Sarah Brown
Scaling mushrooms can refer to either weighing mushrooms or preventing mushroom scales from forming. If you are interested in weighing mushrooms, you will need a good scale that can measure accurately. A milligram scale like the CT-250 Digital Scale by On Balance is recommended for substances like magic mushrooms. Alternatively, scaling mushrooms may refer to preventing mushroom scales from forming during the first flush of growing mushrooms. This can be done by maintaining a compost temperature of between 19 and 20° C and ensuring the air inlet temperature does not drop below 10° C. Increasing the fan speed can also help prevent scales on mushrooms.
| Characteristics | Values |
|---|---|
| Cause of scales | Too much air movement and/or dry air |
| Compost temperature during the first flush | 19-20° C |
| Air inlet temperature during the first flush | Above 10° C |
| Fan speed during the first flush | High |
| Recommended scale for measuring shrooms | Milligram scale like the CT-250 Digital Scale by On Balance |
| Low dose of shrooms | 0.5–2.0g |
| Full dose of shrooms | 2–4g |
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What You'll Learn
Maintaining compost temperature between 19-20°C
Maintaining the right temperature for your compost is crucial for scaling mushrooms successfully. While the ideal temperature range for mushroom growth is between 19-20°C, it is important to note that decomposition occurs most rapidly when the temperature is between 32-60°C. Below 32°C, the decomposition process slows down significantly, and at temperatures above 60°C, most microorganisms cannot survive.
To maintain the compost temperature within the desired range, it is recommended to start cooling immediately after filling, even if the compost temperature is only slightly above 19°C. This proactive approach helps anticipate any extreme temperature rises, making it more efficient to control the heat. Sprinkling water during hot periods can also help regulate the temperature. However, be cautious when using outside air for cooling, as it can be ineffective if the outside temperature is higher than the room temperature.
Additionally, turning the compost regularly can help manage temperature extremes. Turning the compost exposes new surfaces to decomposition, causing temperatures to rise, and providing oxygen to the microorganisms. During hot weather, smaller piles and frequent turning are recommended to maintain adequate oxygen levels and prevent excessive heat buildup. Conversely, larger piles may be necessary during cold weather to minimize surface heat loss.
Temperature monitoring is crucial for effective compost management. Regular temperature measurements allow you to gauge the decomposition rate and identify any hot or cold spots within the pile. By staying vigilant and adjusting the cooling and turning strategies, you can ensure that your compost temperature remains optimal for mushroom growth.
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Increasing air temperature after compost temperature rises
Increasing the air temperature after the compost temperature rises is a critical step in mushroom growth. This process is known as Phase II, where the mushroom grower manages the temperature and ventilation in the room to promote the growth of good microbes. Here are some detailed instructions to achieve this:
Firstly, understand that the compost temperature rise indicates microbial activity and recovery. The microbes responsible for converting ammonia to mushroom food grow best at temperatures ranging from 115° to 140° F. Therefore, maintaining this temperature range for an extended period, ideally 4 days or more, will maximise the food available for the mushrooms.
To increase the air temperature, the grower can manipulate ventilation. Ventilation regulates temperatures and provides uniform air movement. It also supplies oxygen to the microbes while removing CO2, heat, and water vapour. However, excessive ventilation can lead to heat loss, so a balance must be struck.
The ambient temperature of the room also influences compost temperatures. Insulation can be used to reduce heat loss, especially in smaller spaces. Additionally, moisture content plays a role in temperature regulation. Drier compost mixtures tend to heat up and cool off more quickly, so maintaining adequate moisture levels is essential for microbial growth.
Finally, the physical characteristics of the compost ingredients, including particle size and the C/N ratio, impact temperature. Proper moisture balance and adequate airflow are crucial. Brown materials like leaves or woodchips help manage moisture levels and provide structure for oxygen flow. Turning or aerating the compost pile can dissipate heat if it gets too high, as beneficial microbes can die off at temperatures above 65°C.
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Preventing air inlet temperature from dropping below 10°C
While there isn't any specific information about preventing the air inlet temperature from dropping below 10°C, it is known that controlling temperature levels is essential for successfully growing mushrooms. You can use equipment such as a thermometer or temperature sensor to monitor the temperature. If the temperature is too low, you can use a heating pad to raise it. Conversely, if the temperature is too high, a cooling fan can be used to lower it.
To prevent the air inlet temperature from dropping below 10°C, you can use a combination of these tools. A thermometer or temperature sensor will help you monitor the temperature and ensure it doesn't drop too low. You can set up a heating pad to turn on automatically when the temperature approaches 10°C to maintain a suitable environment for mushroom growth.
It is important to place the heating pad in a well-ventilated area to avoid overheating and ensure consistent temperature distribution. Additionally, regular calibration and maintenance of the heating pad and temperature sensor are crucial to ensuring accurate temperature control.
Another strategy to prevent the temperature from dropping too low is to utilise insulation. Properly insulating the growing area can help maintain a more stable temperature. This involves sealing any gaps or cracks that may allow cold air to enter and using insulating materials to retain heat.
By combining these strategies, such as using a heating pad, insulation, and temperature monitoring, you can effectively prevent the air inlet temperature from dropping below 10°C when growing mushrooms. Maintaining the appropriate temperature range is crucial for optimising the growth and development of mushrooms.
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Increasing fan speed
To grow mushrooms, creating a stable climate is essential. A stable climate is determined by the fresh air inlet, cooling, and heating. One important aspect of creating a stable climate is the fan speed.
The speed of the fan influences the temperature of the air discharged by the cooling coil. If the fan speed is low, only a few cubic meters of air will flow through the climate installation. This means the air will pass through the cooling coil more slowly, giving it more time to adopt the temperature of the coil. Therefore, the cooling temperature will be lower. On the other hand, if the fan speed is high, more cubic meters of air will pass through the cooling coil. This means the air will have less time to cool to the temperature of the coil, resulting in a higher cooling temperature.
The difference between the compost temperature and the air temperature is known as "activity," which is the main energy source for mushrooms. Activity is influenced by air circulation in the growing room. More circulation provides more cooling, which is beneficial when there is a lot of activity, especially during mycelium growth. Therefore, a higher fan speed is recommended during periods of high activity, such as during mycelium growth and the first flush.
To maximize the benefits of fans in your mushroom-growing setup, consider the following:
- Strategic placement: Position fans to ensure even air distribution throughout the cultivation area.
- Appropriate size: Choose fan sizes suitable for your grow space. Smaller areas may benefit from smaller, low-speed fans, while larger spaces may require larger, high-capacity fans.
- Timer or controller: Use a timer or controller to regulate the fan's operation, allowing for intermittent air exchange as needed.
- Regular maintenance: Keep your fans clean and free of dust to maintain their efficiency.
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Hanging perforated plastic film along lower beds
To scale mushrooms successfully, it is recommended to hang perforated plastic film along the lower two beds in the aisles below the air ducts. This is a preventative measure to reduce air movement, which can cause scales on the mushrooms.
Hanging perforated plastic film along the lower beds:
First, you will need to purchase or source perforated plastic film. This film is designed to allow airflow while also providing a barrier to reduce air movement. It is a common practice to use this film in mushroom cultivation to prevent scales on the mushrooms.
Next, cut the film to size, ensuring it will cover the lower two beds in the aisles below the air ducts. The film should be wide enough to reach across the bed and long enough to hang down to the ground or a suitable height to reduce air movement.
Then, prepare the film for hanging. You can do this by creating a hanging mechanism with string, twine, or wire, depending on what suits your setup best. Ensure that the hanging mechanism is secure and can bear the weight of the film.
After that, hang the perforated plastic film along the lower beds, ensuring it is securely attached and covers the entire bed. You may need to use weights or stakes to keep the film in place, especially if it is outdoors and subject to wind.
Finally, monitor the mushrooms regularly to ensure the film is effective and make any necessary adjustments. It is important to take these measures before and during the first flush to prevent scales and other issues during mushroom growth.
Some mushroom growers have also suggested using perforated metal sheeting or mesh as an alternative to plastic. However, this method may result in too much airflow, causing the mushrooms to dry out. Additionally, mycelium interacts with aluminum, so steel or a stronger metal would be necessary.
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Frequently asked questions
Mushrooms scale due to too much air movement and/or dry, cold air.
The compost temperature should be between 19 and 20° C during the first flush.
To prevent scaling during the first flush, increase the fan speed and hang perforated plastic film along the lower two beds in the aisles below the air ducts.
