MycoRAW™ Rye Berries 8oz


  • Organic Winter Rye Berries
  • 8oz packet (1/2lb)
  • GMO Free
  • Will approximately double in size when processed


*See bag info in description. Only 1x add-on per order. Doesn’t multiply per product qty.

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MycoRAW™ Rye Berries 8oz

MycoRAW™ Rye Berries 8oz consists of 100% organically grown Rye Grain (also known as Rye Berries). Rye berries are the most preferred grain by novice and expert mushroom growers for colonizing bulk mushroom substrates with a grain spawn. Rye grain has been used for years by both hobbyists as well as commercial style mushroom growers. After preparing and inoculating rye grain spawn, mycelium grows very fast as it allows aeration and more surface area for the mycelium to grow, not to mention the great moisture retention. Rye grain, when processed for mushroom grain spawn will approximately double in size after processed.

EX. 8 oz of dry rye berries after being processed will equal 16 oz approximately.


  • 8oz of Rye Berries
  • Non-GMO
  • 100% Organic
  • Popular grain for grain spawn jars and bags

Don’t want to make your own grain spawn?

Check out our 1LB & 3LB Rye Grain Spawn Bags here!
Check out our 16oz & 32oz Rye Grain Spawn Jars here!

*Add-On 4T Bag Info:

These grain spawn bags are the exact bags we use for our 1# rye, and popcorn grain spawn bags. After processing your 8oz of rye it will equal roughly 1LB. We recommend if you need bags to purchase 1-4T bag for each 8oz of rye grain. You can try to get 2 packs into 1 bag. There is a lot of room left over. 

Add-On quantity is selected from drop down, it is added independently of the product qty. Please select exact amount of bags you want from the dropdown, then the exact amount of 8oz-rye on qty beside the add to cart button.

ex. #1: 2x – 8oz rye and 2x – 4T Bags > Add to Cart = 2x – 8oz and 2x-4t Bags.

– NOT > Add to Cart = 2x – 8oz and 4x-4t Bags.

ex. #2: 2x – 8oz rye and 1x – 4T Bags > Add to Cart  = 2x – 8oz and 1x-4t Bags.

– NOT > Add to Cart = 2x – 8oz and 2x-4t Bags.

4T – Grain Spawn Bag Specs:

5″X4″X1 8″
3.0mil PP
Filter: A 1.5″X1.5″
0.5 micron

Additional information

Weight .645 lbs
Dimensions 5 × 3 × .75 in


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