Frequently Asked Questions


Grow-kit Know-how

    • a step-by-step instruction card

    • the ready-to-grow mushroom block (inoculated with mushroom mycelium)

    • The Substrate is Hardwood sawdust for our Lions Mane or Straw for our Oyster varieties

     

  • The white stuff covering the sawdust block is mycelium. Mycelium is the living organism that will fruit the mushrooms.

    We've grown this for you over the last few weeks in a process called incubation. During incubation the mycelium colonises the substrate (sawdust or straw), turning it white and it is now ready to fruit delicious mushrooms.

  • You should start using your mushroom grow kit as soon as you get it, but we know that might not always be possible, like if you're giving it as a gift or if you’ll be away.

    For Pink Oyster grow kits: We recommend starting these kits as soon as you have received it as they do not store well and can't be stored in the fridge.

    For storing a kit, choose a Gold Oyster or Lion's Mane variety, as they can last a couple of months. Most kits can be stored in the fridge for 3-4 months. Keep the kit in the fridge to hibernate the mycelium and prevent premature growth. Avoid temperatures over 30 degrees Celsius, and never leave the kit in a hot car or direct sunlight, as heat can kill the mycelium.

  • Mushrooms grow best in cool, damp areas of the forest that offer protection from the weather. To mimic this at home, consider finding a similar spot in your house or . Many suggest using the bathroom due to its humidity from showers, but proper airflow is also essential as small spaces can limit oxygen.

    A good option is to place your grow kit on the kitchen counter, away from direct sunlight. This makes it easy to check on your mushrooms daily and reminds you to spray them regularly to maintain humidity. Keep the kit away from wind and heaters that can dry it out. Air conditioning may also cause dryness, so mist your kit often if it’s in an air-condirioned room.

    It's also a good idea not to place your grow kit next to potted plants or soil as these harbour other fungi, moulds and fungus gnats which can contaminate your kit. 

  • Each individual grow kit has its own specific ideal growing conditions that are optimal for successful development, but there are also some common rules and guidelines that you should follow.

    Check the side of your grow kit box for the best growing temperature for the mushroom variety you have. These temperatures are also listed on the product page of each kit on our website.

    As a general rule, the warmer the temperature the faster the mushroom growth. If it is cold, your mushrooms will grow slowly. Extreme heat and extreme cold can adversely affect and even entirely prevent mushroom growth. 

    If you live in a warm climate we recommend choosing a grow kit that can cope with the warmer temperatures.

    If you can control your growing environment we would recommend a stable temperature between 18-22 degrees Celsius and 75% - 90% humidity. 

    These ready-to-grow mushroom kits are designed to easily grow in most people's houses year-round, so please don't be too worried about achieving ideal conditions. We've had customers grow our kits all the way from Thursday Island to Tasmania and everywhere in between!


    Pink Oyster Grow Kit

    Fruiting temperature: 20°C to 30°C

    The Pink Oyster Mushroom Grow Kit loves warm weather - they really cannot stand the cold

    Golden Oyster Grow Kit

    Fruiting temperature: 18°C to 30°C

    They are good to grow almost all year round.

    Lion's Mane Grow Kit

    Fruiting temperature: 16°C to 24°C

    This roar-some variety likes to chill out in cooler climates. They do not like it breezy so please keep the lil fusspots out of draughts.

  • Mushrooms are not plants so don’t water them the same way.

    You don't need to water mushrooms like a plant. The spray bottle is for creating humidity. Humidity is a key factor for successful mushroom growth. Spray the area around your kit with a few pumps of water whenever you have a chance, at least 2-3 times a day.

    If you can see condensation underneath the plastic flaps of your X cut area this is enough water. Too much water on the surface of the block can cause problems. If it's looking a little dry, increase your frequency of spraying. Continue to mist the air around your mushrooms as they grow to prevent them from drying out.

    Avoid missing a day of misting, but if necessary, create a mini micro-climate to maintain humidity. You can do this by wrapping a wet tea towel around the kit's base or placing the kit near a sink filled with water.

  • After harvesting your first flush (flush = the term for a mushroom crop), clean up your block by removing any leftover mushroom debris. Debris includes small mushrooms that didn’t grow fully or bits left behind after harvesting. Be sure not to remove the white mycelium coating the block – this is the living network we want to nurture for more mushrooms!

    If a second flush starts on its own, simply pick up at Step 2 on your instruction card. Submerge it overnight in a bowl of water with the cut side facing down. The next morning, drain any excess water from the bag, let it drip-dry for a bit, and then return it to the box on your kitchen counter. Within 7–14 days, you'll notice mushrooms starting to "pin" (tiny growths), and they’ll be ready to harvest in about a week!

    For a quicker second crop, you can cut an X on the opposite side of the kit immediately after harvesting your first flush and grow mushrooms from that side.

    Keep in mind, the second flush will usually take longer and yield fewer mushrooms than the first – this is completely normal.

    On average, our ready-to-grow mushroom kits produce 2–3 flushes. Enjoy the harvest!

  • How to dispose of your kit

    Once your mushroom kit has finished fruiting and it does not want to produce anymore mushrooms, remove the substrate from the plastic bag and either put it around your garden or indoor plants as mulch, or place in your compost or worm farm.

    This "spent" substrate is still bound with mycelium and is great for your garden. 

Advice

  • If your Lion's Mane grow kit turns yellow or brown, it indicates that it's time to harvest your kit, as growth has ceased. This discoloration can also suggest that the kit is placed in an excessively dry environment or too close to a heat source.

  • Why Does Mold Form?

    Unfortunately, the same conditions that are perfect for growing mushrooms also appeal to other fungi, like mold – yuck!

    Mold is more likely to appear in areas of the kit where the substrate (the growing material) is exposed and the white mycelium hasn’t fully colonized. This can happen due to factors like damage during transit, heat exposure, over-watering, or storing the kit for too long before use.

    How to Prevent Mold Issues

    Mold problems are rare with most grow kits, but here are some simple tips to keep your kit healthy:

    1. Avoid Warm, Humid Weather
      Mold thrives in warm, humid environments, especially between 25–30°C (77–86°F). If you’re experiencing hot, humid weather, it’s more likely mold could develop. In these conditions, consider waiting to grow your mushrooms or placing the kit in a cooler, well-ventilated spot. Mushrooms grow best in temperatures between 16–20°C (61–68°F).

    2. Keep Away from Soil and Plants
      Soil is full of mold spores, and indoor plants or potting mix can release these into the air. To reduce the risk, avoid placing your kit near plants, soil, or garden areas.

    3. Clean Your Cutting Tool
      Before opening your kit, thoroughly clean your knife, scissors, or other cutting tool with hot soapy water. For an extra precaution, wipe it down with rubbing alcohol (isopropyl alcohol), but don’t stress—hot soapy water works just fine!

    4. Minimize Touching the Substrate or Plastic
      Here’s a fun fact: your hands are home to countless microbes, including mold spores. Wash your hands well before handling the kit, or avoid touching the substrate and plastic altogether to prevent transferring contaminants.

    5. Avoid Over-Watering
      Your kit doesn’t need to stay soaking wet. Over-watering can damage the mycelium, leading to patchy growth and increased mold risk. As long as you see condensation on the plastic flaps, the kit has enough moisture. Misting is meant to create humidity for growth, not to water the mushrooms.

    6. Start Your Kit Right Away
      For the best results, open your kit and begin growing as soon as it arrives. Storing it too long can weaken the mycelium, making it more susceptible to mold.

    If Mold Develops

    If you notice mold in your kit, check out our article How to Identify Contamination in Mushroom Growing for tips on what to do next.

    Still need help? Send us a message, and we’ll assist you!

  • To effectively avoid spores gathering on your kitchen counters or any other surfaces where you have placed the kit, it is advisable to place a tissue or a paper towel underneath the kit. This will help collect any falling spores, thereby keeping your kitchen tidy and minimizing any potential mess.