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Discolouration of Mushroom

-Taj 2 Mushroom

In very dry periods, it is difficult to keep relative humidity (RH) in the growing rooms high. Various measures are needed to keep a high RH in the growing room, if the moisture content of the outside air is extremely low.

Firstly the C02–level must be kept as high as possible. The maximum CO2-content in a growing room with mushrooms on a bed is 1800 ppm. If CO2 level are higher the effect on mushroom quality is detrimental causing them to discolour more quickly.

If a high RH cannot be reached its better to let the RH drop a little too low and create a more stable climate in the growing room with less circulation, to keep the microclimate in good shape. The RH can be allowed to drop lower by setting greater margins.

If the RH drops too low i.e. an average of more than 3 % lower than normal only then activate humidifying by humidifiers or by misting.

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