Mushroom Compost


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Mushroom Compost

Mushroom compost growing requires five steps, then packing, before fresh mushrooms are shipped to customers.

Phase I

Straw bedding from horse farms, or baled straw, protein meal, gypsum and water are mixed together and kept outdoors to be biochemically converted into the preliminary food source for the mushroom by the tremendous heat naturally evolved.

Phase II

The compost produced in “Phase I” is mixed with vegetable oil and more water, then filled into wooden trays before “Phase II” starts. Once into the “Phase II” room, the compost is pasteurized to free it of weed molds and insects, then cooled down to room temperature so that the mushroom spawn can be added. “Phase II” requires six (6) days to accomplish.

Spawn Running

After the spawn has been planted, it will grow in thirteen (13) days to completely cover the compost that is now serving as a food source.

A Brief Description of Mushroom Production Case Holding and Growing

A mixture of peat moss, limestone, and water is applied to the top of the tray. The spawn starts to grow in the mixture and in a few days, carefully controlled environmental changes bring about fruiting or pinning.
The environment is controlled carefully to encourage the mushrooms to reach maturity. Size and quality are of utmost importance. The mushrooms are then picked skillfully, according to size and maturity, and hand sorted into baskets. The stump is trimmed and discarded. The crop is actually picked for up to four breaks, or 28 days, and then dumped and replaced with a new crop.


The harvested mushrooms are immediately placed in a cooler, chilled, then packed in a film-wrapped container or bulk boxes and moved into the finished product cooler. Very strict quality control checks are used to assure a high quality product. The boxed product is then placed in refrigerated trucks and delivered to the markets within 24-48 hours after harvest.

Mushroom compost is a great addition to vegetable gardens and flower beds and can be tilled into existing soil or lain 6″ thick and planted directly into in the case of vegetable gardens. Consists of Wheat-straw, Dried Poultry Litter, Recycled Gypsum, Alfalfa Screenings, Sugar Beet Lime and Dried Urea, which are combined and composted after mushrooms are grown in the material and then picked, creating a superb soil conditioner/amendment.  Combine with Planting Mix in a 50/50 ratio for an ultra-rich raised bed blend.


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