Out grow mushroom bags

Out grow mushroom bags DEFAULT

Mushroom Grow Bags

Mushroom Grow Bags

Mushroom grow bags are essential tools when you cultivate gourmet mushrooms. Growers can use them not only for growing but also for processing and preserving large containers of your favorite types of mushrooms.

Advantages of Using Mushroom Bags

Top-of-the-line mushroom grow bags are ideal for growing mushrooms and exchanging fresh air for several reasons. You can easily create holes that allow your mushroom cultivation to develop in a variety of different directions instead of simply upwards, which allows the fungus to grow naturally. With bags, it is also easier for growers to monitor colonization time and to bring their crops to harvest when fully colonized. Growers will also be able to mix the bag during the process.

When working with mushrooms, grow bags are ideal for using rye berry substrates that many growers love for mushroom cultivation. Other advantages that grow bags have is that they use micron filter patches that facilitate gas exchange.

Mushroom Processing

In addition to using mushroom bags as part of mushroom grow kits, these bags can also withstand the high temperatures common in processing, making them great for use with pressure cookers and other appliances.

Shop our selection of mushroom grow bags today! We offer many different sizes and types of grow bags to fit every need.

Mushroom grow bags are essential tools when you cultivate gourmet mushrooms. Growers can use them not only for growing but also for processing and preserving large containers of your favorite types of mushrooms.

Sours: https://www.out-grow.com/mushroom-grow-bags

How to: Step-By-Step Mushroom Grow Bag

Inoculating wooden logs with mushroom spores is an inexpensive and low maintenance growing method, but availability of enough logs and limited space to keep them cause people to look for a different solution. Mushroom grow bags are a product that help grow large numbers of mushrooms in a more compact setting. They are sterile plastic bags that have a filter port so that clean air can be exchanged with the growing mycelium. Grow bags can be delivered with sterile growing substrate already sealed inside the bag, or empty and waiting to be filled with growing substrate.

  1. Put on latex or nitrile gloves and a breathing mask so that as you handle the grow bags, so they remain as clean as possible. Spray a disinfectant, like Lysol, into the air to further disinfect the area where you will work. Wipe your gloves clean with alcohol wipes.

  2. Open the mushroom grow bags and fill with your chosen growing substrate. Place the bags in a pressure cooker without packing too tightly, and heat for 3 hours so that the heat is able to fully penetrate the growing medium.

  3. Allow the closed pressure cooker to cool down to room temperature so that it can be safely handled.

  4. Seal the bags immediately upon opening the pressure cooker so that as little outside air as possible can enter the growing medium and possibly cause contamination.

  5. Wait for the sealed bags to cool for 12 hours, and place a piece of packing tape on the side of the bag opposite the filter port.

  6. Inject your mushroom spawn or liquid culture by pushing the needle through the packing tape and directly into the growing substrate, instructs Shroom Supply. This can be done in several places if you want to decrease the time it takes the mycelium to completely fill the substrate.

  7. Cover the injection hole with another piece of tape to reseal the bag.

  8. Move the mushroom grow bag to an area with indirect or fluorescent lighting. Research whether your specific mushroom species prefers cooler or warmer temperatures, and keep the grow bag within 4 degrees of the mushroom's preferred range, advises Mushroom Adventures.

  9. Monitor the bag to ensure the substrate does not dry out if kept at warmer temperatures. If the substrate does dry out, inject a small amount of filtered water with a syringe and reseal the hole with tape.

  10. Harvest the mushrooms when they are size you desire. Mushrooms can be eaten at any stage, but always pick them by the time they are fully mature or they will rot in the bag. Mushrooms are fully ripe when the cap is open and the thin covering over the gills begins to tear. Depending on the species of mushroom, it can take several weeks to months for the mushrooms to begin fruiting.

  11. Things You Will Need

    • Latex or nitrile gloves

    • Breathing mask

    • Disinfecting aerosol spray

    • Alcohol wipes

    • Growing substrate

    • Packing tape

    • Syringe with needle

    • Mushroom spawn

Sours: https://homeguides.sfgate.com/to-stepbystep-mushroom-grow-bag-104227.html
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Grow bags are made of polypropylene plastic designed to withstand high temperature. The plastic is durable, flexible, clear enough to make monitoring growth easy, and relatively low-cost. There are bags being developed using “greener” materials, but none of them have come to market yet.


The reason temperature resistance is important is that both the substrate and the inside of the bag must be sterilized before inoculation. A convenient sterilization method is to stick the bag and its contents in an autoclave—except that most plastic bags would melt in such conditions. “Autoclavable” just means that the bag can be safely used in an autoclave. An autoclave is a machine that uses steam under pressure to kill bacteria.

Filter Patch

A filter patch is a small area of the bag that allows air in through an extremely fine mesh. The mesh is so fine that airborne bacteria and the spores of unwanted fungal species (weeds) can’t get through. Unlike a vegetable garden, a mushroom grow set-up can’t be weeded; the weeds have to be kept out from the beginning or the batch must be abandoned. Mushroom grow bags needs filter patches because while it is important to keep out weeds, the mycelium must be able to breathe (another thing, besides the need for food, that fungi have in common with animals).


A gusseted bag has folds in the sides so that a large, very roomy bag can still fold nice and flat when not in use. The mushrooms don’t care whether grow bags are gusseted, but the feature makes things easier for growers be organized.

In a hurry? Here is a list of the Best Mushroom Grow Bags on the Market.

Why Use Mushroom Grow bags?

It’s possible to grow mushrooms without bags. Of course, some substrates, such as logs, don’t need and can’t fit in bags, but even substrates often used with bags, such as coffee grounds or sawdust, don’t actually require them. Alternatives include wide-mouth glass jars and plastic buckets and tubs (these are sometimes available used from restaurants at no cost), provided the containers in question can be sterilized and fitted with air filters[ii]. There are also low-temperature sterilization methods and ways to grow mushrooms that don’t require sterilization at all—such methods dramatically broaden the range of set-ups that can be used.

Some growers seek to avoid grow bags specifically to avoid creating so much plastic waste, since the bags are generally single-use. There may be other reasons for avoiding grow-bags, too.

However, grow bags offer certain features that are difficult to access otherwise:

  • It’s easy to cut holes in a bag, allowing the fungus to fruit out in all directions, instead of just upwards. The same can’t be said of glass.
  • The clear plastic makes it easy to monitor the mycelium as it colonizes the substrate. With buckets, it’s harder to tell when colonization is complete and when the fungus is ready to fruit.
  • The spent substrate—or the fully colonized spawn, in the case of spawn bags—is easy to remove from a bag. Because the mycelium tends to hold the substrate together in a clump, getting the clump out of a jar or even a bucket can be a real challenge.
  • The flexible bag makes it easy to mix the spawn thoroughly through the substrate; just squeeze. The same can’t be said of a hard-sized container.
  • Start-up costs are low, even for large operations, since bags are cheap.

In a hurry? Here is a list of the Best Mushroom Grow Bags on the Market.

What Are Mushroom Grow Bags Used For?

Mushroom grow bags are used for growing mushrooms, that much is clear, but there are multiple stages to the mushroom-growing process, and grow bags can be used at several of them.

Spawn Bags

“Spawn” is material growers use to multiply up the amount of mycelium they have quickly, so as to be able to grow a much larger crop[iii]. Rye and other grains are popular spawn media, though there are others. Generally speaking, the procedure begins with the germination of spores on a Petri dish of nutrients, where a small, baby mycelium begins to grow. The baby in the dish is then transferred to a larger quantity (up to several pounds) of sterilized spawn substrate. Once the spawn is fully colonized, it can be used to inoculate the substrate used for growth and fruiting—the spawn can also be used to inoculate more spawn. Many people buy bags of spawn ready to go, but some growers produce their own.

Because spawn needs sterile conditions and must be monitored closely, clear polypropylene bags are a good option.

Fruiting Blocks

A fruiting block is a unit of some mushroom substrate that does not naturally hang together, such as sawdust. The grow bag serves both to neatly contain the material and to keep out weed spores and other contaminants. Once the mycelium has fully colonized the block, weeds can no longer gain a foot-hold and the container can be opened to allow the fungus enough room and air to fruit. Again, the clear bag makes it easy to see whether colonization is complete, and the plastic can be cut open to allow more fruiting without risking damage to the mycelium below.

Fruiting in the Bag

It is also possible to keep the bag closed during fruiting, though in this case the bag must be only partially filled to give the mushrooms plenty of room to grow. The bag then serves as a miniature fruiting room where humidity and other factors are easy to control. The trick is to open the bag frequently; the air filter alone doesn’t allow enough air, and the mature mycelium, like an animal in a similar situation, would gradually run out of oxygen if kept too enclosed.

Allowing the fungus to fruit entirely inside the bag means not needing a climate-controlled room. For some species, there is an added benefit. Even with opening the box often, there will be less oxygen and more carbon dioxide, in a bag than out of it, and the difference can sometimes force mushrooms into startlingly different growth forms.

Choosing the Right Mushroom Grow Bag

Not all mushroom grow bags are exactly the same, but choosing the right bags for a given operation means paying attention to just three variables: filter size, bag size, and bag thickness.

Filter Size

Filter sizes vary. That is, the size of the holes, or pores, in the filter varies, usually from 0.2 micron to 5 microns. The smaller the pore size, the less can get through. That means fewer spores and other contaminants, but it also means less air. The key is to strike workable a balance between the need for air and the need for protection. For most purposes, the filter should be no larger than 0.5 micron.

Bag Size

There is no hard and fast rule about bag size. Bags that are too small are inefficient; bags that are too big are inconvenient—but what sizes are too big or too small varies from grower to grower. Points to consider include the size of the sterilizer and the size of the hoped-for crop. Above all, how big will a bag of a given size be when full?

A large bag, one that is eight by five inches across and 18 inches tall, can hold about five pounds of inoculated substrate.


The thicker the plastic, the stronger the bag—but the stronger bags are also more expensive. The normal range is between 2.2 mil to 4.0 mil. Growers can start off with bags at the thin and inexpensive end of the scale, and if the bags rip too often (a ripped bag is vulnerable to contamination), step up to something thicker. The occasional rip is not considered a problem, just part of the cost of doing business.

How to Seal a Mushroom Grow Bag

Grow bags must be sealed after being inoculated and the bags themselves don’t come with seals. Wire ties and zip ties both work, but the time necessary to apply these ties, though brief on a per-bag basis, adds up for people who have to seal a lot of bags. Large-scale growers buy impulse sealers and find the greater expense is worth it.

Can I re-use a Mushroom Grow Bag?

Yes, mushroom grow bags are reusable, but not necessarily as mushroom grow bags. The plastic gets weaker with use, and many growers do not want to risk a bag coming apart—or developing tiny holes through which weed spores could pass—mid-cycle. But the bags can be reused in other contexts. For example, material that needs to be sterilized and then transferred to some other container can be boiled inside an old grow bag. Bags can also be used for making straw logs. Some growers are even experimenting with processing the material into mushroom substrate; there are fungi capable of eating certain plastics.

Polypropylene is also closed-loop recyclable[iv], meaning the recycled plastic can be used for the same types of products (including mushroom grow bags) as the virgin plastic. That is not true of all plastic types. Growers concerned about the issue should research the environmental impacts of several different grow set-ups to determine which is best in their situation.

[i]       Mushroom Grow bags: The Ultimate Guide, accessed on 10 September, 2019.

[ii]      The Permies website, accessed on 10 September, 2019.

[iii]     Bradley, K. (2015). Mushroom Cultivation: Making Grain Spawn.  Milkwood. Nov. 23, 2015.

[iv]    LeBlanc, R. (2019). An Overview of Polypropylene Recycling. The Balance Small Business. May 9, 2015.

Sours: https://healing-mushrooms.net/Mushroom-Grow-Bags
The easiest way to grow oyster mushrooms - Part 2 - Bagging

Manure Based All in One Mushroom Grow Bag ™

  • Outgrow is a class act, and I simply love this product. My time is worth money. No more pressure cooking is a blessing. I haven't had one that failed yet. Thank you outgrow.

    Review byTravis B.

    Posted on

  • From the moment you open the box from Out-Grow it's obvious that you received quality. The grow bags are shrink-wrapped and tied up so that they're in pristine, sterile condition. Mycelial network developing after only 5 days. I get the sense that though these bags are compact, their yield will be large in proportion. Thanks for the quick shipment and great product! I can't wait to try out all the variations on the All-in-One bags :-)

    Review byJoshua Hamer

    Posted on

  • Over the past year or so this company has been a consistent provider of superior products, quick shipping times, and absolutely incredible customer service. Out-Grow has become synonymous with exceptional quality, and is the only company I recommend for mycological pursuits. As for this particular product I can say with fervor that it is ideal for beginners or anybody who wishes to make their lives easier.

    Review byPatrick Kochan

    Posted on

  • Over the past year or so this company has been a consistent provider of superior products, quick shipping times, and absolutely incredible customer service. Out-Grow has become synonymous with exceptional quality, and is the only company I recommend for mycological pursuits. As for this particular product I can say with fervor that it is ideal for beginners or anybody who wishes to make their lives easier.

    Review byPatrick Kochan

    Posted on

  • Excellent customer service, prompt shipping, and high quality product. Second order from this company and they have made me happy once again, the free product I received as a gift didn't hurt either. Thank you Out-Grow.

    Review byPatrick Kochan

    Posted on

  • Like what I am seeing but no growth yet but it's only been since the 14th.

    Review byJeffrey Smith

    Posted on

  • OutGrow not only produces quality products from a professional stand point, but also has the best customer service I have seen from any other company. The all in one grow bag is so easy and works very well! A very nutrient product that produces very healthy fruit. Garuenteed to have no contamination and is delivered 100% sterile. I will use out grow for all my basic and professional needs from here on! Thanks OutGrow and Mike!

    Review byWhitney Bell

    Posted on

  • I ordered from this company after reading a lot of positive reviews! I now have my own positive experience to write about!

    Not only are these products superior to anything I've used in the past, but the price, shipping time and amazing customer service gives this company a rating of 5 plus stars! I will ONLY order the materials I need from this company! Even if the materials were readily available near me, I would save the gas and order online, since the delivery time is so quick, and I know I'm getting top of the line products!

    I wanted to mention that I received an extra product in my package, FOR FREE! It's very rare to have anyone appreciate your business that much!

    Thank you out-grow, for the great service, and for making my life a lot easier!

    Review bychad caso

    Posted on

  • Way awesome so far took 2 days to ship ! Ill be back with flush reports , but I'm sure everything is gonna work out great! Thanks for the speedy service!

    Review bywilliam tanner

    Posted on

  • Sours: https://www.out-grow.com/manure-based-all-in-one-mushroom-grow-bag-8482

    Mushroom out bags grow

    The best mushroom grow bag

    By Jackalyn Beck


    Sep 14, 2021 at 3:22 PM

    Small mushroom grow bags can easily fit into a pressure cooker, making them easy to sanitize at home.

    Which mushroom grow bags are best?

    If you grow mushrooms, odds are you’ve heard about their convenience and durability. Not only are they cost-efficient, but they are also easy to use, making them perfect for growers of any skill level.

    The right grow bag for you should fit your unique needs and budget. If you want a high-quality substrate you can use to grow any kind of mushroom, look no further than the Boomr Bag Substrate Blend.

    What to know before you buy a mushroom grow bag

    How are mushroom grow bags different from mushroom grow kits?

    Mushroom grow bags are bags, typically made out of plastic, used to grow mushrooms or start mycelium. They may include substrate, the medium on which the mushroom will grow, but are traditionally empty.

    While they may include substrates, they do not come inoculated unless specified. If you are a beginner, you may be looking for mushroom grow kits. Kits typically come with a bag and substrate and are inoculated, but tend to cost more.

    How many mushroom grow bags will I need?

    Because of their low cost and ease of use, mushroom grow bags are often used by professionals. But, for the same reasons, they can be used by people of any experience level.

    If you plan on using grow bags as your standard grow method, it is important to consider their long-term cost and contribution. Buying in bulk is one of the best ways to do this, as it is cheaper. But if you don’t plan to grow mushrooms often, it is better to buy them individually.

    What substrate should I use?

    If you are new to growing mushrooms, you might not have thought about substrates yet, but they are a key piece of growing mushrooms.

    Before you buy a mushroom grow bag, figure out what substrate you will use. This will help you decide if you want the bags to be pre-filled or empty.

    Mushroom grow bag features

    Size of a mushroom grow bag

    From large hanging bags to small grow blocks, there are many options for grow bag sizing. The volume of bags can make a big difference since it determines how much substrate they hold and, in turn, how many mushrooms they can grow.

    Choose your grow bag’s size based on how much you want to produce. Also be mindful of how much mycelium you are using, since it will take longer to inoculate large amounts of substrate.

    If you are new to growing mushrooms, start with a smaller size. A bag that can fit around 5 pounds of substrate is a good starting point since it is easy to manage.

    When deciding what size you want, also consider your sterilization method. If you are using a small container like a kitchen pressure cooker to sterilize your materials, you will need to get bags that will safely fit.

    Thickness of a mushroom grow bag

    Quality grow bags will not tear during normal use, but cheap ones might. 2.2 millimeters is the thinnest you should go for standard grow bags.

    Thicker grow bags are a good option but cost more. If you have a small operation and handle each bag with care, thinner bags are a suitable option. On the other hand, if you tend to be rough with your grow bags, go with a thicker material.

    Mushroom grow bag material

    While there are some biodegradable mushroom bags out there, plastic bags are the most common and economical. Mushroom grow bags are almost always made out of polypropylene plastic.

    Many people like the disposability of them because it makes management and sanitation easier. If you are trying to go low-waste, you might consider using a plastic-free method.

    Mushroom grow bag filters

    Grow bag filters have a filter micron rating to tell you how big the holes in the filter are. The filter plays a key role in keeping the spawn safe from outside contaminants, so small micron ratings are ideal.

    Mushroom grow bags vary a lot in price, depending on if they are filled with substrate or not. Empty bags can cost as little as 50 cents each. Bags pre-filled with substrate can be as much as $40 per bag.

    Are mushroom grow bags worth it?

    A. Yes, mushroom grow bags are worth the price and effort. Regardless of your experience level, grow bags offer a lot of advantages over other mediums. Mushroom grow bags are inexpensive and easy to use while also being simple to sterilize and monitor.

    Can you reuse a mushroom grow bag?

    A. For sanitation, it is best to use new grow bags each time. However, depending on the status of the substrate, you can use water to "shock" the bag and trigger new growth into a second flush. Be wary of re-sanitizing and using grow bags multiple times, as they lose integrity with each use.

    Which mushroom grow bag should I get?

    Best of the best mushroom grow bag

    Boomr Bag Manure Based Bulk Substrate Blend: available at Amazon

    Our take: These high-quality bags come with a scientifically blended substrate made to promote large blooms.

    What we like: This bag holds five pounds of substrate, making it perfect for small production. Mushrooms can also be grown directly in the bag or using other methods, like the monotub.

    What we dislike: The high priceis difficult to justify for most growers.

    The best bang for your buck mushroom grow bag

    Out-Grow Pasteurized Manure Based Mushroom Substrate: available at Amazon

    Our take: This substrate is a good option if you are on a budget but still want to grow your mushrooms in a high-quality medium.

    What we like: This substrate came from organically-fed horses, making it a great natural source of nutrients for healthy blooms. It also comes pre-pasteurized, so it is easy to use right away.

    What we dislike: Because it is substrate and doesn't include a filter, it is not easy to keep sterilized.

    Honorable Mention mushroom grow bag

    Impresa Autoclave Mushroom Growing Bags: available at Amazon

    Our take: This traditional mushroom grow bag is perfect for anyone looking for a sturdy, durable option.

    What we like: These grow bags are thick, making them very tear-resistant and easy to sterilize. The filter is also a good size, making them easy to use and keep sanitized.

    What we dislike: Because these bags are thick and durable, they are a bit more expensive than other grow bags.

    Jackalyn Beckis a writer for BestReviews. BestReviews is a product review company with a singular mission: to help simplify your purchasing decisions and save you time and money.

    BestReviews spends thousands of hours researching, analyzing and testing products to recommend the best picks for most consumers. BestReviews and its newspaper partners may earn a commission if you purchase a product through one of our links.

    Distributed by Tribune Content Agency, LLC.

    Sours: https://www.chicagotribune.com/consumer-reviews/sns-bestreviews-garden-best-mushroom-grow-bag-20210914-e56oa6mlgbbxbp6i2pcxcioj4e-story.html
    All in One Mushroom Grow Bag Inoculation Techniques - How to Knock Up a Bag

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