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:: Raw Ingredients
Dehydrated Horse Manure
Our horse manure is the best there is for mushroom cultivation. All of our manure originates from purebred show horses that are fed Grade-A organic...
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Organic Rye Berries
Organic Rye Berries. 100% USDA certified organic non-GMO grains. Rye berries are regarded as the highest quality grain to make mushroom spawn out of....
Brown Rice Flour
All natural, whole grain brown rice flour. Our all natural BRF is 100% stone ground on a very fine setting. Brown rice flour is the main ingredient...
Coarse (large) sized vermiculite. Coarse vermiculite is typically used as an ingredient in mushroom substrates for the purpose of retaining moisture....
Fine (small) sized vermiculite. Fine vermiculite is commonly used as an ingredient in mushroom substrate cakes, such as PF-tek style cakes. The PF...
Natural perlite. Our perlite is large sized (coarse grade) and is free of any additives or chemicals. Perlite is most frequently used to keep...
Organic Coconut Coir Brick
A brick of organic coco coir weighs approximately 650 grams and makes approximately 10 quarts after being hydrated. This is an eco-friendly product...
Horticultural grade granular (quick-release) gypsum. Gypsum is commonly used as an ingredient in mushroom substrates and casing mixtures. The primary...
Fresh Cut Wheat Straw
Fresh cut wheat straw. Our wheat straw comes pre-shredded into pieces averaging between 2" and 4" in length. This straw is meant to be pasteurized...
Birch Wood Dowel Pins
These spiral groove dowel pins are made of birch wood and measure 8mm x 25mm (5/16" X 1"). Perfect for making plug spawn for wood-loving species. To...
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Sealing Wax for Plug Spawn
100% natural soy wax flakes for sealing plug spawn inoculation sites. GMO-free. Melting temperature of 145°F. Our wax flakes melt easily in a double...
Organic Peat Moss
Pre-sifted organic peat moss. Shroom Supply peat moss comes pre-sifted of large sticks and clumps. Peat is commonly used as an ingredient in mushroom...
Horticultural grade hydrated lime is frequently used as an ingredient in mushroom substrate casing material. It is primarily used to raise the pH of...
Oyster Shell Flour
Oyster shell flour is an excellent source of calcium carbonate and is often used in casing mixtures to adjust pH levels. It breaks down slowly over...
Dry wheat bran. Wheat bran is commonly used as an ingredient in substrates of wood-loving mushroom species. Sold in ½ gallon increments.
Dehydrated "Grade-A" poultry manure. Chicken manure is sometimes used as a nitrogen supplement in bulk substrates, especially when spawning to coir....
Wild Bird Seed
Premium wild bird seed. Wild bird seed (WBS) is often used as a mushroom grain spawn. A common preparation method is to thoroughly rinse the seed...
Rye Grass Seed
Seasonal rye grass seed. Rye grass seed is often used as a grain spawn for sclerotia producing strains. Many prefer it for sclerotia production over...
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Happy Veterans Day! Troops, thank you for your service!
Posted November 11
added! Also, be sure to check out our current
Posted February 12
Posted January 15
Now shipping to
Posted October 14
Just wow. Taking the guess work out of mushroom culivation...
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