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Mycology Basics - Ultra-Fine Lab Grade Gypsum for Mushrooms, Food Grade, No Additives - Packaged in HEPA filtrated Enclosure for Sterility (1.25 lbs)

  • Based on 115 reviews
Condition: New
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$14.95 Why this price?
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Availability: In Stock.
Fulfilled by Amazon

Arrives Wednesday, May 22
Order within 19 hours and 29 minutes
Available payment plans shown during checkout

Size: 1.25 lbs


Features

  • Fine powder - no more chunks, lumps or garden style gypsum pellets
  • Packaged in HEPA filtrated enclosure for sterility - no contamination
  • Better PH Buffering - our fine powder disburses more easily, creating more uniform PH buffering in your substrate
  • Great for Grainspawn - super-fine gypsum is best for grains, providing a uniform coating your Myc will love

Brand: Mycology Basics


Item Weight: 1.3 Pounds


Item Form: Powder


Coverage: Hepa


Package Dimensions ‏ : ‎ 8.82 x 5.71 x 2.6 inches; 1.25 Pounds


Item model number ‏ : ‎ MycoBasics-Gyp1


Date First Available ‏ : ‎ March 25, 2023


Manufacturer ‏ : ‎ DRMyc


Country of Origin ‏ : ‎ USA


Best Sellers Rank: #11,361 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #11 in Chemical Standards


#11 in Chemical Standards:


Customer Reviews: 4.8 4.8 out of 5 stars 115 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, May 22

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews


  • Highly recommend
Size: 1.0 lbs
This gypsum I highly recommend for mushroom growing. I have had absolutely no issues with my millet clumping in a ball after pressure sterilization and no contamination at all from using this one.
Reviewed in the United States on September 16, 2023 by Nicole Rodriguez

  • It's a bag of gypsum.
Size: 1.0 lbs
Yup. It's gypsum. Looks like white flour. Keep it away from your baking supplies, otherwise your wife's cookies might take on a strange texture.
Reviewed in the United States on September 8, 2023 by Jason Martin

  • Cures blossom end rot on tomatoes
Size: 1.0 lbs
I was getting BER on my tomatoes and researched cures. Sprinkled 1/4 cup of this in each tomato pot and watered in at dusk. BER was gone within 2 days and I feel like a mad scientist :)
Reviewed in the United States on August 27, 2023 by N

  • Good product
Size: 1.0 lbs
Good quality, will buy again when I run out.
Reviewed in the United States on September 8, 2023 by Greg cooley

  • Great substate
Size: 2.5 lbs
Great for preventing clumping
Reviewed in the United States on September 5, 2023 by Jacob U.

  • Good sized bag, quality product.
Size: 1.0 lbs
Fine, powder consistency gypsum, for a decent price. Can’t beat it!
Reviewed in the United States on August 5, 2023 by Jaclynn Cassiday

  • Seems to be good stuff.
Size: 1.0 lbs
Arrived as promised and in good condition. Seems to be as described, no none issues. I wish that the package sealed back together better when not in use, but nothing another zip lock bag can't handle.
Reviewed in the United States on July 4, 2023 by Michael Hollestelle

  • The G in CVG
Size: 1.0 lbs
My mushroom crop thrives when using this with coco coir & vermiculite
Reviewed in the United States on July 26, 2023 by Patricia A Hart

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