Why use humidification in mushroom cultivation?

Humidification 28 July 2025

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The climate in mushroom cultivation is crucial. For an ideal harvest, temperature, humidity and CO₂ levels must be precisely regulated. This applies not only during mushroom production, but also during the preparation and drying of the compost. Humidity plays a major role in this.

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Iris van Knippenberg

Marketeer

Without a well-regulated humidification system, growers can encounter a variety of problems. Below, we explain the consequences of insufficient or no air humidification in mushroom cultivation.

Effects of too low or too high humidity on mushrooms

Dehydration

Mushrooms consist largely of water. If the humidity is too low, they lose this moisture, which leads to:

  • Wrinkled and dried-out mushrooms
  • Cracked or deformed caps
  • A lower yield and reduced quality

Uneven size

Unstable humidity leads to uneven growth. The mushrooms can become too small or too large. With stable humidity, the growth rate remains uniform, resulting in a consistent end product.

Temperature and evaporation

Good humidification also helps to regulate the temperature in the cultivation room. Evaporation during humidification creates natural cooling, preventing overheating.

Scaling

If the humidity is too low, the outer layer of the mushroom dries out, resulting in a rough and scaly surface, also known as scaling. This not only reduces the quality but also the shelf life of the mushroom.

Mould and bacterial growth

Excessive humidity can lead to undesirable bacterial or mould growth. The right humidity prevents these problems and contributes to a healthy and stable growing climate.

With humidification, you can control the humidity for each phase, ensuring that it is always optimal for your mushroom cultivation.

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