--- product_id: 279945187 title: "40 Pack, Mushroom Grow and Spawn Bags - Extra Thick Polypropylene Material, Tear Resistant - Size 13\" x “4 x “4 with 0.2 Micron Filter Breathable - Spawn Rye" brand: "outward creations" price: "Rp1012822" currency: IDR in_stock: true reviews_count: 8 category: "Outward Creations" url: https://www.desertcart.id/products/279945187-40-pack-mushroom-grow-and-spawn-bags-extra-thick-polypropylene store_origin: ID region: Indonesia --- # High-temp sterilization safe 0.2 micron breathable filter pad 2x thicker tear-resistant polypropylene 40 Pack, Mushroom Grow and Spawn Bags - Extra Thick Polypropylene Material, Tear Resistant - Size 13" x “4 x “4 with 0.2 Micron Filter Breathable - Spawn Rye **Brand:** outward creations **Price:** Rp1012822 **Availability:** ✅ In Stock ## Summary > 🍄 Grow Like a Pro: Tough, breathable, and ready to boost your mushroom game! ## Quick Answers - **What is this?** 40 Pack, Mushroom Grow and Spawn Bags - Extra Thick Polypropylene Material, Tear Resistant - Size 13" x “4 x “4 with 0.2 Micron Filter Breathable - Spawn Rye by outward creations - **How much does it cost?** Rp1012822 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/279945187-40-pack-mushroom-grow-and-spawn-bags-extra-thick-polypropylene) ## Best For - outward creations enthusiasts ## Why This Product - Trusted outward creations brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Sterilization Ready:** Designed to withstand high temperatures for hassle-free sterilization cycles - • **Versatile Cultivation:** Perfect for oyster, ganoderma, dictyophora spawn, substrate, and fruiting stages - • **Built to Last & Perform:** Twice as thick as standard bags for tear resistance and durability under pressure - • **Contamination? Not Here!:** 0.2 micron filter ensures optimal gas exchange while blocking contaminants - • **Bulk Value, Maximum Yield:** 40 premium grow bags sized 13"x4"x4" to scale your mushroom farm effortlessly ## Overview This 40-pack of extra-thick polypropylene mushroom grow bags (13"x4"x4") features a 0.2 micron breathable filter pad that prevents contamination while allowing gas exchange. Engineered for durability with double thickness and tear resistance, these bags withstand high-temperature sterilization and accommodate various mushroom spawn types and substrates, making them ideal for serious cultivators seeking reliable, scalable mushroom farming solutions. ## Description VALUE PACK: 40 Thick Polypropylene mushroom grow bags. Each bag 13" x “4 x “4 - includes a 0.2 Micron Protection Pad for gas exchange and prevents contaminants from entering the bag. Review: Works every time, with proper practice. - I've used these bags for about 3 years, they work fine with an impulse sealer or even a hair straightener, if your sealer is burning these, chances are like me and didn't read the instructions, when using an impulse sealer you must apply pressure 10 seconds after the impulse seal light has gone off or you WILL burn through your bags everytime. If that isn't the case then your sealer needs calibration. I've learned that thicker is not necessarily better, thicker bags crack more often. I recommend no thicker than 6mil. These bags hold up too at least 3 hours at 15psi. Back to practice, if your having contam issues asses your practice, these bags are perfect, and can fit so much more than with jars. These work good even for no soak no simmer tek. Avid customer here lol I can always rely on these bags Review: Easy to use - The bags are easy to clean, kill bacteria and mold. Bags can fill with spawn and substrate. They can hold a good amount of spawn and substrate. I would buy again. ## Features - VALUE PACK: 40 Thick Polypropylene mushroom grow bags. Each bag 13" x “4 x “4 - includes a 0.2 Micron Protection Pad for gas exchange and prevents contaminants from entering the bag. - Tear Resistant: 2x thicker than most bags. Grow Bags allow plenty of room for mushroom growing and spawn, substrate and fruiting. - Multi use for inoculation with mushroom oyster spawn, clone oyster mushrooms, ganoderma, dictyophora, and more - Bags designed to withstand high temperatures that come with sterilization. - Mushroom bags are suitable for spawn, rye grain, wood chips, substrate for mushroom farming, they can be also applied for spawn and as a fruiting bag spores ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08T4RB15V | | Best Sellers Rank | #101,346 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #309 in Plant Grow Bags | | Brand | Outward Creations | | Color | Silver | | Customer Reviews | 4.4 4.4 out of 5 stars (93) | | Date First Available | January 14, 2021 | | Finish Type | Unfinished | | Included Components | Plant Hanger | | Indoor/Outdoor Usage | Indoor | | Item Weight | 10.2 ounces | | Manufacturer | Outward Creations | | Material | Polypropylene (PP), Wood | | Number of Pieces | 40 | | Pattern | Solid | | Planter Form | Bag | | Product Dimensions | 4"D x 4"W x 12"H | | Shape | Rectangular | | Size | 13" x 4" x 4" | | Special Feature | UV Resistant | | Style | Modern | | Theme | Mushrooms | ## Product Details - **Color:** Silver - **Material:** Polypropylene (PP), Wood - **Planter Form:** Bag - **Special Feature:** UV Resistant - **Style:** Modern ## Images ![40 Pack, Mushroom Grow and Spawn Bags - Extra Thick Polypropylene Material, Tear Resistant - Size 13" x “4 x “4 with 0.2 Micron Filter Breathable - Spawn Rye - Image 1](https://m.media-amazon.com/images/I/81KWAMCh8OL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works every time, with proper practice. *by B***A on February 26, 2023* I've used these bags for about 3 years, they work fine with an impulse sealer or even a hair straightener, if your sealer is burning these, chances are like me and didn't read the instructions, when using an impulse sealer you must apply pressure 10 seconds after the impulse seal light has gone off or you WILL burn through your bags everytime. If that isn't the case then your sealer needs calibration. I've learned that thicker is not necessarily better, thicker bags crack more often. I recommend no thicker than 6mil. These bags hold up too at least 3 hours at 15psi. Back to practice, if your having contam issues asses your practice, these bags are perfect, and can fit so much more than with jars. These work good even for no soak no simmer tek. Avid customer here lol I can always rely on these bags ### ⭐⭐⭐⭐⭐ Easy to use *by K***H on December 11, 2025* The bags are easy to clean, kill bacteria and mold. Bags can fill with spawn and substrate. They can hold a good amount of spawn and substrate. I would buy again. ### ⭐⭐⭐⭐⭐ Perfect size for a beginer *by N***Y on October 6, 2023* Quality is great. Really helps with a rookie margin of error. The smaller size also allows me to try different things without blowing the bank on grain spawn supplies. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.id/products/279945187-40-pack-mushroom-grow-and-spawn-bags-extra-thick-polypropylene](https://www.desertcart.id/products/279945187-40-pack-mushroom-grow-and-spawn-bags-extra-thick-polypropylene) --- *Product available on Desertcart Indonesia* *Store origin: ID* *Last updated: 2026-05-09*