Sterilised Substrate Kit

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This sterilised substrate box is the perfect habitat to grow magic mushrooms at home. First, you need to inoculate it with the spores of your choice. Then, you must keep it warm as the mycelium colonises. Finally, you can open it up and let the mushrooms grow, and before you know it, they’ll be ready to harvest!

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Volume: 1200 ml £18.22
  • Volume: 1200 ml £18.22
  • Volume: 2100 ml £24.86
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Volume: 1200 ml £18.22 In stock
Volume: 2100 ml £24.86 In stock
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Sterilised Substrate Kit: Perfect for Growing Magic Mushrooms at Home

This sterilised substrate contains a mixture of whole oat, vermiculite, perlite, and gypsum, and has a moisture content of 60–65%. This makes it the perfect environment for Psilocybe cubensis mushrooms. To use it, you’ll need either a spore syringe or, even better, a liquid culture containing the mycelium of your choice. Both will work, but a liquid culture is faster and has a greater chance of success!

This kit contains:

  • One box containing a sterilised substrate
  • One humidity tent/fruiting chamber
  • A paperclip (for the humidity tent)
  • Alcohol swap
  • Injection port

Using our kits to grow magic mushrooms is simple. Here's how it's done:

1. Inoculate your substrate using a liquid culture, spore syringe, or vial.

1.a. If you're using a spore vial and a 1200ml kit, inject the substrate with at least ½ of the contents of the vial. If you're using a 2100ml kit, use a full vial for fast and effective inoculation.

1.b. If you're using one of the many spore syringes available from our Shroomshop, use 5ml to inoculate a 1200ml substrate kit and 10ml to inoculate a 2100ml kit.

1.c. If you're using a ready-made liquid culture by Acid Shroomz, use between 2–5ml of culture for every litre of substrate.

1.d. If you're making your own liquid culture using a Mondo Liquid Culture Vial, inject 2ml of spores into the vial and wait at least 2 weeks for the spores to grow into a liquid culture (i.e. active mycelium). Then, inject the entire vial into your substrate (regardless of whether you're using a 1200ml or 2100ml kit).

2. Cover the substrate with a lid and keep it in a warm, dark spot. Mycelium does not need light to grow. For the best results, keep the ambient temperature around your kit consistently at 23°C. You can achieve this by placing a heat mat under your substrate kit or by storing it in a small cupboard or tent with a heater. Remember to use a thermometer to monitor the temperature in your grow space.

3. Leave the box undisturbed while the mycelium colonises. This can take several weeks, depending on whether you used a spore solution or liquid culture, as well as the stability of the temperature in your grow area. You'll know your growing medium has been fully colonised once it's completely covered in a white, wool-like substance.

4. Once the box is fully colonised, it's time to fruit your kit. To do so, open the box and fill it with cold water. Put the lid back on, and leave it in the fridge for 24 hours.

5. Drain the water, and place your box in a humid grow tent. Regularly mist the walls with water, and keep the ambient temperature at 23–28°C for best results. Provide your mushrooms with some natural light to help orient them and ensure they grow in the right direction.

6. Open your tent twice daily to allow for some air exchange and mist the walls to keep the humidity high. Allow your mushrooms to grow, and harvest them once they are mature (before the veil on the underside of their cap tears to release spores).

7. Following a harvest, repeat steps 5 and 6 until your substrate stops producing mushrooms. Note that the second and third flushes are usually the biggest.

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Reviews (57)
    (57)
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    03/Jan/2025

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    F. H.
    31/Dec/2024

    1 missing 1 contaminated
    sadly , i box was not send with , but i talked with support and they resend the box. anyway the one box which arrived was sadly badly contaminated and i had some dirt and questionable reddish dried mucus trail on top of the box. anyway i got a new one but this one was really really bad contaminated. green and grey mold everywhere... BUT they resend me the boxes so i have to be silent ! very nice communication with the support. they apologized and we are good now again :P ZAMNESIA IS STILL THE BEST PSYCHEDELIC STORE WORLDWIDE HATS OFF BROTHERS AND SISTER FROM ZAMMI

    F. S.
    30/Dec/2024

    Very inconsistent quality control; different composition than specified in article description
    Something is wrong with Zamnesia's quality control process regarding these boxes. I first bought a single large one about eight months ago. That one was sterile and the material mix matched the description, but it did not have the promised injection port. No big deal, I inoculated the substrate through the air exchange strip and closed the hole with pore tape, and everything ended up fine. Then, in my recent order, I've bought three small ones. They do have the injection port, but apart from the oats, it seems to be a straw- or manure-based substrate instead of vermiculite, perlite and gypsum. Also, one of them was horribly contamiated right at unboxing, and a second one (still sealed in plastic wrap, I have not inoculated them yet) also seems to develop a patch of wet rot. The boxes are packed way too full! That may seem like a weird complaint - more material = better, right? - but the problem is that they are so stuffed that the air exchange strip is in constant contact with the moist substrate. These microbe filters stop working when they are soaked, and microbes wander through the ports right into the nutrient-dense material that is literally pressed up against it. There should be at least two centimetres of space between the substrate and the lid. I'll still give it two stars because the customer service is refunding the first box without any issues, but still, it's kind of a hassle. I've been buying these because I'm willing to spend a bit of money to avoid the effort of sterilising stuff at home and to have a "foolproof" process, but with the extra work and time it takes to contact customer service and receive a replacement, it's not worth it for me anymore. Especially since Zamnesia did not communicate that they switched to cheap straw/manure to bulk up the substrate instead of the more expenive vermiculite-perlite-gypsum mix.

    L. B.
    22/Dec/2024

    Abwarten
    Habe das Substrat heute beimpft. Es wird sich noch rausstellen ob es erfolgreich war. Das steht ist in einer Folie eingeschweißt und kommt Filterbeutel

    D. T.
    20/Dec/2024

    one of two was contaminated on arrival
    one of the two i ordered was contaminated on arrival. however the good one seems to go well, growth in progress.

    L. H.
    17/Dec/2024

    Buono
    Molto buono

    R. P.
    15/Dec/2024

    Works
    Handy

    J. H.
    12/Dec/2024

    Substrat stérile.
    Je n'ai pas encore eu de récolte, mais le micelium colonise doucement. Le kit fait son boulot

    V. O.
    06/Dec/2024

    Perfecto
    Cantidad perfecta

    F. J.
    04/Dec/2024

    Les kit son trop compliqué dusage
    Mes kit eter sûrement contaminé

    L. O.
    You cannot post a review because you have not purchased this product
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Sterilised Substrate Kit
Sterilised Substrate Kit
Sterilised Substrate Kit
Sterilised Substrate Kit
Sterilised Substrate Kit
Sterilised Substrate Kit
Sterilised Substrate Kit
Sterilised Substrate Kit
Sterilised Substrate Kit
Sterilised Substrate Kit
Sterilised Substrate Kit
Sterilised Substrate Kit
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All products are intended for legal purposes only and are not for consumption or illegal use. Cannabis seeds are sold as souvenirs, and germination is illegal in many countries—please be informed before purchasing. By purchasing, you confirm that you have reached the age of majority and are aware of your local laws. Zamnesia is not liable for any actions taken in violation of these laws. All cannabis, hemp, mushroom-related, and other products are sold in strict compliance with applicable local regulations.
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