What are the Benefits of Growing Mushrooms in a Wood Pellet Medium?

Hi, I’m Chris I started PelHeat.com back in 2007.

While fuel pellets are the primary market for wood pellets there are other uses. Most notably there is also the horse bedding market and BBQ wood pellets. However, there is another wood pellet niche that even I was unaware of until recently. It’s using wood pellets as a growing medium for mushrooms! However, after looking into the challenges of growing mushrooms I started to realise the benefits that wood pellets presented as a growing medium. The first video below provides a good introduction to the benefits of using wood pellets as a mushroom growing medium when compared to other materials such as straw.

Who knew wood pellets and mushrooms were such a good match!

Disclaimer: Hey! By the way… any links on this page that lead to products on Amazon or other sites are affiliate links and I earn a commission if you make a purchase.

The Advantages of Wood Pellets for Growing Mushrooms

As explained in the video, wood pellets require much less energy/cost to prepare the material for growing mushrooms. In comparison let’s say you were using straw as your mushroom growing medium, which is apparently very common. Well, there will be a lot of other bacteria etc growing within that straw. You first need to kill that bacteria and rogue fungi before you can even try and grow the mushrooms you desire.

Due to the high temperatures created during production, wood pellets are a sterile medium for growing mushrooms: Image – Amazon

Therefore that means you need to produce boiling water to sterilize the straw, wood shavings etc. Wood pellets are created under very high temperatures in the pellet mill. Furthermore, once the wood pellets are formed and cooled their high density means it’s very difficult for bacteria and fungi to penetrate into the wood pellets. Therefore wood pellets are a sterile growing medium for mushrooms. So you can then just add clean cold water to prepare the material before introducing the mushrooms/fungi. Wood pellets are also apparently very flexible and can be used for growing Oyster mushrooms, Shiitake and Reishi.

Within the pellet mill, the die temperature will exceed 90 degrees celsius while compressing wood into pellets: Image – Amazon

Softwood or Hardwood Pellets?

After watching quite a few videos and articles on using wood pellets for growing mushrooms I did start to notice a trend. There was a clear emphasis on using hardwood pellets and not softwood pellets. Now, most wood pellets are actually made from softwoods such as pine. Therefore I wanted to research a little bit more on why softwood pellets may not be suitable for growing mushrooms.

Well, apparently pine has anti-fungal properties, so that’s obviously not ideal if you’re trying to grow mushrooms! Some articles stated it’s not impossible to ground mushrooms with softwood pellets, but the yields will certainly be affected.

BBQ pellets are only made from hardwoods, therefore, they could be a good source as a growing medium for mushrooms: Image – Amazon

How to Prepare Wood Pellets for Growing Mushrooms

After I became aware of the benefits of wood pellets as a growing medium for mushrooms I wanted to look more into the process. I became curious about what methods are used to prepare the wood pellets. I then came across the video below which is a great little DIY setup that shows how to do it:

This video shows how to prepare a 40lb bag of wood pellets as a growing medium for mushrooms.

The process shown in the video uses a standard 40lb bag of wood pellets, so its an easy process to replicate. The creator of the video has made themselves a very handy barrel tumble mixer. First, the full 40lb bag of wood pellets is emptied into the drum, followed by roughly 5 gallons of water. The operator then lightly mixes the wood pellets and water, leaves the mixture for around 20 minutes and repeats the process.

Adding in the Mushroom Spawn

The wood pellets will have absorbed the water. Hence why wood pellets make such a good horse bedding product. At this point, you are ready to add in the mushroom spawn. The operator then rotates the drum mixer around 20 times. The mixture is then unloaded onto a DIY bag filling area.

Loading the Mix into Plastic Bags

The mushroom growing medium is then loaded (quite tightly) into some tall/thin plastic bags. Clearly, the advantage is that there is a larger surface area for the mushrooms to appear from. Once the bags are tightly packed and tied off, holes are then made 5-6 inches apart. This is done in three rows across the surface of the bags. The bags are then placed in a cool environment (60-70F) for 2-3 weeks for the mushrooms to form.

Growing Mushrooms
Shiitake, White Button and Oyster mushrooms are typical examples you can grow from home – Image: Wikihow.com

Conclusions on Wood Pellets as a Growing Medium for Mushrooms

Before writing this post I thought I knew pretty much all the uses there were for wood pellets. However, using wood pellets to grow mushrooms even took me by surprise. The real benefit of wood pellets for growing mushrooms is that they are sterile. Therefore the success rate and yields for growing mushrooms increases. I’m now quite interested in buying a mushroom starter kit and giving it a go myself. I’m a fan of a nice tasty mushroom, but this is the first time I’ve ever thought of growing my own!

A to Z List of Pellet Grill/Smoker Brands

A to Z List of Pellet Grill/Smoker Brands

Back in 2007 when I first become aware of pellet grills and smokers the only brand I was really aware of was Traeger. Traeger is really where this whole concept of cooking with pellets started in the 1980s. It was a ‘slow burner’ (pardon the pun) but since the 2010s is really when pellet grills and smokers started to get mainstream awareness, discussed alongside gas and charcoal grills. There are now over 30 pellet grill/smoker brands that I’m aware of, and the link above goes to my A to Z list of brands article.

Now, you may already be aware of a few of the other brands such as Pit Boss, Camp Chef, Z Grills and I’m sure you are aware of Weber, though you may not have known they have entered the pellet grill game. However, they are now many, many more brands to look into. Some may be what are commonly referred to as ‘Traeger clones’, but many others are offering their own unique designs and features.

A to Z List of The Best BBQ Wood Pellets

A pellet grill/smoker is only as good as the BBQ pellets you put into it. The type/quality of the BBQ wood pellets you use will impact temperature performance and smoke flavour. There are many pellet flavours including Apple, Hickory, Mapel, Oak and Walnut to name but a few. However, some brands are hardwood blended pellets whereas others are 100% single wood species.

In this article, I provide details on over 20 brands of BBQ wood pellets, their range of flavours, whether they are 100% single wood species or hardwood blended pellets, their typical price and where they are available. I also provide tips on how to get the best deal when buying BBQ wood pellets and how to test pellet quality. Finally, I discuss the new kid on the block, charcoal pellets and their special attributes compared to all other hardwood BBQ pellets.

Chris - PelHeat.com

Hi, I’m Chris. I started PelHeat.com back in 2007. This website is intended to be an educational resource on BBQ pellets, pellet grills & smokers. I hope you find the information useful.

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