PF-Tek MycoPots³ Mushroom Growing Kit
A much loved growing technique born in the early 1990’s – modernised for today.
This simple, ready-to-inject mushroom grow kit is the classic recipe but enhanced with gypsum and coffee for that extra nutrient kick.
PF-Tek MycoPots³ Grow Kit
This mushroom grow kit has just about everything you need to grow your favourite choice of mushrooms from gourmet spore or culture syringe.
Completely sterile and ready for inoculation via the self-healing injection ports.
What’s included
- 3 x HEPA-Filtered and injectable MycoPots for ultimate contamination resistance
- Each filled with 280ml of Organic Brown Rice Flour with added Vermiculite, Gypsum and Coffee
- XL Grow Tent with specialised filters to provide clean air exchange
- 1.5 litres of Perlite to maintain a humid environment in the grow tent
- 250ml of Vermiculite for the “Dunk ‘n’ Roll” process – all explained in our guide
- 3-Ply Surgical Face Mask
- 2 x Anti-Microbial Hand Wipes
- 3 x Chlorhexidine Alcohol Wipes
- 3 x Sterile Needles
- Online Instructions
BYOS (bring your own spores)
- A syringe containing 6ml of spore or liquid culture solution.
How much to inoculate
Inject 1ml of your favourite gourmet spore or liquid culture solution into each injection port.
So, for all three MycoPots, a total of 6ml is needed.
The perfect incubation temperature for your kit (when using spores)
Gourmet spore syringes are never sterile, no matter what a vendor might tell to sell a product!
With this in mind, stay between 18-20°C or 64-68°F after injecting our kits with gourmet spores.
Getting this right will drastically reduce the chance of failure.
Though incubating at hotter temperatures will speed up mycelial growth more than it does at 20°C, it will turbocharge the rate at which other nasties can grow!
And trust us, nasties will have found their way on to the mushroom caps prior to the spore printing process (and sneak their way into spore syringes).
Mycelium will actually outrun a lot of contaminants, just give it a fighting chance with the right temperature!
Incubation temperature when using a gourmet culture syringe
Feel free to up the incubation temperature to 26°C after injecting our grow kits with gourmet culture syringes.
If there’s contamination in a gourmet culture syringe, it won’t matter which temperature you use — it’s ruined and the kit will become ruined too. There is no hiding from contaminants when it comes to LC syringes. And whilst on topic, never waste your time making an LC syringe from spores — it’s doomed to fail for everything mentioned above!
Guaranteed Promise
We stand by the products we produce, but sometimes mistakes happen.. especially further down the line (during shipping).
If you have received a damaged product then you need to let us know immediately.
Letting us know weeks or months later will not fly with us..
If you end up suffering a contamination issue, we are here to help, so head over to our contact page and let us know immediately.. please be prepared to provide the pictures we ask for and don’t be offended when we ask (we need to).
We will not refund or replace an item in which a customer hasn’t made us aware of immediately, and who hasn’t provided us pictures for — so please inspect your items thoroughly.
Important
We ship from the UK to almost anywhere in the world. Each kit is made fresh to order and typically dispatched within 3 working days (see our Shipping and Dispatch page for more info).
This product is for cultivating legal mushroom species only – please check your local laws before use.
Extra Advice
This grow kit typically yields between 250-300g of fresh mushrooms over two or three flushes.
Grow Guide for PF-Tek MycoPots³ Grow Kit
Follow this comprehensive guide to achieve the best results with your PF-Tek MycoPots³ Grow Kit. Each step is crucial for successful cultivation.
1. Inoculation of MycoPots
Work in a small, clean and draught-free room. We always recommend working within a Still-Air Box when completing inoculations of any product.
Make sure you're showered with fresh clothes. Clean your hands and forearms with the blue Clinell wipes, then fit your gloves and face mask securely.
Prepare your chosen gourmet mushroom spore/culture syringe for use by screwing on a new sterile needle.
Remove your MycoPots from the bag. They are now exposed to the open air and potential contaminants - this is where working within a SAB will greatly reduce your chance of contamination.
Clean the grey rubber injection ports on the lids of the MycoPots with a green Clinell wipe. Don't touch or try to remove the white air filter strips - they are essential.
Inject 1.5ml - 2ml of your gourmet spore or culture solution in to each MycoPot (distributed equally between each rubber injection port).
If you have any solution left and want to store it - flame sterilise the needle until red hot, leave it a few seconds to cool before putting the cover back on and then keep the syringe with needle attached in a cool, dark place - a drawer is ideal. Before using it again, flame sterilise it another time for good luck.
2. Colonisation of MycoPots
Temperature is so important for success. Being too hot or too cold may result in contamination or slow to no mycelium growth.
Stay between 18-20°C (64-68°F) and try to maintain a consistent temperature, i.e. don't let the temperature go up and down too much.
Avoid heat mats! They will cause excessive condensation leading to water build-up and an easy pathway for contamination to enter your MycoPots. Consider building or buying an incubator if you're struggling to maintain these temperatures - it's way cheaper than keeping your home heating on all the time and gives much better results too.
In optimum conditions, it will generally take 1-3 weeks for the substrate to reach full colonisation depending on inoculation type (spores or live culture), genetics, etc. Nature likes to keep us on our toes and this timeline can fluctuate based on a multitude of factors.
Patience will be your friend here.
3. Dunk and Roll
When the substrate is fully colonised i.e. completely covered in white mycelium, you are ready to use a method called 'dunking' to prepare for fruiting. Do not ever take the lid off your MycoPots before full colonisation.
Fill a container with water deep enough to submerge your colonised substrate (known as a 'cake') in. Open your MycoPots and remove the colonised cakes - they will be solid blocks. Place them in the water and you can use something like a plate to weigh the cakes down to stop them floating, as you need them to be fully covered in water at all times. Put a lid on the container or cover it to keep everything clean. Leave your cakes submerged like this for anything between 6-24 hours.. depending on how much patience you have! But obviously - the longer you leave them, the better your results will be.
Just before you're ready to take your cakes out of the water, pour some of the provided vermiculite out onto a clean surface or plate. Don't use it all as you will be repeating this process a few times between each flush of mushrooms!
Lift each cake out of the water, rinse them under a tap, allow excess water to drain off and then place them onto the vermiculite.
Roll them around until there is vermiculite stuck to the full surface area of both cakes.
4. Perlite for Maximum Humidity and Hydration
Pour your perlite into a strainer and rinse under a tap until it's soaking wet. When it stops dripping, pour it all into the provided XL Grow Tent. Please cover your mouth and nose when working with perlite - it's dusty and nasty to work with (take it from us).
5. Place Cakes into Grow Tent
Cut a piece of tin foil slightly larger than your cakes and place this on top of the perlite so the cakes won't touch it - don't ever have cakes sitting on damp perlite.
Now carefully place your cakes into the tent.
Make sure to fold over the top of your tent to keep humidity inside and the dusty nasties out! A little tape might come in handy if it's not staying closed.
6. The best bit... Fruiting your mushrooms!
Maintain a temperature somewhere between 20-22°C, this tends to be great for many popular species. When the temperature is right, essential levels of humidity will naturally build up inside the grow tent from the water you allowed to soak into the substrate.
You should not mist this kit, unlike some other grow kits you may have seen or used before. The only time you should open your tent is when you're ready to harvest your mushrooms - opening it even for a few seconds before this is enough to lose humidity and cause growth defects (aborted pins, caps breaking, etc).
Humidity and FAE (fresh air exchange) are extremely important for pinning and healthy mushroom development, as is temperature and light. They will all need to work in harmony.
We suggest cutting a 1cm slit through both sides of the tent, near to the top and placing an electric fan somewhere in the room on low setting. This will create a gentle air current inside the room which will increase FAE inside the grow tent. Your mushrooms will also need light to grow - we recommend indirect sunlight or a 6-7000K LED or fluorescent light a couple of feet away.
Light and Environmental Conditions
If you notice the inside of your grow tent looking dry, there are a few things which can cause this: The environment is too cold so humidity is not developing inside your grow tent, the fan is too close, the slits you cut in the tent are too big (cover excess with tape), grow lights are too close and drying out the substrate... Observe what's happening and adjust your setup as required - fantastic results depend on it.
Pinning and Growth
After around 3-7 days you'll begin to see lots of tiny white dots - these are hyphal knots which will develop into primordia, aka mushroom pins... the exciting part! It'll then only take 4-5 days for them to grow into fully mature mushrooms ready for harvest.
During this time, they'll let you know if something isn't quite right - fuzzy mycelium at the base of the mushrooms and/or thin stems are an indication that more FAE is needed so increasing the fan speed or length of the cuts on the bag might be something to try.
Don't worry about any mushrooms growing around the sides and bottom of the cake, you'll still be able to harvest them. If you want to give your mushrooms more room to grow next time, consider using a fruiting chamber.
Harvesting and Subsequent Flushes
When the veil beneath one of your mushroom caps is about to tear off, this is when you should harvest your first flush. If you don't get there quick enough, spores will begin to drop from your mushroom caps and make a mess! It's best to cut the mushrooms off with a clean scalpel or knife, you can also just pull them off but be careful not to damage the substrate too much.
After you've harvested all the mushrooms from your first flush, you should dunk your cakes again to rehydrate them for round 2! Remember to rinse them and allow excess water to drain off before placing back into your grow tent. It's really important that you dunk your cakes between each flush for best results.
You should also pour your perlite it into a strainer again and rehydrate it whenever you're dunking your cakes.
If you've taken good care of your grow kit, you should achieve multiple flushes of beautiful mushrooms before the nutrients are all used up.
Additional Resources
We also recommend reading our general troubleshooting guide as it's full of useful information which will help you solve and avoid problems.
If there's anything you're still unsure about and you need some advice on growing your gourmet mushrooms - get in touch! We're a friendly bunch.
Happy shroomin' 🍄🟫
Last updated on 07 July, 2025
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Easy to use
As simple and straightforward as ever!
In perfect condition. Instructions clear to follow.