Ready to Grow Chestnut Mushroom Kit

So, when it comes to growing chestnuts, it’s important to keep things nice and cool. They can be a little tricky though, and you’ll need to make sure the humidity is just right when the mushrooms are still in their early stages, otherwise, they can dry out or stop growing altogether. And just a heads up – getting subsequent fruitings can be a bit of a challenge, so you’ll need to put in some extra work and attention. But don’t worry, you got this!


ENVIRONMENT Temperature 60-70°F | 15-21°C Humidity (Phase 1: Primordia) 98-100% Humidity (Phase 2: Fruitbody) 88-95% CO2 Sensitivity (Phase 1: Primordia) 500-1,000 ppm CO2 Sensitivity (Phase 2: Fruitbody) <1,000 ppm STORAGE: If you're not planning to use your block immediately, you can store it in the refrigerator for up to 6 months!
To get the best results when growing your chestnut block, we suggest using a fruiting chamber such as a monotub or martha tent. By growing your block in a controlled environment, you can reduce the risk of contamination and increase the likelihood of success. To create optimal conditions for your chestnut mushrooms, you can find the environmental parameters on our website under the "Specifications" tab. When preparing your block, wait until it starts turning orange before initiating fruiting. Once you're ready, tightly fold the excess plastic back and place the block face up. To initiate fruiting, put the bagged chestnut block in the refrigerator for around eight hours. Then remove it, and slice the bag with a single diagonal line or an X. Chestnut mushrooms can be top or side fruited, and should be placed in the fruiting chamber until you're ready to harvest. When harvesting, be sure to do so before the veil breaks, in order to prolong the shelf life of the mushrooms. If you want to grow different blocks together, keep in mind the temperature range and CO2 sensitivity of the different species. And if you encounter any issues such as unusual or stunted growth, you can refer to our troubleshooting guide. Let's get growing!

Hey there! Our chestnut (Pholiota adiposa) fruiting block is home to a popular strain that’s widely loved in Japan. You’ll be delighted by the small-to-medium, velvety mushrooms with speckled caps that resemble their namesake nut. And when you cook them up, they release a wonderful, woodsy aroma and have a crunchy texture with a rich, nutty, mildly-sweet flavor.

Just keep in mind that these chestnuts prefer cooler temperatures and need to be kept humid in their early stages, or they might dry out and stop growing. And if you’re hoping for a second crop, it can be a bit tricky, but with some extra attention and work, it’s definitely possible.

Scroll to Top