Manure All-in-One Mushroom Grow Bag - Organic Rye Grain and Manure Substrate €18,90
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Manure All-in-One Mushroom Grow Bag - Organic Rye Grain and Manure Substrate

Lab-sterilized and ready to inoculate.
€18,90
Made fresh to order - ships within 3-5 business days
Pre-sterilized under lab conditions - ready to inoculate
0.2 micron filter patch + self-healing injection port
Made fresh in small batches - never shelf stock
Weight of a Bag: 1 KG
Package of
100% sterility guaranteed - we replace it or refund you, no questions asked
Add 99 more for free EU shipping
100% sterility guaranteed
Free EU shipping over 99 EUR
4.8 - 300+ verified reviews
Free replacement if contaminated
Ships from Slovakia - EU delivery 2 to 6 business days
Lab-Grade Sterility
Every bag sterilized and sample-tested. Near-zero contamination risk.
Ready to Inoculate
No prep. No pressure cooker. Inject your culture and grow.
Free Mycology Support
Expert growing advice from our team - always included, always free.
2 to 6 Day EU Delivery
Fast, tracked shipping across Europe. Free above 99 EUR.
Simple process

From bag to harvest in 3 steps.

01

Inoculate

Inject your liquid culture, spores, or agar plug directly through the self-healing injection port. No flow hood or open transfers needed.

Day 1
02

Colonize and Shake

Keep the bag at 20 to 25°C in a dark spot. When 50% colonized, shake to break up and redistribute the mycelium for faster, even coverage.

Days 7 to 21
03

Harvest and Enjoy

Once fully colonized, introduce fresh air and humidity. Pins appear within days. Harvest just before the caps fully open for the best flavour and yield.

Days 21 to 35
Ingredients

Only what your mushrooms actually need.

Organic Rye Grain
Certified organic rye berry, hydrated to exact field capacity. Fastest, most even colonization. Never substituted with cheaper grain.
Premium Substrate
Precision-balanced for the right texture, moisture, and pH. Optimized for rapid pinning and multiple productive flushes.
0.2 Micron Filter Patch
Medical-grade gas exchange. CO2 out, fresh air in - blocks all contaminants, no sterile enclosure required.
Self-Healing Injection Port
Silicone port reseals after every injection. Clean inoculation without a flow hood. Designed for multiple access points without contamination risk.
Works best for

Which mushrooms can you grow?

Blue OysterBeginner friendly
Pink OysterBeginner friendly
Golden OysterBeginner friendly
Lion's ManeIntermediate
ChestnutBeginner friendly
King OysterIntermediate
ShiitakeIntermediate
About this product

Manure All-in-One Mushroom Grow Bag - Organic Rye Grain and Manure Substrate

Manure All-in-One Mushroom Grow Bag 

Maximize Mushroom Yields With The Manure Substrate.

Grow stronger, higher-yielding mushrooms with ease.
The Freshrooms All-In-One Manure Mushroom Grow Bag is expertly formulated for species that thrive on manure-based substrates, delivering unmatched nutrition and performance. Whether you’re a beginner or an experienced cultivator, this bag gives your mushrooms everything they need to grow bigger, faster, and more potent.

Each bag is filled with sterilized organic rye grain and a nutrient-dense manure blend made from cow and horse manure, coconut coir, vermiculite, and organic gypsum.
This premium mix replicates the natural environment where dung-loving species flourish — providing superior nutrition, moisture retention, and structure for explosive mycelial growth and exceptional yields.


Why Growers Love It:

Ready When You Are – Pre-sterilized and fully prepared. Just inoculate with spores or liquid culture and let nature do the rest.
Nutrient-Rich for Maximum Yields – Manure-based formula packed with organic nutrients for vigorous growth and high-yield harvests.
Perfect for Dung-Loving Species – Ideal for species that require manure substrates, producing dense, potent, and healthy mushrooms.
Built for Success – 0.2-micron filter patch and injection port ensure sterile, hassle-free inoculation.


Your Shortcut to Stronger, More Potent Mushrooms

Freshrooms All-In-One Manure Bags are made under strict sterile conditions and tested for consistency. They provide the ideal foundation for advanced cultivation — delivering nutrient-rich support and professional-grade performance in a single, ready-to-use bag.

🛒 Order your Freshrooms All-In-One Manure Mushroom Grow Bag today and unlock the full potential of dung-loving species with maximum yields and unmatched results.

Beginner and Expert Friendly
Works for first-time growers and experienced cultivators. No lab, no equipment, no guesswork.
100% Sterile Guarantee
If your bag arrives contaminated, we replace it immediately - no questions, no forms, no waiting.
Certified Organic Ingredients
Precision-balanced substrate from premium organic sources. Never substituted. Always fresh.
Sealed and Batch-Tested
Sealed immediately after sterilization. Every batch is sample-tested before it ships.
Common questions

Everything you need to know.

Yes. Our All-in-One bags are designed specifically for beginners. Everything is pre-sterilized and ready - you only need to inject your liquid culture or spores through the built-in injection port. No pressure cooker, no lab, no mixing required.
A liquid culture syringe, spore syringe, or agar plug to inoculate with. That is it. The bag contains everything else - sterilized grain, substrate, filter, and injection port.
Colonization typically takes 10 to 21 days depending on species and temperature. After full colonization, pins usually appear within 5 to 10 days. Total time from inoculation to first harvest is usually 3 to 5 weeks.
Most growers get 2 to 4 flushes from a single bag. After harvesting, soak the block in cold water for 12 hours to rehydrate, then return it to fruiting conditions.
Store in a cool, dark place away from direct sunlight. Use within 90 days of the production date. Do not freeze.
We replace it completely or refund you - your choice. No forms, no questions, no waiting. Just contact us.
Customer reviews

What growers say.

Customer Reviews

Based on 35 reviews
89%
(31)
3%
(1)
0%
(0)
3%
(1)
6%
(2)
S
Sj

Contaminated

R
Richard

Super quick delivery and exactly as described.

O
Oleg Sysoyev

Top i love it

Big thanks

s
sammyrubin

Great product, and so communicative and helpful. Thank you so much, and I will definitely order again :)

M
Marko Filipović

It was a verygood service. Packaging was great and product is great. It takes some time until the product is made, but it is worth it!