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Sterile Magic Mushroom substrate for p. Cubensis Extra Large

Mushroom Substrate XL kit contains 2100 ml of sterile substrate for mushroom cultivation. This substrate kit is tailored to the needs of the Cubensis mushroom. You add the spores and grow whatever you like.

We recommend to use Liquid Culture for a better development of the spores. Remove it if you only need the substrate

Needs spores? Adding Spores from our collection will get you a 15% discount on them. Just add a spores Syringe / Vial to your cart for the discount to apply.

You`re in control. Grow your own Magic!

Availability: In stock

As low as: €34.95

1 x Liquid Culture | 25ml  
substrate kit 2100cc  

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Price as selected: €34.95

Multi Banco
Product Description

Mushroom Substrate Kit XL | Sterile Substrate for mushroom cultivation

The mushroom sterilised substrate can be thought as soil for a plant. This sterilised substrate needs to be inoculated with our liquid cultures obtained from spores.

Mushroom Substrate Kit contains

  • Container with 2100 cc / ml sterile substrate mix
  • Liquid Culture 1 x 25 ml
  • Injection port
  • Fruiting Bag with Filter
  • Alcohol swap
  • Clip

Substrate Contains:

Sterilised substrate with a moisture content: 60-65%. A mixture of whole oat, vermiculite, perlite and Gypsum.

Recommeded products to use

  • Liquid Culture
  • Spore syringe
  • Spore Vial
  • Face mask
  • Gloves
  • Lighter
  • Desinfectant handgel


Always store your substrate kit in a clean refrigerator ! We recommend to use the substrate kit as soon as possible. The kit can be kept under refrigerated conditions for up to 6 weeks.

How to use a Mushroom Substrate Kit : Instructions

Phase 1 - Prepare the Liquid Culture

Wash your hands and clean the working area! .

  1. Shake the spore vial or syringe very good to make sure all spores are floating.
  2. Disinfect the injection site of the liquid culture and the spore vial or syringe with the alcohol swap.
  3. Inject 2 ml of spore solution in the Liquid culture

Shake the inoculated liquid culture vigorously once a day every day for 10 days Store the inoculated liquid culture in a place between 23-27 degrees Celsius. The liquid culture is ready when you see a cloud floating in the suspension. This is mycelium..

Your Liquid culture is ready, It is called the Master Culture, if used and stored properly you can have lots of mycelium from only a bit of spores..


  • If the liquid is murky, it means there is a contamination and the culture is unusable.
  • If you don’t use the liquid culture for 10 days, store it in the refrigerator

Phase 2 - Inoculation

Step 1

  • Wash your hands and clean your working area
  • Clean injection site of the sterilized substrate and liquid culture

Step 2

  • Retract 10ml (1200 CC kit) or 25 ml (2100 CC) from the liquid culture
  • Inject spore suspension, through the injection site of the kit

Step 3

  • After inoculation turn and shake the box 360 degrees in all directions
  • store the kit in a dark place with temperature between 23 °-27°C


After inoculation, you'll see mycelium form. A white fungus will gradually fill the sterilized substrate. This can take up to 2-3 weeks depending on the temperature.

Phase 3 - Fruiting and Spore collection

~ Please keep in mind that fruiting mushrooms can be illegal in you country. Always check you local laws before entering this stage. ~

When the substrate is fully colonized it's time to get the fruits growing to collect mushroom spores or mushroom tissue to continue your research or cultivation.

Additional Info
Additional Info
Weight (KG) N/A
Grow Kit type Without mycelium
Difficulty Moderate
Species Psilocybe cubensis
Origin Netherlands
Potency n / a
Optimum cultivation temperature 25ºC
Yield (from) 50 grams
Yield (to) 1000 gram
Water Spray Needed Yes

Customer Reviews

9 Item(s)

per page
Great quality, greater support, best vendor Review by Erka
It delivers ever time. Point (Posted on 10/14/2023)
Contaminated Review by Bogdan
It unfortunately was or got contaminated somehow. I tried identifying the contam but it doesn't look like anything that anyone has seen before... That's unfortunate. (Posted on 12/24/2022)
Mushroom Substrate Kit XL 2100 ml Review by Chris
good product, I'll buy it again (Posted on 11/25/2022)
Very good substrate Review by Oli
One of the best sterile substrate I've ever tried.
Super easy to work with, to add spores. You don't need any additional steps and preparing. It was colonised evenly, the mushrooms grow very well. (Posted on 11/3/2022)
Goede kwaliteit Review by Chris
Heb deze 4 weken geleden gekocht, 2 weken geleden ingespoten met liquid culture, en de mycelium is momenteel mooi aan het groeien binnenin. Dit belooft voor een mooie flush binnenkort ! (Posted on 6/14/2022)
worth the money Review by jack
as it failed, green mold, but brilliant customer service replace it for me along with a vials! thank you! (Posted on 6/11/2022)
Great product, great customer service Review by Tamas
Can't say anything bad, good quality product, fast delivery, exceptional customer service. Highly recommended! (Posted on 5/4/2022)
Contaminated with mold Review by RG
I received my order in due time, very well packed. One corner of the upper surface of the substrate, however, showed signs of mold. I didn't want to wait, so I decided to sterilize it and grow on jars rather than on the plastic container of the kit. Fortunately enough the sterilization worked.
I informed the seller and I got a dry reply: "Thank you for your message and informing us", which was definitely a surprise after such a serious quality control failure.

(Posted on 2/22/2022)
great product Review by Bob
you dont need pressure cooker with this and it works great. (Posted on 9/8/2021)

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