choose a convenient place near your garden to compost. Look for an area with firm, flat ground. Build or set up the compost bin in your chosen location.
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2
Shovel 3 to 6 inches of green material into the bottom of the compost bin. Top this with an equal amount of spent grain. Repeat these layers until you run out of materials.
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3
Sprinkle the compost bin with water until it has the moisture level of a damp sponge.
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4
If the weather is either hot and dry or very wet, cover the bin with the tarp and weigh it down with stones or bricks. This will keep the compost from drying out or becoming too wet. If the weather is dry, check the moisture level often and add water as necessary. Remove the tarp at night to allow air into the compost.
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5
Use the pitchfork or shovel to turn the compost weekly, or any time you add additional materials. Check the moisture level when you turn the compost and add water if necessary.
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6
When the compost is evenly colored and feels like potting soil, it is ready to be worked into the garden.
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Tips & Warnings
If you need to cover the bin to prevent over- or under-watering, remove it as soon as possible to allow air to enter the compost.
If you notice foul odors coming from the compost pile, turn it more frequently. Odors result from a lack of oxygen in the decomposition process, which prevents compost from forming properly.
