Welcome to the mushroom growing adventure! This kit will allow you to easily grow your own mushrooms, whether at home, at school, or with friends. Discover the joy of watching and harvesting your oyster mushrooms.

Preparation Time: 30 minutes
Harvest Timeframe: 4 to 6 weeks

Mycelium Storage
If you do not use it within the week following receipt, store the mycelium in the refrigerator for up to 1 month.

Cultivation Steps

Start by cleaning all work surfaces with soapy water as well as your hands and forearms. Work in a clean environment.

Bag Preparation
Distribute the lime among the 5 bags (one teaspoon per bag). Add 2 liters of water per bag and let the pellets absorb the water (+-5 minutes).
For mini-kits, the lime is already included in the pellets. The lime aims to enrich the substrate with calcium and raise the pH (=make it more alkaline) to limit the growth of bacteria and molds. Since lime can be slightly irritating to sensitive skin, avoid contact or wash your hands afterward.
Mycelium Addition
Add ±300 g of mycelium per bag.
Bag Sealing
Seal the bags with adhesive tape or a sealer.
Mixing
Gently mix the bags to evenly distribute the mycelium throughout the substrate.
Colonization
Leave the bags for 2 weeks at around 20 °C in the dark to allow the mycelium to fully colonize the substrates.
Opening
Expel the air from the bag and make a 5-10 cm cut on the side of the bag at the substrate level to allow the oyster mushrooms to develop. We recommend sealing the filter at this point with tape to prevent mushrooms from trying to grow out there.
Humidity
Maintain humidity by spraying daily or placing the bag on a large plate with a damp cloth underneath.
Growth
Oyster mushrooms will start to develop by opening in 1 to 2 weeks.
Harvest
Harvest before the caps lift and release their spores. Be careful, they grow fast! If you harvest them a little later, it’s not a problem, but they might be a bit less tender and flavorful.

Each Bag Can Produce 2 to 3 Harvests: In total, 600 g of oyster mushrooms per bag, or 3 kg for the 5 bags. After each harvest, let the bag rest for 3-5 days before rehydrating it by soaking the bag overnight in a basin of water.

To spread out the harvests, place some bags in the refrigerator or in a cooler room after colonization.

Objects made of mycelium?

You can also try the "mycomaterials" mode to make objects from mycelium by choosing the "reishi" variety. More information in our mycomaterials tutorial.

Choose the Mini or Maxi-Kit DIY?

Mini-Kit DIY	Maxi-Kit DIY
✔️ 1 bag with breathable micro-filter	✔️ 5 bags with breathable micro-filter
✔️1 kg of straw pellets (certified organic) and lime	✔️ 5 kg of straw pellets (certified organic) and slaked lime
✔️ 300 gr of oyster mushroom mycelium	✔️ 1.5 kg of oyster mushroom mycelium
✔️ Instructions for use	✔️ Instructions for use
	✔️ Pair of gloves
	✔️ 1 mini spray
👉 Harvest potential: 0.6-1kg of oyster mushrooms	👉 Harvest potential: 3-5 kg of oyster mushrooms

Precautions

Work as cleanly as possible: wash work surfaces and your hands before starting.
Lime, although extinguished, can be irritating to the hands. Avoid direct contact or wash your hands immediately.
Durations may vary depending on temperatures. Cold slows down the mushroom's metabolism, which can affect the distribution of harvests.
It is recommended to use the mycelium all at once. If you still plan to use it multiple times, make sure to work cleanly, properly reseal the bag after use. Store it in the refrigerator and use it within 2-3 weeks.

Important Note: Most myceliums are made to order. Depending on available stock, delivery time can take 1 to 3 weeks.

Educational Pack

If you want to organize an activity with your students or children about mushrooms, this is the perfect kit.

Mushroom Educational Pack

Educational Objectives

Understand what a mushroom is and its role in nature.
Explore the life cycle and metabolism of mushrooms.
Discover the different kingdoms of living organisms and the classification of mushrooms.
Raise participants' awareness of the importance of mushrooms in ecosystems.
Identify the main families of mushrooms.

Topics Covered

Definition of a Mushroom
Understand that the mushroom is the fruiting body of a mycelium, not a plant.
Mushroom Metabolism
Study how mushrooms feed and grow.
Mushroom Reproduction Cycle
Observe and explain the stages of mushroom growth.
Kingdoms of Life
Place mushrooms within biological classification.
Ecological Role
Discuss the importance of mushrooms in ecosystems, as decomposers and symbionts.
Mushroom Families
Discover the characteristics of the main families: Basidiomycetes (like oyster mushrooms), Ascomycetes, and Zygomycetes. Understand the functional differences between saprophytic, symbiotic, and parasitic mushrooms.

Scientific Project Ideas on Mushrooms for Children

Compare Environments

Get two mushroom growing kits of the same type and slightly modify their growing environments. The main factors for mushroom growth are humidity, light, and airflow. You can try changing the amount of humidification of one kit, changing the amount of sunlight a kit receives, or changing the amount of airflow of a kit. The kit receiving different conditions is the experimental kit. Keep the other kit in ideal conditions as a control and observe what happens! Remember, change only one factor at a time to get the best possible data! Does this change the number of mushrooms that grow? Does it change the distribution of mushrooms on the block? Do the mushrooms in the experimental kit look different? Record your observations!

Describe and Identify Mushrooms

Although you already know what type of mushrooms your kit will grow, you can work on the mushroom identification process using your kit. Photograph or draw your mushrooms through the different growth stages, and demonstrate how to use the following techniques to identify mushrooms:

Look at the mushroom: What is the color of the cap? How is the stem formed? Is the cap convex, flat, conical?

Look under the cap for spore-producing structures. Does the mushroom have gills, pores, or teeth? Does the mushroom have warts, a veil, a ring?

Touch the mushroom: Is the top of the mushroom cap smooth? Velvety? Dry? Scaly? Is the stem (or stipe) fuzzy or fibrous?

Smell the mushroom: Many mushrooms are identified by their odor. These smells can be the normal mushroom smell we are all used to with button mushrooms, or they can smell rotten or like almonds, or even like cinnamon.

A spore print

Remove the stem from the cap and place the cap with the gills facing down on a sheet of paper. Some mushrooms (like shiitake) produce white spore prints, so you might want to make one on white paper and one on colored paper. Cover the mushroom caps with a bowl or other lid to prevent drafts from moving the spores and leave them for a few hours. After waiting, you should be able to carefully lift the mushroom caps and see the spores left behind on the paper! Mushrooms leave spore prints in many different colors, so this is a useful technique!

You can also find a wild mushroom (during autumn or spring) and compare your observations between your home-grown mushrooms and wild mushrooms! Please note: Wild mushrooms should never be consumed without 100% positive identification!

Reproduce the mycelium

Take a nice piece of mycelium and mix it with different substrates such as coffee grounds, pasteurized straw, cardboard, wood chips, etc. See how it reacts and how the mycelium manages to colonize or not these different environments.

Observe under the microscope

If you have a microscope, you can observe the "hyphae" (mycelium filaments), or the mushroom spores. Compare with other varieties of mushrooms collected in the wild, for example.

These are just a few ideas for science projects about mushrooms; use your imagination! Be curious! Ask questions, and see if your mushroom growing kits can help you answer them! Mushrooms have a lot to teach us about their life cycle, their ecosystem, and the global environment. But most of all, have fun!

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