Fruit and vegetable preservation technology and cold storage humidification tips

Fruit and vegetable preservation technology and cold storage humidification tips

1. Cold storage preservation knowledge

In order for fruits and vegetables to fetch a good price in the market and achieve off-season sales, it is necessary to ensure that the fruits and vegetables have pure taste and bright appearance, even to the same level as when they were just harvested. Then fruits and vegetables not only need controlled atmosphere technology to suppress the respiration of fruits and vegetables, but also control the relative humidity in the cold storage. Relative humidity will directly affect the quality of fruits and vegetables. If the humidity is too low, the fruits will lose weight, become dehydrated, and change flavor. Not only will the effect of controlled atmosphere preservation not be achieved, but the quality and economic value of the fruits will also be reduced, affecting sales.

So how to solve this problem?

In fact, it is very simple. That is to install a humidifier in the cold storage to increase the air humidity in the cold storage. Cold storage often suffers from frost on the cooling pipe system, which hinders heat conduction and affects the cooling effect. Due to frost, the humidity in the cold storage is too low, so the humidity in the cold storage should be adjusted by spraying and humidifying in time to balance the water content of fruits and vegetables with the air humidity. The problem of dry consumption can be solved very well. Even if it is present, the dry consumption can be controlled below 1%, and the loss will be much less.

2. Cold storage fresh-keeping humidifier

Special humidification equipment for cold storage, Duokai uses a split-type ultrasonic humidifier.

working principle:

The split-type ultrasonic humidifier uses electronic overfrequency oscillation (oscillation frequency is 1.7MHz). Through the high-frequency resonance of the atomizer plate, the water is thrown away from the water surface to produce natural and elegant water mist. Fine mist particles of 1-5 microns float in the air. , thereby increasing the relative humidity of the air. The split-type ultrasonic humidifier can not only uniformly humidify a large space, but also perform local humidity compensation in special spaces, and has high flexibility of use. The ultrasonic split humidifier innovatively adopts the design of separating the power distribution cabinet and the atomizer water tank, which effectively prevents the electronic components in the power distribution cabinet from getting damp and improves safety and service life.