Blue Oyster Mushroom Grain Spawn


Buy Blue Oyster Mushroom Grain Spawn online. Blue Oyster (Pleurotus ostreatus) is a quick substrate colonizer with a prominent bluish-gray colour that produces mushrooms with a soft, meaty texture and a deep umami flavor. Blue oysters are excellent for novices, and being our most prolific oyster variety, they are dependable indoor producers throughout the year. They will produce considerable first, second, and even third harvests under optimal circumstances (making them one of the greatest commercial cultivars!) When grown outdoors, they are often cold-tolerant and provide abundant fruit in early spring or late autumn.

The grain spawn of the blue oyster may be used for indoor production with sawdust or straw, or for outdoor production with straw or wood chips. Don’t use grain spawn to inoculate logs.


Buy Blue Oyster Mushroom Grain Spawn online.

Buy Blue Oyster Mushroom Grain Spawn online. Our pure mushroom grain spawn is already colonized and ready to grow. The grain spawn is grown in 6-pound filter patch bags. This oyster spawn is distinguished by its enormous fruiting bodies, rapid spawn run, and gorgeous, brilliant blue hue when young.

It bears fruit at a broad range of temperatures and produces three or more flushes over many months. Excellent growth on alder chips, straw, sawdust supplements, toilet paper, and several other substrates. Buy Blue Oyster Mushroom Grain Spawn online.

Indoor cultivation

Mixing oyster mushroom grain spawn with sterilized or lime-pasteurized substrates, such as hardwood sawdust, straw, and coffee grounds, is possible. Before grain spawn can be fruited, it must be blended with bulk substrate. If you are new to mushroom culture, you should get a book on mushroom cultivation.

Outdoor cultivation

As seen in the video below, oyster spawn may be distributed over chopped straw or wood chips. Creating outdoor beds is one of the simplest ways to cultivate oyster mushrooms of any kind. Click here for our comprehensive mushroom bed brochure. When constructing outdoor beds, use only clean, untreated materials.

Temperature Guide

Colonization Temps 75 degrees F
Fruiting Temps 55-75 degrees F
CO2 Sensitivity <1000 ppm


If you do not intend to use your spawn immediately, you may refrigerate it for up to six months.


Blue oyster mushrooms may be substituted for button mushrooms in the majority of recipes and match nicely with a variety of cuisines and tastes. Undercooked oyster mushrooms, like other oyster mushrooms, retain water and may acquire a sticky texture. If you want a firmer or drier texture, continue cooking the oysters until their liquid evaporates and they begin to brown.


Our grain spawn is organically certified by the USDA and is produced using organic cultures from our own culture bank. It features a combination of locally produced, organic, non-GMO ingredients from New England and North American farms.

Cautions & considerations

If you want to consume homegrown mushrooms, ensure that you cook them properly with heat. If you are consuming this species for the first time, you should begin with a modest quantity to test for allergies, even if it is cooked.

How can Blue Oyster mushrooms be grown?

Blue Oyster mushrooms needed a far higher amount of fresh air exchange than any other frequently produced mushroom. Blue Oyster mushrooms grown in a high CO2 atmosphere will produce long, thick stems and tiny caps. They also produce a substantial amount of spores, which may rapidly fill your grow space with a dense spore burden. The Blue Oyster Fungus

Can blue oysters be grown in a 5-gallon bucket?

Blue Oyster mushrooms are very adaptable and may be grown in 5 gallon buckets with holes punched in them or any other container. Mature Blue oysters cultivated outdoors in a 5 gallon bucket with holes punched in it. Outside, Blue Oyster mushrooms are flourishing. The Blue Oyster Fungus

What is the optimal method for harvesting oysters?

Collect the mushrooms by hand-picking or severing whole clusters. Mushrooms will last longer if they are handled carefully and preserved in a cluster as opposed to being picked off individually. Pink or yellow oysters will last longer in the refrigerator than blue oysters.

What is Blue Oyster grain spawn used for?

1 kilogram of Blue Oyster Grain Spawn (Pleurotus ostreatus var. columbinus) Inoculating wheat straw or sawdust with Grain Spawn. It can be used to inoculate hardwood outdoors, but it is not ideal since it will attract squirrels and other animals that will attempt to consume the grains. Blue Oyster Grain Spawn 1 kilogram/2.2 pounds

What substrate do Blue Oyster mushrooms grow on?

The blue oyster grows on almost all types of wood, including paper, cardboard, coffee grounds, straw, sawdust, and wood chips. Wheat straw and sawdust, often known as HWFP, are the most widely utilized and easily accessible substrates (hard wood fuel pellets). Once wheat straw is correctly prepared, blue oyster mushrooms grow vigorously on it. Blue Oyster Fungus

How long does it take for oyster mushrooms to grow?

The blue oyster mushroom (pleurotus ostreatus var. columbinus) is a forgiving, enjoyable to cultivate, entertaining to observe, and delectable gourmet fungus. The mycelium is vigorous and may produce fruit in around two weeks. Blue Oyster Grain Spawn 1 kilogram/2.2 pounds

What is the biological efficiency of the Blue Oyster mushroom?

The blue oyster’s biological efficiency is among the greatest, ranging between 100 and 200 percent. At the fruiting stage, the blue oyster mushroom needs four to eight times the amount of fresh air exchange (FAE).

Can you grow oyster mushrooms in a syringe?

A 10cc liquid culture syringe is used to cultivate edible and medicinal king oyster mushrooms. The King Oyster, also known as Pleurotus eryngii, is the biggest member of the Pleurotus family. king oyster mushroom – Official Premium Spores

How are oyster mushrooms manufactured?

Indoor Commercial Production – Oyster mushroom grain spawn may be blended with substrates that have been sterilized or lime-pasteurized, including but not limited to hardwood sawdust, straw, and coffee grounds. Larger projects may need a substantial amount of infrastructure, but simpler, low-tech operations may not. Grow Blue Oyster Mushrooms from Spawn | North Spore

What is the most common type of oyster mushroom?

The well-known blue oyster mushroom is one of the most prevalent oyster mushrooms used in cooking cuisines. Shiitake mushrooms, lentinula edodes, are most likely the most widely grown fungus in the world.
Popular Gourmet Mushroom Cultures – SPORES and muShroom

What are oyster mushrooms good for?

In many tests on mice, rats, and hamsters, the fruiting bodies and distillates of oyster mushrooms were shown to diminish tumor growth (Hobbs, 1995). Of the Czech Republic, oyster mushrooms have been utilized as the primary component in a nutritional supplement intended to treat excessive cholesterol (Hobbs, 1995).

Additional information


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