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Ultimate ½ Pint Substrate Jars (12-Pack)

Availability: In Stock
Usually ships In 1 Day
Item #: Ujar02
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4.94 stars, based on 206 206 review(s). | Write a review
Retail: $45.00
$5.01
Price: $39.99
You Save: $5.01 (11.1%)

    • Natural Organic Brown Rice Flour
    • Vermiculite
    • Mineral Water
    • Liquid worm castings
    • Bee Pollen

    Customers Also Bought (check to add to cart)

    Our 8oz Ultimate substrate jars are the quite possibly the best on the net! We have worked for over 15 years looking for perfection! We finally found it! We have combined special organic brown rice flour with vermiculite, mineral water, Liquid worm castings and Bee pollen to create the Ultimate mushroom growing jars! Each jar has four pre-drilled holes in the lid and a top dry layer of vermiculite for added protection. We have customers who have been using our jars for over 10 years simply because no other jars will out-perform ours! With the Fastest possible colonization times, the largest possible mushrooms no other jars will perform like these! We use Ball 100% Glass Canning jars! No plastic substitutes like others sell!

    We hand make every jar the morning your kit ships so your jars are the freshest possible! They are pressure sterilized in our Autoclave for 120 minutes.

    **Click here to read our update page about national canning jar shortages and pricing**

    Overall Customer Rating of 206 Reviews:
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    Awesome Quality

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    I’ve used these particular jars with 50+ grows and have had a 99% effective rate. Never have had an issue that wasn’t my fault. I highly recommend these for anyone getting into growing their own fruits/mushrooms.

    My go to jars

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    Perfect for easy grows.
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    The best

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    Pros:
    • Both times earlier then expected
    Cons:
    • None whatsoever
    This is my 2nd purchase from midwest and once again I wasn't disappointed with the speed and the product!!! Thank you Midwest! You are my only vendor for growing awesome fungi!!!

    1/2 pint substrate jars

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    Great value and even better product, these jars are reliable and always work. I am very satisfied and will continue to purchase

    Michigan

    You should be using Midwest growkits

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    If you want decent flushes with zero chance of contamination then you found the spot. My golden teachers blew up off there substrate and jars both grain and bed cakes!!