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Has been used for the cake method or for casings with more nutrition than our standard LGBR + Verm. Mix. (Long grain brown rice + Vermiculite)
Very easy to use, ready to inject, sterilized and vacuum sealed. Produces large flushes with excellent nutritious fruit bodies. High quality select birdseed with nutrition coat soaked and pre-pressure cooked in mineral water, to absorb maximum moisture. Lasts a lot longer and produces much more transferable nutrition and moisture than other substrates. The rice flour in mix is used as an immediate source of food (nutrition) and the Birdseed Mix is a slow release nutrient that all mycelium LOVES! and slowly eats its way inside the seed's core. Magnificent Casing substrate, that colonizes FAST. 

This mixture (substrate) is very easy to use, and comes sterile and ready to inject with your choice spores. All mixed and put together for you. The sterilized substrate filled jars come in a vacuum sealed bag to guarantee sterility.
This mix is good for beginning/advanced cultivators, because it is the simplest and easiest mixture to work with, but adds support for casing and spawning techniques as well with the addition of the seed mix. Good for any strain and most species.
This particular mix will stay together nicely, and is one of the best and easiest to do the CAKE METHOD with. See our "RESOURCES" page for specifics.

It can also be crumbled to be used with a casing method to result in higher yields and usually larger fruits. See our Sterilized Casing Soils in the "COMPOST AND CASING SOILS" page.

Comes with a FREE medical gloves, high efficiency operation filtration mask, and detailed information which is now available in a free CD ROM format with high definition pictures with tons of info and tips that makes it incredibly easy to grow your own edible mushrooms as it guides you step by step in an easy to follow walk-through.

These JARS are guaranteed to be delivered sterile.
Get 6 half-Pint jars for only $68.95.
with Free 20cc spore syringe of your choice. (for microscopy study only)

All jars come with an extra fine dry vermiculite top layer that rests between the substrate and the lid. This layer has been proven very effective in filtering oxygen and allowing a CO2 exchange even in a non-sterile environment.

FREE 20cc spore syringe of your choice. A 20cc syringe is more than enough to inoculate all 6 Jars. We recommend using at least 40ccs of spores for faster performance. You can purchase additional spore syringes separately to study up to 6 different species and/or strains at the same time!


For wild, gourmet, or exotic species or strains, read up a bit about their preferred growing environments and substrates. Most mushroom species can be started from this mixture, but might require a casing or a transfer into of a certain kind of soil, compost, dung, or wood mix.

It's great for starting spawn

Sorry, no Psilocybe spores to residents in the states of CA or GA or ID.
Jar orders can still be shipped to these states, but not the spores. Please do not place an order for spores (or free spores) if you are in these states. If you still decide to order, your jars will be sent without spores and there will be a $15 non-refundable "Annoyance Fee" (unless given a legal shipping address).

****This item may take anywhere from 12-30 days to ship! We always try to get it to you as fast as possible, but everything is meticulously hand made and scrutinized for perfection.
Definitely worth the wait! You may check the progress at any time by emailing us.****
Quantity Price
1 - 3
4 - 11
Customer Reviews

Customer Reviews

Average rating from 6 reviews: 4.8 Showing: 3 of 6 Show All
Absolutely one of THE best purchases I ever made!!! =)I am not someone who says something like the latter easily NOR would I shill a review. This product was part of my first order from Earths Tongue. You hear "forget kits etc. etc." on many of the forums. These are NOT kits, just helpers. If you want to embark on the amazing journey that is microscopy/mycology (it's a big deal and I didn't pull the trigger for years because there is a sea of info overload out there and not so easy for the beginner) and want what seems like a bulletproof recipe for success (combined with an ET NEW MOON Syringe) I can say BUY THESE!!!! My entire order had TLC and "these guys/gals" really know what they are doing and care" written all over it. Follow the provided instructions and use the provided tools (as well as DYOR and add some things of your own) and there WILL be pure magic!!! It's been almost 2+ months and I STILL have more flushes of Golden Teachers coming than a poker game (in fact so many I am wondering if it's normal lol).And the support/service from ET is second to none. Which ain't easy to find these days!!! Happy Trails - JLB Written by Justin Byrnes - JLB for posts on Tue 17 Jul 2018 10:08:31 PM GMT
...accomplishment, learning, and wonder!I decided to order from Earth’s Tongue for several reasons; the website is well designed, great visuals, and they provide information that addressed the concerns I had as a first timer. Earth’s Tongue went beyond simply giving assurance of quality products; in “Why we are different” they explained how they ensure quality. They even gave me an instructional DVD. Service was spot on; product was as promised. Finally the enjoyment of cooking up and serving oyster mushrooms I produced, as delectable as they were, was eclipsed by experience of nurturing and the thrill of watching them grow. Thank you! Written by HIAWATHA on Sat 18 Apr 2015 4:56:23 PM GMT
the best JarsI've tried so many different substrate combinations, and the vermiculite jars are the most fool-proof. Rarely get infected and produce great yields with minimal effort. Written by Joshua Gallaudet on Thu 19 Mar 2015 4:26:31 AM GMT
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