Jack Frost Cloud920® XL Ready-to-grow bag

Jack Frost Magic Mushrooms, a strain of psilocybe cubensis shrooms known for its high potency and distinctive appearance.

The Jack Frost shroom is a cross-breed of True Albino Teacher and Albino Penis Envy, both strains famous for their beauty and potency.

Jack Frost is aptly named because of its frosty appearance, pure white mushrooms with flat caps that curl upwards when they mature.

Be advised: this is, without a doubt, the strongest psilocybe cubensis in our catalogue. Adjust your dose proportionately.

Availability: In stock

€45.00
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Product Description
Details

Jack Frost mushrooms kit from Cloud920® the new standard of premium mushrooms!

The Jack Frost 2000cc premium magic mushroom kit is a different way of growing than you might be used to.

It is grown directly in a grow bag without the need for a grow box which, in turn, is a lot stronger against contamination.

Since the bag will only be opened once before you can enjoy harvesting the first big flush. The Jack Frost is specifically bread to grow extremely potent and massive mushrooms. Welcome to the new era of home cultivation.

  • Larger yields, more mushrooms

  • Easier to handle, very contaminantproof

  • Easier instructions, less worries about your mushrooms.

Contents

  • 1x Grow bag - This contains substrate with active mycelium (the cake) The bag has micron filters to keep contaminants out and let fresh air in.

  • 1x Large Bag clip  - Easy to use and a more secure way of closing your grow bag.

  • 1x Rubber band - To place around the substrate at the top to prevent side growth.

Instructions

The Jack Frost Ready-to-Grow bag does not include instructions. You can find the detailed instructions online here.

The Cloud920 Ready-2-Grow Bags are produced by Philosophr.

Additional Info
Additional Info
Productcode MCS.GKC920.JFRO-XL
Weight (KG) 1.4000
Mushroom Strain Jack Frost
Grow Kit type Cloud920® Bag
Difficulty Very Easy
Size Normal
Species Psilocybe cubensis
Origin United States
Potency High
Optimum cultivation temperature 23ºC
Yield (from) 200 grams
Yield (to) 800 gram
Water Spray Needed Yes

Customer Reviews

Items 1 to 20 of 60 total

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easy to use Review by Matjaž
Rating
It took 14 days to reach the first pins, then I waited 11 days for the first harvest, which yielded 110g of wet mushrooms. Now I’m drying them and hoping the second flush will appear soon.
(Posted on 11/11/2025)
Not as much as hoped Review by Dan
Rating
My only complaint would be that the kit doesn't seem to yield as much as expected, I'm still hoping for a third flush to get a little more out of it.
Support has been great though, they really seem to care :) (Posted on 11/5/2025)
Great medicine Review by Bitok
Rating
Great medicine, very good ! Initially crops were bigger but nevertheless they’re great! (Posted on 10/31/2025)
happy with everything. Review by Sorongil
Rating
Aw a 1st time grower, made some mistakes at the begining stages, contacted the support, and I can't say enough praise for those guys. By following their advice, I managed to save 80% of the order. Deliver is fast and reliable to the max. Definitely ordering again since yield and potency were excellent after all the mistakes I made. Can't wait to write a review again once I do it right from the start, it's actually happening right now since they even sent me a replacement for a suspicious bag of Jack, but even that bag yielded some, and the replacement bag is progressing real nice now that the conditions are tweaked with the help of the support staff here. (Posted on 10/30/2025)
Quick delivery Review by Richard
Rating
Thanks for the waffle nice touch!! Product is good (Posted on 10/30/2025)
Top strain and great service Review by Thomas
Rating
I had a couple of those. I only had one that did not work and it was replaced as M-M-S customer service is great. The others worked as expected, yielded good and had it's effects as specified. A little more intense than standard cubensis with a deeper insight and transformation qualities. (Posted on 10/26/2025)
Beautiful! Review by Yanou
Rating
Very easy to grow and very resistant to molds!
I have used no clip to spray it lightly once every 2 days and to give it more air exchange once a day.
Vigorous mycelium which is taking his time for fruiting but the result is great!Maybe a good idea to get it in a monotube!
A very big thanks to Lottie for her kindness when you have a problem!
This is the place! (Posted on 10/23/2025)
The first one didn't meet expectations Review by Toni
Rating
I bought my first kit and my hopes and expectations were high. I read the instructions and reviews carefully and my expectation was that in 2-3 weeks the mushrooms would start growing and in 3-4 weeks I could harvest. However, after 3 weeks there was no sign of the mushrooms and then I started giving them air once a day and kept the kit in the fridge for one night. Then after 4 weeks the first pin was born. Now after 5 weeks and 3 days I harvest 123g of wet mushrooms. The support team has been great throughout the whole process, but my expectations were not met in the end result, which I am a little disappointed about. Maybe the Jack Frost growing instructions could have been written that it is quite normal for the variety in question to grow for 5-6 weeks, as support told me during the process. However, I have already ordered the next kit, albeit a different variety. (Posted on 10/21/2025)
Slow and strong Review by Stray
Rating
Slow growth but strong effect and big fruits. (Posted on 10/15/2025)
Great Albino Medicine Review by vitor
Rating
Great and profound mushrooms, initially crops were bigger now I’ve noticed they don't produce as much but, nevertheless, it has been ok! I love them! be careful with dosage, for me they are not for recreational use but yes for cerimonial use! (Posted on 9/2/2025)
Magic! Review by Davide
Rating
11/10 Overall. Very easy to grow and quite fast-growing too. Big, meaty mushrooms that hit way harder than regular P. Cubensis. Will definetely be back soon!! ;) (Posted on 8/18/2025)
Great Strain Review by Fritte
Rating
This strain is very potent and strong. Easy to grow, beautiful fruit.
(Posted on 7/31/2025)
Jack Frost ‘‘tis my friend Review by Derek
Rating
Treat JF with tlc and she will treat you with tlc a most enjoyable friend. (Posted on 7/4/2025)
Contamination resistance Review by Dave
Rating
I always learn or experience something new when growing shrooms. This time I received some Jack Frost kits with spots of green mold and I was afraid of opening it. Frank told me that they can survive if they get some fresh air and all of them fruited multiple timed :D
Amazing how strong they are! (Posted on 6/27/2025)
My first disappointment with Mushroom Shop Review by Dom
Rating
Unfortunately, my grow kit didn’t produce anything this time. I followed all the instructions carefully. It started off well, but in the end I only got two tiny mushrooms, about 2 mm each ????. Still, I remain loyal to the Mushroom Shop and I definitely recommend it!
(Posted on 6/9/2025)
Jack Frost feedback Review by Afonso
Rating
I just wanted to give a big thank you to Frank and the lovely team who helped me over email. The first kit I received didn’t go so well, but thanks to the amazing support from both of them, they sent me a new kit – and this one is an absolute beast! I’ve had some great harvests, all thanks to Frank’s tips – following his advice really made a difference.

I also tried growing the Thai mushrooms and they were surprisingly easy to cultivate. Super happy with the whole experience. Huge thanks again for the care, kindness and professionalism. Keep up the great work!

(Posted on 4/10/2025)
WoW Review by Kid Fantastic
Rating
Beautiful white magic. Super easy to grow, exotic results! (Posted on 4/8/2025)
Be Patient and it will work Review by Alessandro
Rating
So this kit is very slow compared to the other growth kit .

My suggestion to make it perform are :

1) Don’t use the plastic clip they give you with the kit . I use it at the beginning and because it’s very heavy it will bend the bag and in particular the part where is located the filter will be blocked and doesn’t allow the air exchange . Use instead simple paper clip and let the bag on order to let the air come in and out the filter of it.

2) after 2 weeks open the bag once a day to speed up the growth process

Then wait and once the process is started the mushroom will grown without any problem :) (Posted on 4/4/2025)
Very strong mushrooms Review by Jon
Rating
I really love these mushrooms and want to share my experience.

I was told they were strong, but as someone experienced with high doses of LSD, I thought I was prepared. So, I took a heroic 5g dry. It hit incredibly fast, much quicker than any mushrooms or LSD I had tried before. The trip was unbelievably intense. For a while, I thought I was dead. I could see my thoughts and imagination play out without even moving from my chair.

Eventually, I regained awareness and started enjoying the trip. The visuals were absolutely phenomenal.

Moral of the story: take it carefully. I’d say 1g is enough. I totally recommend these mushrooms and this store.

Huge thanks to the team for their support during the grow. I will definitely buy again! (Posted on 4/2/2025)
Incredible shrooms Review by Brian
Rating
First flush took about 4 weeks to mature, although the mushrooms great at different rates so I was frequently harvesting only 1 big shroom at a time. In total I came away with just over 40 grams dried. Last flush was probably 8 weeks after receiving.

I take 2.5-2.7g in tea form and have very intense experiences with these, one trip was among the best I've had. I've shared with 5 other friends, all fairly new to shrooms, and all experienced intensely visual and introspective trips, so they've been properly tested.

This is my first timing growing Jack Frost and I will definitely order again. A couple notes: despite the instructions saying you don't need airflow, I reached out to support and they recommended giving them air once a day and that seemed to help them grow. Also, it appeared that contamination had set in but the shrooms still grew and thrives - apparently they eat the contamination. Incredible shrooms :) (Posted on 3/2/2025)

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Important information about Jack Frost Cloud920® XL Ready-to-grow bag

  • The purchase of this product is restricted to individuals who are at least 18 years old.
  • By initiating a purchase, you confirm knowledge of and compliance with the legal terms regarding the product(s) in your country of residence, as well as your eligibility to acquire and hold them.
  • Shipping restrictions apply to this product. Refer to Additional Info to discover our non-delivery zones.
  • Engaging in the consumption of magic mushrooms is solely your responsibility, so be certain to thoroughly educate yourself about their usage and consequential effects.
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