Item #: Ujar02
Availability: In Stock
Usually ships In 1-2 Days
  • Natural Organic Brown Rice Flour
  • Vermiculite
  • Mineral Water
  • Liquid worm castings
  • Bee Pollen

Price: $43.00

    Quantity:

    (Daily limit in place) 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 140 Reviews:

    Perfect for a lvl1 mycologist!

    Rating:
    Pros:
    • Easy
    • Price
    Cons:
    The jars are incredibly easy to use together with any of the growing kits. There's really not much else to say. They work just as advertised. The jars can be used again and again once purchased. Personally I use a few as drinking glasses as a reminder of good growing times.

    Perfect for a lvl1 mycologist!

    Rating:
    Pros:
    • Easy
    • Price
    Cons:
    The jars are incredibly easy to use together with any of the growing kits. There's really not much else to say. They work just as advertised. The jars can be used again and again once purchased. Personally I use a few as drinking glasses as a reminder of good growing times.

    They work

    Rating:
    Pros:
    Cons:
    Great starter or lazy guy kits, you’ll be moving to full tub substrate in no time. The work For the average beginner

    12 pack BRF Jar AMAZING

    Rating:
    Pros:
    Cons:
    Hands down best seller ! Always good results

    NC

    Super pleased with midwest grow kits!

    Rating:
    Pros:
    • Price
    • speed
    • advice
    Cons:
    • Can't think of any.
    This is the fifth (maybe sixth?) time I've ordered substrate jars from Midwest Grow Kits and I've been very pleased every. single. time. Not only do they arrive really fast, it's obvious that MGK pays close attention to the packaging as I've never experienced even one broken jar. Aside from the physical items they offer, the information and advice they provide is simply priceless. I'm convinced that I have a 100% success rate because MGK is such an awesome company! Five stars! Two thumbs up! Keri D.

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