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Mushroom bed cooling

Mushroom bed cooling

For Mushroom bed cooling, heat exchangers are placed directly underneath the compost layer. At the beginning of the cultivation period, the heat exchangers cool the compost directly at the bottom of the cultivation bed, which means the air temperature in the cultivation cell can remain higher than when no bed cooling is used. As a result, the mycelium grows faster through the casing soil, shortening the growing time. At the end of the cultivation period, the compost can be heated with the heat exchangers to increase the growing activity.

Acceleration of mushroom cultivation

The best temperature for mycelium to grow is 25ºC. Due to the compost’s own activity, and by adding supplements to the compost, the temperature of the compost rises above 25°C. Mushroom growers correct this by lowering the temperature of the cell air to 18°C. However, this is not optimal because mycelium grows better if the cell air temperature is around 22°C. Using mushroom bed cooling, the temperature of the compost layer can be controlled directly so the cell air temperature can be higher. As a result, the mycelium grows faster through the casing soil, and mushroom cultivation time is reduced by a few days.

Advantages of mushroom bed cooling

  • Rapid growth of mycelium through the casing soil;
  • The mushroom cultivation time is reduced by a few days (1st flush harvest at 13th/14th day);
  • Casing material builds up faster and more evenly;
  • Strong mycelium growth through the casing soil, even with active compost;
  • Reduced chance of overheating the compost due to improved control of the compost temperatures;
  • Four-week schedule possible; Second flush harvest will not be missed;
  • Increased spread in flushes for picking companies;
  • Better control of work processes for cutting companies;
  • Energy saving by direct cooling (25%) and heating (15%);
  • Energy saving on humidification through better compost control;
  • Energy saving on steam pasteurization;
  • Return on investment period 3 to 6 years;
  • Easy system, also easy to install in existing set-ups.

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