Mushroom Grow Bag w/ injection site – 3lb Sterilized Sawdust Block w/ Rye Grain Pocket
Priced per bag.
0-3 = $15.00ea
4-9 = $12.50ea
10+ = $10.00ea
Made to order, usually within 1-3 days.
Once ready, your order will ship the next day.
38 in stock
Priced per bag. Bulk Pricing available and automatically applied in cart: 4-9 = $12.50ea | 10+ = $10.00ea
Made to order, usually within 1-3 days. Once ready, your order will ship the next day. While our rye bags arrive sterilized and free of contaminants, they are still somewhat perishable. MUST inoculate jars within 2 days of receiving your order for best results.
This product will be shipped at its freshest to guarantee viability. Any requests to hold shipping will result in possible damage to product, and no guarantee will be offered in such cases. Local customers must pick up their orders within two days upon notification. All sterilized rye is prepared to order and shipped early each week. Our experience in preparing this product has led us to make an informed decision to provide our customers with the freshest possible sterile product. As a result, sterile rye only moves through our sterilizers early in the week to ensure we can ship requested orders no later than Wednesday. We do not hold this product on our shelves.As a result, customers may experience a short delay in shipping. Thanks for your understanding!
Three pounds of sterilized supplemented sawdust with rye grain starter pocket in a gusseted autoclave bag with self healing injection site and air filter patch. Sterile and ready to accept mushroom culture.
The sawdust blocks are prepared with a mixture of hardwood sawdust, oat bran, and wood shavings. What sets these sawdust blocks apart from all others is the 1.5 cups of sterilized rye grain located at the injection site. By injecting through the self-healing foam disc, your mushroom culture can begin life on the grain, a much easier task for the fungi than growing directly on sawdust.
When the rye grain pocket is fully covered with white mushroom mycelium you can mix your bag, distributing the rye spawn throughout the sawdust. Recollect and compress back into block form and continue incubation. Once the sawdust block is completely white it may be used for mushroom production as a fruiting block or as spawn for expanding outdoor garden beds
DO NOT alter, tear away, or remove any portion of the attached white filter patch or the plastic shroud covering the injection site. These must remain intact and unaltered to function properly.
A note on rye sourcing: Our raw organic rye berries are secured immediately after the fall harvest and shipped by the ton to our facility, where they are quickly placed into cold storage. This allows us to ensure the freshest, highest quality grains are procured quickly and cared for properly. Grain sourcing is the single most important factor in ensuring quality substrate preparation and sterilization.
Mushroom Cultivation Tips
Once completely colonized with mushroom mycelium, you may use these bags as a fruiting block. When growing Oysters, Lions Mane, or Reishi cut several X’s into the sides of the bag over the block. Roll down the excess top bag material and secure with a clip or clothes pin (this will prevent mushrooms from forming inside the bag). Place in a suitable growing environment. These mushrooms will do well in normal room temperatures, but may stop growing if it gets too warm or cool.
When growing Shiitake mushrooms, remove block from the bag once it has become completely white. Place in a suitable growing environment, and keep temperatures cool (50-70F). The mushrooms will form as small bumps and rapidly mature. The block will develop a brown, tough “skin” as it ages, this is good! Keep it moist by misting daily!
Maitake mushrooms should remain enclosed in the bag until the small “brain-like” primordia begin forming on the block’s surface. Allow these to develop for a few days, then remove the excess bag material above the block, leaving a 1-2 inch collar above the block to help retain moisture. Place in a suitable growing environment. Mist daily with distilled or bottled water. Keep temperature around 65-75F. Once fruited and harvested, the block should then be buried in an outdoor shade mulch bed, as this is the only way it will reliably produce a second or third time. Outdoor fruitings can take some time after the block is buried, so keep it moist and be patient.
Pioppino mushroom should also be allowed to form baby mushrooms while the block is still contained in the bag. Once the primordia is well formed, remove the excess bag material above the block, leaving a small collar above the block to help retain moisture. Be careful not to damage the clusters of primodia, which may be forming near the edges of the block near the bag. Place in a suitable growing environment. Mist daily with distilled or bottled water. Keep temperature around 60F. Once fruited and harvested, the block should then be buried in an outdoor shade mulch bed, as this is the only way it will reliably produce a second or third time. Outdoor fruitings can take some time after the block is buried, so keep it moist and be patient.
Suitable growing environments can be constructed from old aquariums, rubbermaid type storage containers, or by simply using a plastic bag draped loosely over the block. The goal with any mushroom growing environment is to supply ample humidity, keep temperatures stable, and supply fresh air on a regular basis. This may require daily misting with distilled or bottled water (clean water), and frequent fresh air fanning of enclosed chambers (such as aquariums).
Note to local customers: to ensure freshness, most of our sterilized substrates and media are prepared to order. As a result we do not stock these items on our shelves, or place them into cold storage. Rarely, we may have a handful left over from the week’s run, but please call ahead of time to ensure we can prepare them for pickup.
Note to International customers: due to increased exposure and potential of longer transit times, we do not recommend this product to customers outside the USA. You may still place an order for and receive this product, but you will receive it “as is,” and may experience contamination or failure.
Bulk purchase discounts shown above. If you are interested in purchasing more than 20 bags at one time, additional shipping charges may be required before shipping due to weight. Please contact us for more information. To place an order for 40 or more bags, you must call us at 865-329-7566 to complete your order.