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Mycology Soaking Bag 40×40 cm | 50µm Ziploc

Keep your grow kit safe from contamination during the cold-water dunk. Reusable 50-micron Ziploc PE soaking bag, 40 × 40 cm — sealed fridge dunking between flushes. Always read your kit's own instructions first — not every grow kit should be soaked.

Availability: In stock

€0.50
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Product Description
Details

Keep your magic mushroom grow kit safe from contamination during the cold-water soak. The Soaking Bag is a 50-micron Ziploc PE pouch sized for standard grow kits — sealed dunking in the fridge, with no exposure to leftover food smells or condensation drips. Reusable across multiple soaks.


Read your kit's instructions first

Not every grow kit needs to be dunked. Soaking is the right rehydration method for some kits, but other kits use a different protocol — and dunking the wrong type can damage the kit or kill your harvest. Always check the instructions that came with your specific grow kit before you start soaking.


Why dunk a grow kit?

For grow kits where soaking is the right rehydration method, the substrate dries out as flushes are harvested and the mycelium consumes its moisture reserves. A 12-hour cold-water soak rehydrates the cake and signals the mycelium to fruit again — often coaxing 2–4 flushes from a single kit.


Why use a soaking bag specifically?

The fridge isn't a clean room. Soaking your kit in an open bucket or container exposes the substrate to airborne bacteria, leftover food residue and condensation drips. A sealed soaking bag is the cheapest contamination control you can buy.


Specifications

Soaking Bag specifications
SpecValue
Outer dimensions40 × 40 cm
MaterialPolyethylene (PE), Ziploc-style
Film thickness50 micron (50 µm)
SealZiploc resealable top
UseReusable, food-safe PE
Best forCold-water dunking of grow kits in the fridge


The dunk protocol — 4 steps

Only use this protocol if your grow kit's own instructions confirm soaking is the right rehydration method.

The dunk protocol — 4 steps
StepAction
1After a flush is harvested, transfer your grow kit into the soaking bag.
2Fill the bag with cold tap water until the kit is fully submerged. Seal the Ziploc top.
3Place the sealed bag in the fridge for 12 hours. The cold rehydration triggers the next flush.
4Drain off the water, return the kit to its perlite tray and resume fruiting conditions.


Frequently asked questions

Frequently asked questions
QuestionAnswer
Do all grow kits need to be dunked?No — not every grow kit should be soaked. Always read the instructions that came with your specific grow kit before you dunk. Some kits are designed for a different rehydration method, and dunking the wrong kit can damage it.
Why dunk a grow kit?Mushroom grow kits that benefit from soaking dry out as flushes are harvested. A 12-hour cold-water dunk rehydrates the substrate and signals the mycelium that conditions are right for another flush.
Why use a soaking bag instead of a bucket?Household fridges aren't sterile. A sealed soaking bag isolates the kit from leftover food residue, condensation drips and bacteria that live in the fridge environment.
How many soaks per kit?Typically one cold-water dunk between flushes. Most grow kits give 2–4 flushes, so you may dunk 1–3 times over the kit's lifetime.
Can I reuse the bag?Yes — the soaking bag is reusable. Rinse it out with clean water after each dunk, let it air-dry fully, and store it folded for the next soak.
Does it work with magic truffles?Soaking bags are designed for mushroom grow kits with a substrate cake. Truffle grow kits use a different rehydration protocol — check your kit's instructions.


Reuse and care

The soaking bag is reusable. After each dunk, rinse the bag with clean water, let it air-dry fully before folding, and store it dry until the next use. Replace the bag if it develops tears or pinholes that compromise the seal.

Additional Info
Additional Info
Contents No
Productcode MCS.LBDSP.025-GBAG.40.40
Weight (KG) 0.0100
Origin Netherlands
Sterile Yes

Customer Reviews

18 Item(s)

per page
good bags Review by Martins
Rating
quality vacuum lock (Posted on 11/20/2025)
Super Review by Sherban
Rating
Those bags are absolutely huge. (Posted on 8/5/2025)
a bag is a bag Review by Martins
Rating
Does its job (Posted on 7/8/2025)
excellent Review by Bojan
Rating
excellent (Posted on 1/2/2025)
Good bag Review by Sehuti
Rating
Good bag (Posted on 10/31/2024)
Good Review by Ana Maria
Rating
does the job (Posted on 5/21/2024)
Good Review by Dave
Rating
Good quality, does not break easily. (Posted on 1/1/2024)
Need this Review by Dickky
Rating
You need this one. Fits 3 regular growkits, or one XL and one regular. (Posted on 6/15/2023)
strong good Review by H
Rating
big, good and strong, do a good job (Posted on 9/29/2022)
Big Review by H
Rating
Big and good (Posted on 8/2/2022)
great bags Review by shrooms 4life
Rating
quality bags (Posted on 10/16/2020)
Perfect Review by Teytum
Rating
Great accessory (Posted on 8/8/2020)
Cool Review by Vivien
Rating
Good qvality (Posted on 4/17/2019)
Works well Review by Nick
Rating
Good bags, proper size, strong material, didn't break. (Posted on 3/29/2019)
Does what it says on the tin Review by Damien
Rating
Key for avoiding contamination in the fridge for cold shocking mycelium (Posted on 2/15/2019)
Good. Review by M. M.
Rating
Comes in really handy when it comes to hygene and the fridge. Makes all the difference! (Posted on 8/10/2018)
As written: a must have for the serious grower Review by Hr. Vrist
Rating
I experienced that the first soaking bag I bought was of better quality (the zipper was better and full effective after being used more times).
But I've been very glad I bought the soaking bags and there's no doubt that it pays to be thorough with cleanliness and desinfection through all steps of the process when growing! (Posted on 7/29/2018)
Soaking Bag Review by Gert
Rating
Good soaking bag (Posted on 3/19/2018)

18 Item(s)

per page
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