Collection: Grain Spawn

Rhizo Funga strives to produce superior liquid cultures by isolating and testing genetics from robust, high-performing specimens. Our lab utilizes advanced genetic isolation techniques, and aerates all liquid cultures ensuring vigorous mycelial growth, resulting in faster colonization, higher yields, and greater fruiting consistency . 

To maintain optimal performance and purity, always refrigerate your cultures upon arrival and practice strict aseptic techniques during handling and inoculation.We guarantee liquid culture syringes for 30 days after delivery. If you feel your syringe arrived contaminated or not as described, Contact us for a free replacement.

While other methods may work, we prioritize quality and consistency. We utilize a thorough clean, soak, heat, and strain method that fully prepares the grain before sterilization. This additional effort results in a more consistent, high-quality grain that optimizes mycelium colonization and ensures stronger, healthier growth.

We only use the industry standard Unicorn Bags. 3 pound bags use 4T-INJ Bags and the 5 pound bags use a 3T. Both Include a 0.2-micron filter patch for controlled airflow and a secure injection port, facilitating easy inoculation with liquid cultures or spore syringes.

Colonization rates upon receipt will vary based on variety, transit time and temperature. Grains are Inoculated to order, so in most cases you will see visible mycelial growth upon receipt, but it's possible this will not occur until a couple days after. This depends on species and temperatures the grain spawn is exposed to during transit.

Keep in a cool, dark place during and after colonization. Once the bag reaches ~25% colonization, perform a gentle break and shake to redistribute mycelium and speed completion. Avoid opening until fully colonized and ready to expand into your substrate.

Use 2 to 3 mL per quart grain jar. For large supplemented substrate blocks, use 5 to 10 mL. Always shake the syringe first to distribute mycelium evenly.

Yes. We are more than happy to help you on your journey. Whether its questions about products or mushroom cultivation and mycology, feel free to contact us at Support@rhizofunga.com. We have an entire archive of proven recipes and TEKS that we are happy to share with the community. We can help with agar plates, sterilizing grain, making grain spawn, liquid culture, substrate, sterile technique, home and commercial lab and farm setups. You name it we have your back.