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      Sterile Substrates
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      • Sterile Substrates

      Sterile Substrates

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      OPTIMA Organic Grain Bag - Sterilized with Injection Port
      Vendor:Bruise Blue

      OPTIMA Organic Grain Bag - Sterilized with Injection Port

      $9.99
      P³ ALL-IN-ONE BAG
      Vendor:Bruise Blue

      P³ ALL-IN-ONE BAG

      $14.99
      ‘ShiitBag’ Manure-Based Sterile Bulk Substrate
      Vendor:Bruise Blue

      ‘ShiitBag’ Manure-Based Sterile Bulk Substrate

      $9.99
      CVG COCO • VERMICULITE • GYPSUM Sterile Bulk Substrate
      Vendor:Bruise Blue

      CVG COCO • VERMICULITE • GYPSUM Sterile Bulk Substrate

      $9.99

      WE BAG AND COOK SHIT SO YOU DON'T HAVE TO

      BEST IN CLASS SUBS, BULK, GRAIN, SUPPLIES FOR CHEAP

      Looking to scale without bleeding cash? Bruise Blue delivers best-in-class subs, bulk, grain, and supplies for cheap—sterilized right, tuned for fast colonization, and priced for production. We’ve been growing mushrooms for decades, dialing recipes in real rooms with real timelines, so every bag reflects hard-won, hands-on experience. Load up with true bulk discounts, get it shipped fast in plain boxes, and run clean from bag to tub. No fluff, no markup games—just reliable gear that moves your numbers the right direction.

      Affordable

      Sterile, rock-solid substrates at the lowest cost per run, with bulk discounts that actually move your margins

      Fast Shipping

      Fast out, fresh in—orders move in 1–2 business days, packed tough so your bags land ready to go.

      Quality Guaranteed

      We stand by our quality 100% If it isn’t clean, consistent, and ready to run, we replace it—no BS, no runaround.

      Secure payment

      Encrypted checkout, plain-box packaging, and low-key labels—your payment stays secure and your delivery stays discreet.

      Bruise Blue

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      © 2025 Bruise Blue Product & Packaging Disclaimer: Bruise Blue cannot and does not promise that its products will yield any particular results for you. Bruise Blue will not be liable to you or to any other person for any damages of any kind in connection with the use of our products, and we make no warranties of any kind, including warranties of merchantability or fitness for a particular purpose, relating to or arising from the use of our products, except as required by law. Bruise Blue's products shall only be used for lawful purposes. Powered by Shopify
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