Dry Bulk Substrate (Coco Coir, Vermiculite, Gypsum)

(7 customer reviews)


This is dry ingredients to make nine pounds of CVG bulk substrate. This is enough for two Boomer Shroomer Monotub mushroom grows. All you need is a 5 gallon bucket with a lid and 16 cups of boiling water. Included is 500 grams of Coco Coir, 500 grams of Vermiculite, and 100 grams of Gypsum.

Bulk Substrate Ingredients:
500 grams Coco Coir
500 grams Vermiculite
100 grams of Gypsum

Needed At Home:
16 Cups Boiling Water
5-gallon bucket with lid

First add coco coir, vermiculite and gypsum to a 5-gallon bucket. Mix all the dry ingredients together in the bucket before you add the boiling water. Next, boil 16 cups of water, then carefully pour the boiling water into the 5-gallon bucket. Close with a tight sealing lid. Let it sit to hydrate and cool for approximately 24 hours. Ideally keep insulated to aid the pasteurization process. Once room temp, double check to make sure it is at field capacity and it is ready to go.

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Additional information

Weight 3 lbs

7 reviews for Dry Bulk Substrate (Coco Coir, Vermiculite, Gypsum)

  1. Molly

    Satisfaction :

    Perfect little kit. Love Boomer Shroomer!

  2. Julia M. (verified owner)

    Satisfaction :

    Awesome product, fast shipping, well packaged and easy to use! On top of all that, becoming a Boomer Shroomer customer means you have somewhere to go if you have a question about your grow. I couldn’t be happier with my purchase!

  3. t (verified owner)

    Satisfaction :

    I am impressed with product purchase because I am having results. Customer service is great! I can actually talk to a live well informed, kind, caring human being. Product is packed well and shipping is fast. I am new to shrooming and have found Boomer Shroomer’s videos to be so helpful. Additional resources suggested on this website are credible.

  4. Derek (verified owner)

    This is my go-to for supplies, tutorials and guidance. Customer support is diligent and very friendly. I love the easy to follow instructions the send. They always hook me up with cool stickers. I have a 100% success rate with everything I’ve ordered. Customer for life here. Thank you!

  5. Charles (verified owner)

    I’ve searched around, tried different places and things, but always end up here. Ordering is quick and easy, shows up when it’s supposed to. Overall makes the most sense and the products are incredible. No more shopping around for me.

  6. Will (verified owner)

    Satisfaction :

    This company is amazing. I’m extremely satisfied with the products. The packaging, instructions,and the little extras thrown in are really cool. I’ve recommended B.S. to all of my friends. Keep up the good work!!!!

  7. John Lewis (verified owner)

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