- Organic Blue Oyster Mushroom Grain Spawn
Organic Blue Oyster Mushroom Grain Spawn
|Grow location||Indoor & outdoor|
|Spawn shelf life||4 months (refrigerated)|
|Flavor profile||Savory, meaty, earthy|
|Certifications||USDA certified organic|
|Bag weight||6 lbs|
Blue Oyster (Pleurotus ostreatus) is a fast substrate colonizer with a strong bluish-gray hue that produces richly umami mushrooms with a soft, meaty texture. Blue oysters are great for beginners, and as our most productive oyster strain, they are reliable indoor year-round producers. If kept in the right conditions, they will yield substantial first, second, and even third harvests (making them one of the best commercial varieties!) When cultivated outdoors, they are generally cold tolerant and fruit prolifically in early spring or late fall.
Blue oyster grain spawn can be used for indoor production using sawdust or straw or outdoor production using straw or wood chips.
Do not use grain spawn for log inoculation.
Oyster mushroom grain spawn can be mixed into sterilized or lime pasteurized substrates including but not limited to hardwood sawdust, straw, and coffee grounds.
Note: Grain spawn must be mixed with bulk substrate before you can fruit it. If you are new to growing mushrooms, we recommend purchasing a book on mushroom cultivation.
'Growing Gourmet and Medicinal Mushrooms' by Paul Stamets
'Organic Mushroom Farming and Mycoremediation' by Tradd Cotter
Oyster spawn can be spread in chopped straw or wood chips as shown in the video below! Making outdoor beds is one of the easiest methods for growing any type of oyster mushroom.
For our complete mushroom beds pamphlet, click here.
Be sure to use clean, untreated products when making outdoor beds.
Colonization Temps 75 degrees F Fruiting Temps 55-75 degrees F CO2 Sensitivity <1000 ppm
- Colonization - When mycelium is growing, but no fruiting bodies (mushrooms) are present.
- Fruiting - The phase of growth in which visible mushrooms begin to appear.
- CO2 sensitivity - When CO2 levels are too high, yields will decrease, stems will become long and stringy, caps will be small, and/or growth will halt.
If you don't plan to use immediately, you can refrigerate your spawn for up to 4 months.
Blue oyster mushrooms can easily replace button mushrooms in most recipes and pair well with many cuisines and flavors. Like all oyster mushrooms, they retain water and may develop a viscous texture when under-cooked. If you prefer a firm or dryer texture, continue to cook Oysters until their liquid has reduced and cooked off and they begin to brown.
Our grain spawn is USDA certified organic and made using organic cultures from our own culture bank. It contains a blend of locally sourced, organic, and non-GMO ingredients from farms in New England and North America.
If you’re going to consume home-grown mushrooms, make sure to cook your fresh mushrooms thoroughly with heat. If it is your first time eating this species, it is best to start with a small amount to check for allergies, even if cooked.
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WORTH EVERY PENNY, I wish I could give more than five stars.
I love that I can get fully colonized grain spawn! Six pounds for $30 is a STEAL. I have done it myself before, but you guys just make it too easy! Thank you for everything you do!
Great customer service
I had a bag of blue oyster grain spawn come that wasn't fully colonized. After waiting on it for a bit, it became contaminated. So I contacted North Spore with some pics of what happened and they immediately sent me out another one. The new bag came fully colonized and I had an amazing first flush of blue oysters. These folks are super helpful and the customer service is great.
Excellent product, good price point for the weight and quality of others. Made in Maine. Excellent customer service. Look no further, north spores got what you need. I’m anxiously waiting to fruit these oysters! Thanks!
A wonderful product
This spawn worked perfectly for me!! I'm growing in a 5 gallon bucket, and after about three weeks am starting to see fruiting body pining out of my holes!! Can't wait to give them a try next week or so. Easiest thing I've ever grown!!