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Premium Organic Spawn Bags

Spawn Bags are the next generation in mushroom growing. They are the perfect add-on to any of our mushroom kits! Each bag can produce the same as 8-10 jars! Once thought to be a more advanced method for growing mushrooms, we have designed our bags to be much more grower friendly than any others we've seen and tested! All of our spawn bags include a self-healing spore injector port.

The Original Rye Spawn Bag

Midwestgrowkit's Organic Rye berry spawn bags are the most popular add-on to any of our kits, simply inject 3-5 cc's of your favorite grain or dung loving spores into the self-healing injector port and incubate right next to your jars!

They have been one of our top sellers for the last few years! If you want to grow mass quantities, our amazing Rye spawn bags are an easy solution! Our 3 pound classic spawn bags are some of the biggest you can find!

Each bag contains 3 pounds of nutrient-enhanced organic rye berries and a mixture of distilled and mineral water fortified with gypsum, diammonium phosphate (a fertilizer/nutrient to provide an adequate amount of nitrogen, and correct PH) and other nutrient enhancing herbs and minerals. Each spawn bag has a built in filter patch for gas exchange and a self-healing injector port for effortless and error proof inoculation.

These bags are guaranteed to arrive to you 100% sterile and ready to inoculate! Each spawn bag is professionally sealed and pressure sterilized at 15 PSI for 120 minutes.

Our Spawn bags come with their own step by step photo guide.

We also include a separate step by step guide for advanced growers on bulk spawn growing.

1 Rye Spawn Bag

2 Spawn Bags - $20

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Premium 5-Grain Spawn Bags

Midwestgrowkit's is excited to present our new Organic 5-Grain Spawn Bags. Our team has spent over 14 months testing different recipes and combinations of mushroom loving grains and our proud to bring you what has been called the “best spawn bags available” today. Over the course of 10 months we've sent these new bags to many of our best customers for review and the feedback we have received has been just been phenomenal!

These new spawn bags are one of a kind and not available anywhere else. The size, quantity and potency of the mushrooms these bags produce are simply amazing!

While the exact recipe is our secret, we start with organic rye berries as our base and add 4 other specially chosen grains to the mix. The combination of several small grains helps provide more surface area and inoculation points which speeds up colonization times by 30%! Each 3 pound bag contains our unique blend of nutrient enhancing herbs and minerals and a mixture of distilled and mineral water fortified with gypsum, diammonium phosphate (a fertilizer/nutrient to provide an adequate amount of nitrogen, and correct PH). Each bag has a built in filter patch for gas exchange and a self-healing injector port for effortless and error proof inoculation.

These bags are guaranteed to arrive to you 100% sterile and ready to inoculate! Simply add 3-5 cc's of your favorite grain or dung loving spores! Each spawn bag is professionally sealed and pressure sterilized at 15 PSI for 120 minutes. Our Spawn bags come with their own step by step photo guide.

We also include a separate step by step guide for advanced growers on bulk spawn growing.

5-Grain Spawn Bag

2 Five-Grain Spawn Bags - $25

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Deluxe Spawn Bag Growing and Incubator Kit

  • Dual Container Growing, Incubating Chamber System 20" X 15" X 14"
  • 2 Premium 5-Grain Spawn Bags (3 pounds each)
  • Digital Thermometer with Hygrometer/humidity gauge
  • Electric 200W Submersible Aquarium Heater with adjustable thermostat
  • Electric Air Pump, ultra silent
  • Silicone Air filtration hose with HEPA filter built in
  • Heavy duty Electric timer with 24 on/off settings per day
  • 2 Growing lights, one incandescent and one LED
  • 1 Gallon of Perlite- Fine, imported, specially formulated horticulture grade
  • 1 Quart of Premium Vermiculite
  • Hospital grade Latex Gloves
  • Adjustable Spray Bottle
  • Alcohol swabs
  • Easy to follow Spawn Bag growing guide with step by step instructions. Includes our secret tips, tricks and hints that other grow guides leave out. Includes how to incubate, how to fruit directly from the cake, how to convert your kit into a bulk monotek growing tub, and more!
Midwest Grow Kit's Deluxe Spawn Bag Growing and Incubator kit includes everything you need to start your spawn bag growing experience! Our Deluxe Spawn Bag kit gives you the option to grow and fruit them just like the jars! You can also break them up after they are fully colonized and mix with a casing medium like Coco Coir and convert the kit to a bulk growing system. The combination of our specially formulated 5-Grain Spawn bags, self-healing injector port and our easy to follow growing guides makes this kit the easiest way jump in to the next generation of mushroom growing no matter what method you choose! While growing in jars will always be the easiest and quickest method of growing mushrooms, spawn bags are capable of growing huge amounts of mushrooms.

Our Deluxe Spawn Bag kit is completely automated! Perfect temperature and humidity levels are easily achieved for each stage of the process. This kit can incubate up to 4 spawn bags at once or up to 24 of our ˝ pint substrate jars. This kit includes our 5-Grain spawn bags which are one of a kind and not available anywhere else. The size, quantity and potency of the mushrooms these bags produce are simply amazing!

Start learning now! Instant access to our step by step detailed grow guide is now automatically available to you right after checkout!

$94.00 w/ FREE SHIPPING


Deluxe Spawn Bag Growing and Incubator Kit

Deluxe Spawn Bag Growing and Incubator Kit - $94

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Midwest's Select Bulk Casing Mix - 5 pounds

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. Our premium 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 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 Monotek, this is 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)

Midwest's Select Bulk Casing Mix - 5 pounds

Midwest's Select Bulk Casing Mix - 5 pounds - $20

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Premium Bulk Spawn Growing & Casing Kit

Turn your fully colonized spawn bags into a Bulk harvest fast and easy using our Premium Bulk casing kit. Growing mushrooms in bulk has never been easier! Once you have mastered growing in jars, this is the next step in growing! Simply break them up and mix with our perfected Select Bulk casing mix in the grow chamber provided. Typically this is an advanced growing method, but we have made growing easy by providing you with step by step instructions & everything you need to turn your grow into a blanket of shrooms! This kit is designed with 1" pre-cut polyfill holes for high rate of gas exchange needed. Our specially formulated select casing mix is pre-mixed and pasteurized with the perfect water content right out of the bag. It will out-grow any basic 50/50 coir & vermiculite recipe! Save on shipping now, sealed casing bags can be stored in the fridge/freezer for up to 3 months! This kit is designed for use with two fully colonized spawn bags; 12 colonized jars can also be substituted.

We use the best ingredients in our casing mix including coir, which is one of the best bulk mediums to grow mushrooms in. It's naturally resistant to mold and bacteria and mushrooms absolutely love it! There are many different brands, styles and textures of coir sold for many different uses. We use Coco Coir the best producing variety and brand available for growing mushrooms.

This kit includes:
  • Custom designed Growing Chamber with lid & 1" pre-cut polyfill holes 20" X 15" X 12"
  • 10 Pounds of our Select Bulk Casing mix, premixed and pasteurized
  • 3 Quarts of Vermiculite
  • 6 oz of superfine Polyfill
  • 15" of Micropore Tape
  • Spray Bottle
This kit can be used alone or easily integrated with our Ultimate or Mega Grow Kit for providing greater temperature and humidity control.
Premium Bulk Spawn Growing & Casing Kit

Premium Bulk Spawn Growing & Casing Kit - $50

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Coir

Coir is one of the best bulk mediums to grow mushrooms in. It's naturally resistant to mold and bacteria and mushrooms absolutely love it. When wet it expands to over 2.5 cubic feet. There are many different brands, styles and textures of coir sold for many different uses. We have hand selected Coco Coir, the best producing variety and brand available for growing mushrooms.

Coir

1 brick (650 grams) of Premium Coco Coir - $10

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Monster Bulk Growing & Incubator Ecosystem
Mega Mushroom Growing Kit Looking to grow in massive bulk quantities? Look no further. We strategically assembled the largest indoor growing operation ever! Midwest Grow Kit's Monster Mushroom Ecosystem gives you the speed, quantity and bulk results you're looking for!

This Monster sized operation incorporates all aspects of mushrooms growing in one easy to use system with plenty of extra space to expand your grow even further! This system incorporates growing in jars for fast easy mushroom production and Bulk casing method using our amazing spawn bags for huge results!

Click here to learn more!


$329 w/ Free Shipping!


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