• Micah Munyard

Humidity Control 101- The Effect of Temperature Changes

Creating the optimum environment for your product is an important task. You may be a restaurant storing food, a butcher storing meats, or a florist storing flowers. Whatever the case, the environment in which your product is stored must be regulated. But how do you go about creating these optimum levels? One area to look into is humidity levels.


Controlling humidity levels in any given environment can be a tough task. There are many different reasons as to why there may be an excess or lack of humidity. The most common of these is temperature changes. Before we explore further, let's define humidity.


Humidity control refers to the:

Regulation of the degree of saturation (relative humidity) or quantity (absolute humidity) of water vapour in a mixture of air and water vapour. Humidity is commonly mistaken as a quality of air. - McGraw-Hill Concise Encyclopedia of Engineering.

First and foremost, humidity does not refer to the quality of air. If you're concerned that the humidity in your storage environments is lowering quality, then you can be reassured that it's not the case.


Changes in Temperature

Many commercial refrigeration environments experience excess condensation levels because of the changes in temperature. If you are cooling products through a refrigerator, the likelihood is that the simple action of opening and closing your refrigerator door is creating higher humidity levels. This is especially prevalent in hotter locations. Australia experiences hot summers. This increases the chances of hot air entering the refrigerator when the door is open. If you live in a hotter location then you may find increases in humidity levels during the summer period.

Another common issue adding to changes in temperature is the age, cleanliness and positioning of your evaporator. The evaporator is the device in your refrigerator keeping your environment cool. Watch the video below for more details, but suffice to say that it has to suck in hot air and push out cold air. If the position of your evaporator is close to the entrance of your refrigerator, every time the door opens you will suck in hot air from outside creating an unbalance in temperature and increasing humidity.


The age and cleanliness of your evaporator can also affect efficiency. A simple clean once every 2 months will drastically increase the lifespan of an evaporator. All too often, evaporators are left to collect dust and other particles lowering air quality and creating pockets of mould and dust build up on refrigerator walls.


In Closing

If you are experiencing higher levels of humidity than you require, then perhaps you need to think about controlling temperature through temperature control. If these small changes are implemented, your products should last longer and be kept in better condition than they were at first.


Humitech

WA's Premiere provider in humidity control solutions