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Premium sterilized mushroom grain and substrate, lab tested for quality.

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Mushroom Cultures

Soon you will be able to browse our huge variety of available cultures

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Sporeo stands behind its products and takes all measures to guarantee your satisfaction. We have a rigorous quality control process in place before the products leave our facilities. If you have any feedback or suggestions on how we can improve our products, we are always open to hearing from you.

Your satisfaction is Sporeo's top priority. If you’re unhappy with your order for any reason, you can reach out to us at hello@sporeogrow.com and we’ll make it right.


How do I store my Sporeo mushroom spawn, casing, supplies etc.?

Supplies should be stored in a cool, dark place. Mushroom kits have a limited shelf life because they are alive! The sooner you ‘activate’ your Sporeo growing kit the better. If you think that you won’t be starting your Sporeo kit for a week or more, you should store in the refrigerator.

When you are ready, bring out of refrigeration, sit at room temperature for 2 hours.

Does mycelium grow faster in the dark?

A commonly held belief among growers is that mycelium will grow faster in total darkness. There is no data to support this; however, significant exposure to direct UV light from the sun can be detrimental. Light is a secondary trigger for initiating fruiting bodies. During incubation the mycelium should be kept in a dark and warm place. The fruiting still requires a protected environment, but also needs light, preferably indirect sunlight provided by a window and of course fresh air.

How long does mycelium take to grow?

1 to 2 weeks

Growth is initially slow, but after seven to eight days the mycelium grows exponentially. When the compost has been completely colonized by mycelium, growth stops on its own.

How many days will it take before I see my mushrooms grow?

Within 2-4 weeks all your mushrooms should have fruited.

The time it takes for your mycelium-colonized substrate to put forth harvestable fruits depends on several .

Sometimes your grow kit may not produce mushrooms as quick as you expected, even despite following growing instructions. Some mushrooms are “late bloomers” who need a little more time to bloom, and some are picky about their humidity and temperature.

Mushrooms thrive in extremely high humidity, and not enough is often the problem.

Uh oh! I think my mushroom kit is mouldy!

A contamination is undesirable in your substrate or mycelium. Contamination is mainly caused by impurities in the air, soil or water, these may cause long-term problems in your growing culture. As they tend to spread quickly it is best to get rid of contaminated cultures and remove them from your healthy ones.

The good thing is they can be easily identified. Healthy mushroom mycelium is white.

If you spot the colors green, blue, grey, or black patches on or in your fruiting box, your culture is most likely contaminated. If you spot small blue stains in mycelium it may just be bruising and not mould. Especially where your mycelium presses against the grow box, you may see some blue spots.

When are my mushrooms ready to harvest?

Better to harvest earlier than later! Harvest mushrooms as soon as the ring breaks from the cap. You don’t want these mushrooms to grow too old and loose their impressive shape and potency. As a tip: Stringy mushrooms with long stems and little caps are usually suffocating from their own CO2. Give them some air!

How do I store my Mushrooms?

Mushrooms tend to go bad within a few weeks in the fridge. If you want to save them or plan on using them for microdosing, the most effective way to store them for long term is drying. Drying your mushrooms should keep them potent for two to three years as long as they’re kept in a cool, dark, dry place. If they’re stored in the freezer, they’ll last indefinitely.

If you want to grow your Mushroom growing knowledge further there are great video blogs from mushroom farmers FreshCap FungusWhat the Fungus, The MushFarmerJewel’s Funky Fungi.

My sterilized grain spawn doesn’t seem to be germinating mycelium?

One problem may be the mushroom culture used and may not be compatible with rye grain. Potentially the culture was
not prepared properly from distributor. Another factor may be due to not storing it properly during its incubating
period. Be certain to keep the sterlized grain bag in the dark between 21-24 degrees Celsius.

My sterilized grain spawn/substrate/mixture has green tones to it, what is this?

This is most likely Trichoderma, a bacterial contaminant, and a mushroom grower’s worst nightmare. At this point the
cultivation is lost and the afflicted grow area should be disposed of outside and away from any healthy mushroom

My sterilized substrate seems to be dry; doesn’t it require moisture?

While this is uncommon for Sporeo sterilized substrate as we do bring it to field test quality, not to worry. Simply add
moisture incrementally until the sterilized substrate barely squeezes out a couple of droplets from your grip.

At what point is my sterilzied grain spawn ready to be mixed? to know anything else?

Your sterilized grain spawn will be ready to mix with our sterilized substrate once it has achieved full mycelial
consolidation. Meaning optimally most of your sterilized grain spawn will have a strong white mycelium network
throughout the grain bag. You can make sure the mycelium is working if the sterilized grain spawn has formed a harder
overall pack. Break this up incrementally to ensure maximum consolidation.

I don’t necessarily have a purely sterile space; can I still cultivate?

While it is not recommended, yes, it is still possible. During a circumstance like this you must be certain to sterilize every
nook and cranny of your mushroom grow kit and keep any potential contaminants as far away as possible. There is a
chance of it getting contaminated.

What else do I need to acquire aside from Sporeo sterilized grain and Sporeo sterilized substrate to make my mushroom grow successful?

You will need a liquid inoculant to inoculate the sterilized grain spawn, a sterile syringe and equipment, a clean working
space, and whichever container you decide to work with (we recommend the “MonoTub” method). This should complete
your mushroom growing kit. Be sure to also check out “Materials Needed” from our Growing Recommendations guide
included with your order.

How long will your grain and sterilized substrate last before use when stored properly? What would be recommended storage if possible?

The sooner your sterilized grain spawn and sterilized substrate are used the better is a good rule of thumb. Our grain
and sterilized substrate can be stored at room temperature for up to 14 days. If you wish to refrigerate them after 14
days, use within 2-3 months

Does this product grow psilocybin mushrooms?

Any manure-based substrate has the potential to grow psilocybin mushrooms. This is currently illegal and not
recommended by Sporeo.

How is your grain sterilized and how is your substrate pasteurized?

Our grain is sterilized using a commercial grade autoclave. Additionally we treat it with a proprietary blend of additives
to increase PH and prevent grain clumping. Our sterilized substrate is pasteurized in the same commercial grade

The sterilized substrate is organic manure based, does that mean it will give off an odor?

Due to the fact we thoroughly pasteurize Sporeo sterilized substrate, it should rid bacteria or contaminants that can
give off a foul smell.

Do I have to use a container such as a “monotub” or can I use a grow bag?

Our products are meant to be mixed into a sterile medium such as a monotub. It is possible to do so, but not recommended. If you cannot acquire a monotub, investigate purchasing grow bags.

Where can I find spores?

We currently do not offer mushroom spores or liquid inoculant at this time, but a simple search on your favorite browser
will help you find spore syringes.

Is that mold or mycelium?

Assuming you have prepared your sterilized grain spawn and sterilized substrate correctly and with proper sterile environments, it is likely mycelium. Mycelium resembles a soft, bright white, almost cotton or wool like network channeling through your sterilized substrate.
If you notice anything within your mushroom growing kit that’s black, green, pink or orange tones that could very likely
be mold and/or contamination.

When are mushrooms harvested?

After you’ve put your mushroom kit into fruiting conditions (fresh air exchange after full mycelial consolidation), you’ll
start to see “pins” start to form out sterilized substrate. Once pins have developed, the speed of mushroom growth is
accelerated, and flushes will quickly form. These flushes will reach their peak when the mushroom’s “veil” (a thin skirt
like membrane right under the cap) will drop. This is the optimal time to harvest.

I’ve had my consolidated monotub in fruiting conditions for almost a week, still no signs of life, why?

Unlike other plant species, fungi or mushrooms take a much more substantial time to grow. It can take up to 2 weeks
before you will see pins form. Usually, once pins form it will only be a couple of days until a robust fruiting body
develops. It is well worth the wait and a sight to see

There is a thin black layer covering some of my grow tub and mushrooms, what is this?

These are called spores; they are released once the veil of a mushroom breaks. Think of them as a seed. Mushrooms
expel these into the wind in nature to further expand their reproduction.

The Grow Academy

Learn about various topics for growing your own Sporeo mushrooms

Learn Now