Spent substrate bag for outdoor grows (sporeless oyster mushroom)

Note! The size and price of the substrate bags has changed! The new bags are three times smaller than the old ones, so you'll need triple the amount for the same area. There are a lot more nutrients in the new bags so they'll produce even more mushrooms than before!

There will be a new batch every week, the stock is updated on Wednesdays.

These substrate bags have already produced their first harvest at Satohuone but still contain plenty of nutrients for the next ones. Contribute to circular economy and create your own mushroom bed in the garden, vegetable patch, or on the balcony. No other ingredients are needed; it's a straightforward process, and the yield can be quite abundant! Instructions are provided below.

The mushroom bed stays where you put it, and the mushrooms won't spread around in your garden. The substrate also functions as excellent mulch, so you can create the mushroom bed among your flower beds or under berry bushes. It prevents weeds from growing around the plants, and produces mushrooms at the same time. Once the mushroom bed has decomposed, it serves as a good substrate for plants.

You can create the mushroom bed as soon as the snow has melted, there's no need to wait for the soil to thaw or the frost to disappear. By making the bed early in the spring, the mycelium has time to strengthen during the cold weather, and you'll get the first harvests before the summer heat sets in. This way, you'll have higher quality and insect-free mushrooms. You can add substrate several times during the summer and get multiple harvests until the nighttime temperatures drop below 5 degrees Celsius. Even last year's mushroom bed will come back to life when you add some substrate again in the spring.

The suitable amount of substrate for one square meter or a standard pallet collar is approximately 90 kg, which is about 26 bags. For a small pallet collar, you'd need 13 bags. You can make a larger or smaller bed according to your preference, but after compaction, it should be at least 10cm thick. From a one-square-meter mushroom bed, you can harvest kilograms of mushrooms!

How to order and pick up

1. Order the desired amount of spent substrate bags from the online store and write the pickup date in the text field on the product page. Weekends are just fine too. The bags will be prepared outside for you, and you can pick them up independently starting from 10:00 on that day. New stock will be added every week.

2. Pick up the bags from the Satohuone yard on the day you specified. If you do not pick them up on the specified day, you must arrange another pickup date with Satohuone (unclaimed bags are not left outside). If, for any reason, the pickup day is not possible on Satohuone's side, we will contact you. Otherwise, the bags will be waiting for you on the specified day without any separate notice. The pickup location is at the corner of the warehouse end, next to the door of Satohuone. There might be a lot of bags at the pickup point, please only take the amount you ordered (bags are nametagged), so that the next person can get theirs too.

3. Please note that the bags are outside and exposed to the weather, so they may be damp and have holes from which the substrate can fall out a little. Bring garbage bags or protect your car with a tarp if needed. In winter, the bags may be frozen (unless they come directly from production on the pickup day). The mycelium will withstand freezing, and you can use the substrates normally after thawing.

One bag is approximately 28x20x20cm, weighing around 3.5 kg.

Driving instructions:

Drive into the inner yard of Kässälänkatu 4 (not the house on the street!) and follow the signs for Satohuone towards the right side of the hall building in front, around the corner.

Instructions for making a mushroom bed:

1. Choose a shaded and moist location for the mushroom bed. Areas in the shade of other garden plants, in depressions, or behind the garden shed may be suitable. It does not thrive in direct sunlight. The more diverse the environment, the fewer flies the mushroom bed will attract. The mushroom bed is made directly on the lawn, soil, or plants, so there is no need to dig a hole. If you are making a mushroom bed on the balcony, a wooden planter box is a good choice. Choose a box with proper drainage for excess water.

2. Open the mushroom substrate bags and crumble the contents into small pieces or a mass. Place the substrate in the chosen location and compact it well, for example, by walking on it. A compact mycelium produces more mushrooms. You do not need a planter box, but if you want, you can border the bed with stones, logs, or a planter edge. This makes compacting easier, and the result is neater.

3. Water the tamped and compacted substrate thoroughly with plenty of water. If the growing site is shady and moist, usually no more water is needed throughout the growing season (except in the midsummer heat). If you have to make a mushroom bed in a dry and hot place, and the summer is dry and hot, you may need to water the mushroom bed occasionally. Perforated plastic can help maintain moisture in such a location. Otherwise, the bed does not need to be covered. A bed made on the balcony (in a box) needs regular watering.

4. Ready! Nature takes care of the rest, and you can start harvesting mushrooms in a few weeks. Harvest the mushrooms early to beat the insects. Remove any remains or spoiled mushrooms to prevent attracting flies. When most of the harvest appears to be ready, you can add substrate for the next harvest using the same instructions. You can grow mushrooms until late autumn until the nighttime temperatures drop below 5 degrees.

5. Post a picture of your mushroom bed on Instagram or Facebook with the hashtags #sienipenkki #satohuone :) You can send the picture, for example, via email if you want your creation to be featured in the social media of Satohuone.

Feel free to ask if there's anything on your mind; I'm happy to help!