Item #: ujar01
Availability: In Stock
Usually ships In 1-2 Days

6 Ultimate 1/2 Pint Substrate Jars Include:

  • Natural Organic Brown Rice Flour
  • Vermiculite
  • Mineral Water
  • Liquid worm castings
  • Bee Pollen
  • Fully Sterilized - Ready to go!

Price: $25.00

    Quantity:

    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 170 Reviews:

    Perfect

    Rating:
    Pros:
    • Quality product
    Cons:
    • None that i know of
    My order was perfect. The shipment arrived on time and everything was intact, no broken jars.

    Albany

    Success in every jar!

    Rating:
    Pros:
    Cons:
    I have had a 'Perfect 10' with each one of these I have purchased! That, is more than enough reason to keep reordering!

    PA

    awesome

    Rating:
    Pros:
    Cons:
    easy to use

    Great product

    Rating:
    Pros:
    • Great contact
    • shipping
    • product
    Cons:
    These things work VERY well with all types of mushroom spores!

    best in the biz

    Rating:
    Pros:
    Cons:
    my science fair project just took off with there jars. Top notch

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