Rye Grain MycoJar


The grain you receive from us is made with many years of experience.  It’s Sterile and ready to inject with your favourite mushroom species.

Inoculate with 2-3ml of gourmet liquid culture solution, agar wedge from a petri dish or via grain to grain transfers from another jar.

Use this jar to spawn to spawn to other jars, or bulk substrates for huge mushroom grows.

Gloves, hand wipe and alcohol wipes
Useful if you don't intend to use immediately
What’s included
  • 1000ml MycoJar filled 2/3rds of Organic Rye Grain with added Coffee and Gypsum
  • Breathable contamination barrier made of synthetic stuffing

Can take around 4-5 weeks to fully colonise in optimum conditions.
Colonisation can be sped up by braking and shaking grain at around 50-60% completion.
Does not come supplied with a gourmet spore or culture syringe or any extras not listed above.
Some wood-loving species like Shiitake will also fruit on this substrate.


If you live outside of the United Kingdom, email first for a shipping quote.
Product is made fresh to order – Please check our dispatch schedule here.
Only for use in cultivating species which are legal to grow – research the law.