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Sterilized Rye Berries - Grain Spawn


Starting at: $7.95

Please Choose:





Sterilized and prepared mushroom grain spawn substrate (1 lb.) in a gusseted autoclave bag with filter patch and self-healing injection port. Shroom Supply grain spawn is composed of 100% USDA certified organic rye berries which is widely regarded as the highest quality grain for spawn production and is the industry standard for mushroom cultivation. The substrate is free of any additives or chemicals and is recommended for use with our pre-pasteurized mushroom compost.

Once colonized with mushroom mycelium, we recommend using the colonized grain spawn to inoculate a bulk substrate, like our premium pre-pasteurized mushroom compost. We recommend spawning two pounds of our grain spawn to five pounds of our compost. Alternatively, the colonized grain spawn can be transferred to more sterilized grains to promote further propagation of the mushroom mycelium (also known as a grain to grain transfer).

We prepare our organic rye berry grain spawn by thoroughly rinsing the grains, then soaking them for 18 hours in a gypsum-fortified water bath to ensure optimal moisture and mineral levels. Immediately after the soak, the rye is simmered for 10 minutes in distilled water. The rye berries are then sterilized at 15 PSI in a lab-grade autoclave for a complete 120 minutes.

Our grain spawn comes heat-sealed in a sterile, filter-patch mycobag with injection port and can be stored at room temperature for up to 14 days before use. If longer than 14 days is needed, the grain can be stored in a clean container in the refrigerator for up to six weeks. Do not freeze.

All sterilized grain spawn will come packaged in individual 1 lb. bags, regardless of quantity ordered.

Made to order, usually ships within 2 business days.


Instructions: How to inoculate sterilized grain bags

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04/25/2015
mr. Anderson , newbie
5 of 5 Stars
wow, I mean wow, fastest shipping iv ever had . ordered on Thursday and at my door on Saturday. iv got to say also I am about 4 states away to. haven't started research as yours came before the spores so we will see. also thanks for the free syringe, clean and dry , I am sure ill find a use for it. thanks guys and if all goes well ill be ordering again soon . so far, very happy.
04/22/2015
the dude
5 of 5 Stars
What else can be said.These guys know what they are doing and from what I can see first hand is the best product at the best price.Along with fast delivery, put all that together and you've got this place.
04/19/2015
Doogle
5 of 5 Stars
This product is amazing and very simple even for new newbies. I ordered five grain bags from shroom supply and five from another vendor. Two out of the three bags from the other vendor have decent looking mycelium. The other three have either contaminated or have wet spot and have stopped. All five of the shroom supply bags are thriving and have the thickest, healthiest looking Growth. I cant wait for the next step! Thanks shroom supply!
02/20/2015
EverythingAtOnce
5 of 5 Stars
These bags went from being great to PERFECT. Shroom Supply just started including injection ports on all of their rye bags... and they didn't raise the price! I LOVE LOVE LOVE the injection ports. That make inoculation of the bags so easy and they ease my mind about contamination! Thank you guys!
01/28/2015
Brandon
5 of 5 Stars
Great product, produced amazing results, 10/10 would recommend.
03/07/2014
rockhound2040
5 of 5 Stars
Although I'm fairly new to the hobby I've always have had good service and fast delivery. Next time I'm going to order these if for no other reason than simple ease of operation.

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