






🍄 Grow like a pro—sterile, simple, and seriously effective!
Out-Grow Sterilized Rye Berry Mushroom Substrate offers a fully hydrated, sterilized 1-pound bag with a self-healing injection port, designed for easy, contamination-resistant inoculation. Ideal for a variety of mushroom species, it supports rapid mycelium growth and can be stored up to 4 months, making it the go-to substrate for both novice and experienced cultivators seeking reliable, ready-to-use mushroom growing solutions.





| ASIN | B07CWHYKT2 |
| Best Sellers Rank | #93,854 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #285 in Plant Grow Bags |
| Brand | Out-Grow |
| Capacity | 1 Quarts |
| Color | Brown |
| Customer Reviews | 4.0 4.0 out of 5 stars (1,919) |
| Date First Available | May 6, 2018 |
| Finish Type | Unfinished |
| Included Components | Plant Hanger |
| Indoor/Outdoor Usage | Indoor |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1 pounds |
| Manufacturer | Out-Grow LLC |
| Material | Plastic, Polyester |
| Mounting Type | Floor Standing, Tabletop, Wall Mount |
| Number of Levels | 1 |
| Number of Pieces | 1 |
| Pattern | Solid |
| Planter Form | Bag |
| Shape | Rectangular |
| Special Feature | Lightweight |
| Style | Modern |
| Theme | Mushroom Cultivation |
| UPC | 616576243125 |
J**Y
Excellent product and price
In less than 3 weeks I've seen tremendous mycelium development and no signs of contamination. Bags are VERY thick, the inoculation ports are super thick and self seal well. I did notice a huge amount of dulling on the syringe needle after a single puncture through the port. Like I said they are VERY thick. Be careful not to push too hard and puncture through the back of the bag. The small size and volume of the bags has allowed me to inoculate 5 bags using only 10mL of spores. The breathing port has a nice thick filter material, so follow the instructions included with the bags on how to introduce oxygen and prepare your grain bags before attempting inoculation. They arrived well sealed, with no visible humidity or moisture present on the inner bag surface, appears to contain the perfect amount of sterile internal moisture for quick mycelium development using only 2mL of injected spore solution. So far I'm very happy and have had very good results. A great tip, inoculate your grain bags when the moon is in the sign of scorpio using the sidereal zodiac system. You will be surprised how fast the mycelium will develop and establish itself.
K**O
PERFECTED !!!
1st things 1st! I’ve order 6 pounds 3X’S every single one of my bags were perfected! The mycelium came out with no problems at all! 2nd! A lot of ppl who post bad reviews its only because they try to get into mushroom growing (mycology) learning based off of YouTube , tiktok etc. the whole www. Is cyber security, so when you post certain things they don’t want ppl to know , they red flag and take it down, so if there’s 3 steps to growing mushrooms they will take down 1 out of 3 of those videos . Leaving you to believe it’s not your fault. When it is, bc you relied of a controlled a.I. app mood director to guide you. Education cost , you will be charged in anything you do. With that being said when this product arrives you have to treat it with the upmost respect ! From how and where you store it . To temp. Control . Contamination awareness. If you don’t clean your home or work area thoroughly daily? You will contaminate this product without even trying ! This is bc your body is used to the bacteria’s you don’t disinfect, but the substrates and spores are not. Leaving you to think it’s the sellers fault ! These bags are very reliable bc of the breathing port! Their very sturdy allowing mycelium to breath while keeping contaminates away(again) you still need to store in a control temp of 70 degrees sterile area. The injection port is very reliable and study !!! Their doing us a huge favor bc trying to sterilize the rueberry alone is a major job . Ventilation to the bag is another ! I’ve bout 18 bags ! I highly recommend outgrow and this product !!!
A**R
Don't waste your money!
I purchased this product after checking the customer reviews as I always do when buying from Amazon. The reviews were mixed but overall were a bit more positive than negative so I initially purchased 6 one pound bags. I received them in a few days and they looked like a good product so I ordered 6 more along with some of OUTGROWS casing mix and manure compost. I followed the directions for prep and inoculation of the bags to a T. I have been doing this for years with home made bird seed jars and BRF jars with close to a 100% success rate, so this was not my first rodeo. I prepared 12 BRF jars and 12 bird seed jars that I made myself and inoculated the 12 OUTGROW bags, BRF jars and the 12 bird seed jars. All of my home made jars showed growth after 3-4 days and were fully colonized within ten days. I FINALLY got some growth on 2 of the OUTGROW bags in 14-16 days! Here I am a month into it and my jars have already been moved to bulk substrate in mono-tubs. The OUTGROW bags are still struggling to grow and have only colonized a very small portion of the bags, maybe a spot about 2 inches square. I called the customer service number and left a detailed message about the issues I was having. I also sent them an E-mail on their website. I haven't gotten a reply in 2 weeks now. I didn't want to write a bad review. Actually this is my first bad review of any of the products on Amazon. I guess I'm out the $100 I spent on the Sterilized Rye Grain bags from OUTGROW and also the money for the spore syringes! Two out of twelve bags that are struggling to grow and will most likely be tossed in the compost pile. POOR PRODUCT AND NO CUSTOMER SERVICE! DON'T WASTE YOUR MONEY!
Trustpilot
1 week ago
4 days ago