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Amazonian PES XL flush

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  • 1x Extra large grow box  containing substrate with active mycelium
  • 1x Large Grow Bag with horizontal Micron Filters
  • 2x Paperclip to close the grow bag
  • Discreet shipping

Amazonian XL Magic Mushroom Grow Kit

PES Amazonian cubensis are known for growing very large mushrooms. The Amazonian PES is amongst the strongest mushrooms in our Magic Mushroom Grow Kit catalog. These magic mushrooms give strong visual effects and will elevate you to ecstasy. The mushrooms grow round, chestnut brown, sometimes scaled caps. This PES Amazonian magic mushroom grow kit is easy to grow with plenty of fun results!

The PES Amazonian strain is now available in a 2 liter (2100cc) XL Grow Kit. Grow large!


Details for PES Amazonian XL | Extra Large Grow Kit

Years of planning and testing has resulted in the next generation of standard Psilocybe cubensis 'PES Amazonian' XL magic mushroom grow kits. The standard Psilocybe cubensis 'PES Amazonian' XL magic mushroom grow kit is now even better than it ever was. Compared to the first generation of Psilocybe cubensis 'PES Amazonian' XL magic mushroom grow kit, the next generation is improved with:

  • Larger yields, more mushrooms
  • More flushes*
  • Better resistance against contaminations
  • Different, but easier instructions


*some strains produce more flushes than others. The first three flushes are the largest.

Meet the new standard of easy grow kits

The Psilocybe cubensis 'PES Amazonian' XL magic mushroom grow kit is slightly different than the grow kits you might have seen before. After opening the carton box you will see it right away. In the middle, on top of  the plastic lid you the familiar micronfilter. But new on the lid is a white adhesive strip. Both parts were needed in the first stages of the preparation process in the laboratory. They should remain untouched.

Just like the previous and other easy grow kits, you do not need to use additional spores. During the laboratory process, the spores have developed in mycelium inside the substrate (the cake) in the grow box.

How to store the grow kit correctly

It is recommended to start the cultivation process right away. If you decide to start growing later, you may store the grow kit in the refrigerator (2°C to 8°C) for 2 weeks (4 weeks after production date). First, wrap the grow kit in a plastic shopping bag and close it well.


  • 1x grow box – This contains substrate with active mycelium (the cake)
  • 1x large grow bag – The bag has micron filters to keep contaminants out
  • 2x paperclip – For closing the grow bag.


You need

  • Misting Bottle – Misting is needed for the humidity level
  • Potable water – For misting and soaking
  • Clean environment – Work clean to give other fungi and bacteria (micro organisms) no chance to contaminate.


We recommend to use


How to prepare the room and yourself before you begin

  • Close any open windows. Wind or draft may bring microorganisms that can contaminate the Psilocybe cubensis 'PES Amazonian' XL Magic Mushroom grow kit.
  • When taking out the grow box with the cake from the carton box, put it on a disinfected surface. If this surface would not be clean, micro organisms may attach to the grow box and will flourish inside the Psilocybe cubensis 'PES Amazonian' XL Magic Mushroom grow kit, and will contaminate the grow box.
  • Make sure you work with clean hands and arms. We recommend using surgical gloves or a good disinfectant when handling the kit. You should use a facemask to avoid breathing into the grow bag and on the cake.


Starting the process

  1. 1. Fill the box with fresh, potable water. Close the grow box well and let is soak for 12 hours.
  2. 2. After 12 hours, pour the surplus of water out of the grow box.
  3. 3. Place the grow box inside the large grow bag. The open end of the bag should point upwards.
  4. 4. Remove the lid from the grow box. Rinse the lid, and store it.
  5. 5. Fold the open end of large grow bag twice; do not cover the micron filter.
  6. 6. Place the paperclip on the fold, so the bag stays closed. Now the Psilocybe cubensis 'PES Amazonian' XL Magic Mushroom grow kit is ready to grow.
  7. 7. Place the Psilocybe cubensis 'PES Amazonian' XL Magic Mushroom grow kit inside the carton box, on top of the ziplock with lid.



The ideal temperature is 24°C. Do not have the temperature drop under 18°C and not exceed 29°C. To keep the temperature from dropping under the 18°C, you can use a thermo mat to maintain the ideal temperature. A thermo mat  is a must-have in the winter or colder regions of the world.


The Psilocybe cubensis 'PES Amazonian' XL magic mushroom grow kit only needs light for the mycelium to ‘understand’ it has reached the surface. Only then, mushrooms will grow. A few hours of fluorescent/artificial light or indirect sunlight a day is more than enough. Direct sunlight kills the mycelium, so avoid the sun to shine directly on the grow kit.

Water / Misting

The day after you start the process you begin with misting. Open the grow bag by removing the paperclip. Do not spray directly on the cake, but spray one time against every side of the bag. So you mist once a day, four sprays. Misting also vents fresh oxygen inside the bag. Right after misting, close the bag again with the paperclip.


If the conditions are optimal, you can expect the first small mushrooms (the pins) to appear between 5 and 16 days. This also depends on the strain. Some cubensis strains grow slower than others.


The mushrooms come up in groups. This can be a small or large group. That depends on the strain. A growth like this is called a flush. Mushrooms are almost never ripe at the same time. You can get more than one flush out of a kit. The first two flushes are the largest. When more flushes come, they will be smaller than the previous one.


Mushrooms are ripe and should be picked when the veil between the hat and the stem has just torn. Don’t wait much longer. Use surgical gloves or disinfect your hands, wrists and arms. Pick the mushrooms that are ripe and let the others continue to grow. Remove the mushrooms from the cake by taking hold of the base of the mushroom between thumb and index finger. Rotating your hand clockwise slowly, until the mushroom lets go. Do not pull out the mushrooms. This would risk damaging the mycelium and killing it. When most of the larger mushrooms have been picked, also pick the smaller ones and the pins as well.

Mushrooms that grow from the sides

Mushrooms grow where the light reaches and where there is little penetrating resistance. Because the cake has light shining on the sides, the mushrooms might also grow there. It is hard to counter this and can be allowed. Some growers wrap the sides of the grow box in aluminum foil to keep the sides dark, but this doesn’t always work well.

When mushrooms grow there, they can be picked just before you soak the kit:

Clean hands! Take the grow box out of the bag and place it upside down on your other hand. Wiggle the plastic box so that the cake will fall out, onto your hand. The plastic box can be placed on a disinfectant surface. Now you have this hand free to pick the mushrooms from the sides of the cake. When all mushrooms are picked, you can place the cake back as it was, in the plastic box and continue to the soaking process.


After all the mushrooms have been picked, you prepare the kit for the next flush. Again, with disinfected hands or gloves; take the grow box out of the large grow bag. Fill the box with fresh, potable water. Take the lid out of the ziplock bag and use it to close the grow box. Place the closed grow box in a soaking Bag or use your own clean plastic shopping bag and wrap it around the box. Close it well and place this in a refrigerator (2°C to 8°C) for 12 hours. This is called the soaking process. Water will now soak through the cake, preparing it for the next flush.

During the soaking you can hang the grow bag with micronfilter upside down to dry. Make sure to hang it upside down, so no micro organisms will access the bag. Many growers prefer to use new and unused grow bags after every flush.

After 12 hours take the soaking Bag with the grow box, out from the fridge and unpack it.

Next Flush

To continue, follow the same steps 3 – 7 as before when you started the process for the first time. Several days later, a new flush will appear. You can get at least 2 or 3 flushes out of a Psilocybe cubensis 'PES Amazonian' XL Magic mushroom grow kit. If you are experienced in cultivating, you can get more flushes out of a kit.

The end

When no more mushrooms grow out of a grow kit after the second flush for at least three weeks, or when the Psilocybe cubensis 'PES Amazonian' XL Magic Mushroom grow kit turns green, red, grey or yellow; the grow kit can be disposed of.  The change in color is a sign that the grow kit is contaminated with another fungus or a bacteria. No more mushrooms will grow out of the Psilocybe cubensis 'PES Amazonian' XL Magic mushroom grow kit and the grow kit should be thrown away in the garbage outside.


When you are too late picking the mushrooms, they will drop their spores. The cake and the mushrooms will turn black/purple (some other cubensis strains red/brown) because of the spores. This is not really a problem; it just doesn’t look very pretty. When mushrooms release their spores, they also start to degrade and the active ingredients are breaking down. Mushrooms will lose some of their potency.

Be sensible

Check out the responsible use page for more information on do’s and don’ts.

This kit is meant for small-scale home use only.

Important information about PES Amazonian XL | Extra Large Grow Kit

  • You have to be 18 years or older to order this product
  • This product has shipping limitations. See the additional information to find out where we don't ship.
  • When you place an order you declare that you are aware of the legal status of the ordered product(s) in your country and that you are allowed to receive and posses these.
  • The use of magic mushrooms is at your own risk, so make sure to be well informed about the use and their effects.
  • The price does not include shipment.
Productcode mb-mm2ap
Weight (KG) 1.4000
On Sale? No
Alternative product: No
Growkit type Standard 100% Grow kit
Difficulty Moderate
Size 2100cc
Species Psilocybe cubensis
Origin Colombia
Potency High
Optimum cultivation temperature 23ºC
Yield (from) 200 grams
Yield (to) 700 gram
Water Spray Needed Yes
Not shipped to: Non EU countries, Africa, Asia, Australia, Caribbean, Central America, Germany, Iran, Middle East, South America, Canada, Estonia, Finland, Israel , New Zealand, Norway, Russia, Sweden, Switzerland, Turkey, United Kingom, United States
  1. Can be amazing growbox..

    Review by Martin

    Hello guys, this was my 3rd order here and as always i got great results.I ordered 2 XL boxes Amazonian PES.. 1 of them abolutely amazing - around 400g fresh at the 1st flush. I tought the second one just need a little more time but when i picked the mushrooms from the 1st box the mycelia on the 2nd turned green and than i was sure that its somehow contaminated.. :/
    I don't know what went wrong i never had a problem like this before.. i also ordered B+ once and thay also got contaminated but on the 4rth flush and because i wasn't being carefull... and i got around 700-800g fresh on the 1st 3 flushes soo it wasn't a problem..
    This time i was very carefull but something went wrong,, Anyway the Kit is great you can get huge flushes from it buy you have very clean. Peace >) (Posted on 11/30/2018)

  2. Good product, even better service

    Review by Akasha

    We got this growkit as a substitute for another, which had arrived moldy due to hot temperatures in August.
    The customer service was incredible - within a short time we were able to start with a fresh box that yielded great mushrooms.
    Highly recommended! (Posted on 11/23/2018)

  3. 10

    Review by Sebastian

    Najlepsze :D (Posted on 11/22/2018)

  4. recommended strain

    Review by Tom

    Recommended but sensitive to humidity, everything is fine after the first flush. The "cake" was placed in a larger box after the first flush and it made a difference (up to 4) (Posted on 11/15/2018)

  5. Great results

    Review by Alan

    1st flush took a little longer to start than expected, however, 2nd flush came in quick, with a bigger yield as well, just started my 3rd flush today.
    I dried them out and made a tea and ate a few... very nice trip... head and body trip with nice visuals... very uplifting, happy trip, very easy to grow, with great reliable results and fun trips... ticks all the boxes! (Posted on 9/25/2018)

  6. Very good experience

    Review by Louis

    Slow to start off but very nice results. Only got about 30g dried from the first flush, about 45 from the second and I have just started the third. Amazing effects, I've never felt like I didn't have a body before! :-) (Posted on 9/8/2018)

  7. Amazing

    Review by Lulas

    Amazing PES Amazonian XL. A bit slow to receive the first flsushes but overall very good. We had an amazing trip with the right feelings. One of the best ever (Posted on 8/27/2018)

  8. Amazing

    Review by Junior

    Very high yield also gave the the greatest experience of my life, I've tried a number of different types of mushrooms and these are the best by far (Posted on 8/27/2018)

  9. Favourite

    Review by Christos

    Out of the kits I have tried, this for me was the best. Highest yield, most flushes, largest mass, and most pleasurable trips. Can't go wrong with these ones, especially for beginners (Posted on 8/18/2018)

  10. Amaz-ing!

    Review by Serina

    These are my favourite kits, great yield and great strain! Can't go wrong with Amazonian (Posted on 8/1/2018)

  11. Incredible

    Review by Odrada

    Big yields great high incredible laughing experience and deep convos
    Highly recommended (Posted on 7/27/2018)

  12. PES Amazonian XL

    Review by Rad

    Great product and very fast delivery.
    Nice and easy flushes.
    Thanks guys!!! (Posted on 5/14/2018)

  13. Great Product!

    Review by Vladimir

    Fast shipping, no issues getting the order. Great KIT and one of the best mushrooms! Amazing strong effect and easy to grow mushrooms! Recommend! (Posted on 3/3/2018)

  14. Big fruits, highly resistant to contamination, good trip

    Review by Ramon

    The kit was slow to start off, as it took almost 2 weeks to start fruiting (not very strange, considering that at the time the package arrived the mycelium hadn't colonised the substrate fully).
    The harvests were ok, the 1st one yielded 380gr, the 2nd 190gr, the 3rd 50gr and the 4th 40gr. That is a total of 660gr of fresh mushroom.
    The effects were good, similar to those of Ecuatorian also sold on this page, and stronger than those of B+ and McKennaii (also from this shop).
    What I liked the most is its strength against contamination. (Posted on 2/2/2018)

  15. Infected kit supplied/ no customer service response

    Review by Dawson

    My kit was slow to start off considering I’ve grown with kits like this before however I waited patiently for the first signs of life. Two weeks in small mushrooms started to show. They continued to grow to maybe an inch tall when green mould then started to appear around the side of the kit. I waited a further 2 days to see if the shrooms would grow any more which they did not. The website informs this scenario is signs of a contaminated kit. I relayed all applicable information back to The website but had no response. Overall disssapointed. Poor customer service.
    @Edit by MMS: Hi, we responded to your message on the 19th of December 2017, please check your spam for our email. (Posted on 1/27/2018)

  16. PES Amazonian XL Kit

    Review by Andrew

    Great kit,loads of very large shrooms.
    Effects wise I personally prefer these to B+,they seemed more visual.
    Highly recommended ,and as always ,great service /fast dispatch.
    I must say,if you take the time to read up on Mycology,it really is very interesting,McKennaii and Jamaica P. cyanescens are next on my list ,grown from spore vials (also from these guys). (Posted on 1/17/2018)

  17. lovely product

    Review by Nicolas Max

    great stuff, easy to grow and boy do those bad boys make you trip (Posted on 1/11/2018)

  18. Amazing

    Review by An di

    WOW that was great guys i love you :D, im not sure when im gonna eat them but i just got my first yield picked, the first mush that was shown was HUGE, i dont have scale right now but its seems like about 70 grams. The hole box is filled with mushes and they come new ones growing every day. (Posted on 7/29/2017)

  19. Good Stuff

    Review by Ciaran

    As with the other two grow kits I've bought here, this kit yielded a very healthy amount of shrooms.

    The high was ridiculous. My stomach ached for two days afterwards, just from laughter.

    Magic Mushrooms Shop are a perfect specimen of a retailer. Professional, friendly and efficient.

    The customer service are very accommodating and knowledgable.

    Highly recommended.

    (Posted on 8/16/2016)

  20. Must try / test = a advice/tipp from me

    Review by Holger

    extrem good, but almost always sold out....

    ***maybe i can order in advance**

    Greetings : Holgi

    (Posted on 10/10/2015)

  21. Slow but potent mushrooms

    Review by Satisfied Customer

    There was nothing growing inside my box for like 3 weeks, but then the shrooms decided to fill up the box. I got a great yield out of the first box, it flushed 5 times already and everytime the little devils are just as strong as the former ones. Currently waiting for my second PES box to give me what i want, already seeing those little ones growing big. (Posted on 7/12/2015)

  22. SUPER

    Review by Red eye

    Incredible company & product. Sent cash by post and got super fast delivery. I started at the end of March 2015 and so far I harvested 8 flushes with a total of 924g (fresh) mushrooms. I am curious to see if and how much more will come... It's important to work very clean! After every start it just took about 6 - 9 days to harvest.

    I am speechless! The effect is outstanding with very visual trips. I just can recommend this product to every psychonaut!

    (Posted on 6/23/2015)

  23. great pruduct, great shop, great service

    Review by psyguy

    one day i was up do buy such a growkit.
    so i checked the offers of a number of shops, that offer these products, but...
    they were all too expensive and for the first time, i ditnt want to spend so much money in testing one of these growkits.
    anyway i found this shop and i was surprised about the large variety of cubensis strains and the additional information about each of them. (its missing in other shops) These prizes are even fair in comparison to other vendors. So it was worth for me to buy directly a xl-growkit for testing.
    So i ordered and on 18.11. my packet arrived.
    Immediately i followed the first steps (watering and so on..)
    and then... after 3 weeks there were no big changes. (there builded some spots of mycellium on the surface, that showed me, that the shroom is still living)
    After this long 3 weeks i gave up my hope, that there will grow anything.
    But one day, (05.12.) when i looked intothe box, i saw, that some , 0,3-0,6 mm long little mushrooms has builded. so i leaped for joy ;)
    these little mushrooms where more and more, till i stopped counting.
    now, on 09.12. they have reached a size of about 5-6 cm.
    (e.g. i use a heat mat and through distance variation i created the perfect temperature of 24 degrees)
    for all who decides for this product, i think its normal, that they need about 3 weeks, still the shrooms come.

    finnaly i'm really pleased with this shop and i recomment it to others. So keep on with this great service!
    My next order will be the "Albino A+" growkit (looks very interesting)

    Best regards!

    (Posted on 12/9/2013)

  24. Der beste Brick aller Zeiten!

    Review by Entheogenis

    Bis zum ersten Flush ging es fast 3 Wochen und ich hatte schon Panik, dass nichts wächst. Nach 3 Wochen wuchsen die ersten Pilze und brachten mir während 3 Monaten einen Ertrag von fast 900 Gramm! Unglaublich, der Brick hat 7-mal geflusht und es gab bis zum Schluss keine Kontaminierung durch Schimmel. Natürlich habe ich immer sehr steril gearbeitet, das habe ich jedoch auch schon früher, als ich bei anderen Lieferanten bestellte, immer getan. Aber diese Bricks schimmelten dann trotzdem irgendwann.

    Einzig die Deck-Erde ist bei diesem Brick etwas hart, so dass die Fruchtkörper oft vor allem auf der Seite gewachsen sind. Nach dem dritten Flush habe ich den Brick um 180 Grad in der Plastikbox nach oben gedreht, dann wuchsen die Dinger wieder Prima.

    Nebst dem grossen Ertrag sind die Mushrooms auch sehr potent. Kurz gesagt: DER BESTE BRICK DEN ICH JE HATTE!!

    Top Versand und Kundendienst!
    (Posted on 10/16/2013)

  25. Quesionable yield

    Review by Daniel

    Having grown both the smaller box and the 2ltr box there is only slightly bigger yield. First yield was 120g as opposed to 80g from the small box. After that the yield seemed very similar in weight.

    Haven't sampled the potency, yet. (Posted on 9/20/2013)

  26. 1A produkt

    Review by Dome

    Habe am 9.8.13 bewässert und heute am 23.8.13 sind schon die ersten Pilze ( 19) zu erkennen eins a Produkt hätte ich nicht gedacht auch Lieferung über lief spitze

    Bestelle auf jedenfall wieder hier (Posted on 8/23/2013)

  27. Boooom!

    Review by Munkelmann

    Einfach abgefahren! Ich bestell hier einige Jahre und jedesmal aufs Neue bin ich voll überzeugt!

    Hier kann man nicht meckern!

    Gute Reise! :-))) (Posted on 7/19/2013)

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