Mushroom Grow Bags

Grow mushrooms like never before in our high-quality mushroom grow bags. 

We've perfected the formula for consistent results, hand-packing every bag to ensure the grain spawn and compost don't mix, and sealing it before sterilization to ensure no contamination risks at all. 

Start growing your favorite spores today with our mushroom growing kits and grow bags; shop below and receive free US shipping on your order.

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Discover High-Quality, All-In-One Mushroom Grow Bags


✔ A Superior Result - We use temperature probes to monitor core bag temperature during sterilization to verify that we reach the correct time/temperature targets.


✔ Consistency Everytime - We ensure the grain and substrate are separated to facilitate easy monitoring and faster colonization. This is unlike many large suppliers, who mix the grain and substrate to create a homogeneous mixture. 

 

✔ Sealed Before Sterilizing - Through our proprietary process, we seal the bags before sterilization to ensure no contamination. Shelf-stable food products are made the same way, which guarantees product integrity.


✔ Meticulous Attention To Detail - We hand-fill every bag, carefully packing the ingredients and neatly folding the bag to prevent premature mixing. We place these in a perfect-size box and protective liner bag for further protection.


✔ Highest Quality Ingredients - We source local organic ingredients from USA businesses and prepare them in-house to ensure consistency in every batch. 


At Mushroom Spawn Store, we've created the perfect mushroom-growing product guaranteed to give you superior results every time. Made from the highest-quality organic and food-grade materials, our Mushroom Grow Kits and Bags are designed to make your life as easy as possible. 


Our products are designed ideal for both beginner and expert mycologists. Standout features include:

  • Premium substrate blend formulated for dung-loving mushrooms
  • Highly durable 10mm seal
  • Stored in Unicorn bags, which are made in the USA and far superior to Chinese-made bags, which are easily tearable and use unvalidated filter patches.
  • Validated .2 micron filter patch, allowing the mycelium to breathe while keeping contaminants out.
  • Self-healing injector port for easy injection of spores or liquid culture.
  • Perfectly hydrated Organic grain, separated from the substrate for faster colonization & easy monitoring.

 

Magic Mushroom Grow Bags For Sale At Affordable Prices

At Mushroom Spawn Store, we supply a wide range of products designed to give you the best results possible, with mushroom supplies including grow bags/kits, standalone mushroom substrates and sterilized grain spawn, and Unicorn bags with pre-installed injector ports.


Customer satisfaction is our top priority, and we take pride in having hundreds of happy customers across the United States. With nearly 20 years of experience in mushroom cultivation, our knowledgeable team is on hand to guide you through every stage of the growing process, from setup to harvesting.


Feel confident in your mushroom cultivation journey with our products and expert support. Contact us today via email at customer.service@mushroomspawnstore.com or call us at 248-896-1444.
 

Frequently Asked Question

The difference between the two is simply the size; the all-in-one grow bags are ideal for beginners as they come with everything you need to see superior results. The kits, which come with four bags, are ideal for more experienced mushroom growers who might be growing multiple strains at the same time.

We meticulously hand-pack every bag using the highest-quality grain spawn and substrate to ensure the two are separated within the bag. Once packed, we carefully seal the bags to maintain a controlled environment. They are then subjected to a thorough sterilization process to eliminate potential contaminants and create the best environment for mushrooms to grow.

In short, mushroom grow bags are significantly better than Uncle Ben's Tek. Uncle Ben's Tek carries a high risk of contamination, longer cultivation time, and complex steps and ultimately has a significantly lower success rate. On the other hand, our mushroom grow bags have a very low risk of contamination as they are sealed and sterilized. They also colonize quickly, produce consistent high-quality results, are simple to grow mushrooms in, and have a high success rate. If you're still not convinced, check out our blog comparing the pros and cons of uncle bens tek… spoiler alert… the cons significantly outweigh the pros.

We send all our products discreetly in plain brown boxes, which typically arrive in 3-5 business days. You can also upgrade to USPS Priority shipping, which will get you your product within 1-3 business days. Please visit our shipping policy page for further details.