Midwest's Premium Select Bulk Casing is the perfect combination of Coco Coir, Vermiculite, Hydrated Lime, Gypsum, ph buffers, ph stabilizers, mineral water and a few other choice ingredients.
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Mushroom Casing (substrate) is a non-nutritious moisture retaining layer to spread on the top and bottom of your mushroom substrate. This method is generally referred to as the "Bulk" method, Monotub, or Bulk Substrate. this is the popular alternative way to fruit your spawn bags or jars. We provide easy to follow instructions on how to use and create your bulk grow. The hardest part of this process is achieving the perfect ratios of substrate, casing and water. We've made it easy!

Use the following amounts:

  • 1 Spawn bag per 5 pound bag of casing mix (using our 5grain or Rye spawn bag)
  • 6 Jars per 5 pound bag of casing mix (using our 1/2 pint substrate jars)
  • Shelf life of up to 6 months!

Retail: $20.00
Price: $18.00
You Save: $2.00 (10.0%)

    Quantity:

    Our top selling product every month! Midwest's Premium Select Bulk Substrate is the perfect combination of Coco Coir, Vermiculite, Hydrated Lime, Gypsum, ph buffers, ph stabilizers, mineral water and a few other choice ingredients. Our select casing comes fully hydrated and pasteurized and is ready to use right out of the bag! Use this along with a fully colonized spawn bag to start your bulk growing experience! Each 5 pound bag comes fully sealed and can be used right away or stored in the fridge/freezer for use up to 3 months later.

    Mushroom Casing (substrate) is a non-nutritious moisture retaining layer to spread on the top and bottom of your mushroom substrate. This method is generally referred to as the "Bulk" method, Monotub, this is an extremely popular way to fruit your spawn bags or jars. We provide easy to follow instructions on how to use and create your bulk grow. The hardest part of this process is achieving the perfect ratios of substrate, casing and water. We've made it easy!

    Overall Customer Rating of 113 Reviews:
    Minnesota

    sweet product!!!

    Rating:
    Pros:
    Cons:
    excelent service, and quality

    District Of Columbia

    Just Buy!!

    Rating:
    Pros:
    • Price
    • multi-flush
    Cons:
    Have used subs from other myco friends, companies but the best is here! This stuff came at perfect field capacity, colonized quickly and beautifully. 20lbs in 10 shoeboxes mixed with BRF cake spawn and I just harvested flush 3.....Cant wait to see what it does with rye berry spawn :) Stay tuned for Rye Berry review...just inoculated.

    CA

    good mix

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    Cons:
    I don't have much experience with other sites products but I know midwest has some of the best prices that I have found and I love this casing mix

    Asheville, NC

    Best Substrate I've used

    Rating:
    Pros:
    • Quality
    • results
    • price
    • amazing product
    Cons:
    • None
    In the past I've made my own substrate to transfer my spawn jars to. My results were ok and I was satisfied. This time I chose to purchase a substrate with additional nutrients from a reliable source. The company I purchase spores from recommended Midwest Grow Kits. There is an amazing difference between what I produce myself and using the substrate from Midwest. The fruiting occurred much faster which helps to reduce bad bacteria growth, there was a large increase in the amount of pins, and the mushrooms are larger, healthier looking, and meatier.
    The product is priced well, it arrived quickly and packaged well with care instructions, the soil/Substrate is a gorgeous dark color with a great healthy smell, and I am a very satisfied customer. I won't make my own anymore, it is worth purchasing this product for amazing results!

    Can NEVER go wrong with Midwest Grow Kits

    Rating:
    Pros:
    • Top quality
    Cons:
    • None for me
    MWGK is the best!! I’ve been ordering supplies from Midwest Grow Kits For over three years now and have never been disappointed with their substrate jars and the 5 pound compost bags. I always get great healthy flushes due thier top line supplies. I’ve checked other websites and MWGK has the best prices too by far. Thanks MWGKTeam it shows you love what you do.

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