These systems are established in order to store the food items in longer periods under conditions suitable for the controlled cooling and humidity conditions, also the inside air temperature is isolated against the outside hot temperature atmosphere conditions and against moisture gain. There must be equal temperature and moisture level in all volume. Extreme air circulation can cause the water loss in the foods. This condition is unnecessary and harmful as well. For this reason, good air circulation is beneficial for this systems. The usage area of cold room systems are classified below;
Cool housing (+5/+15 oC)
Green pepper, tomato and banana etc. are housing in the range of this temperature.
Cold Housing (-5/+5 oC)
Housing for fresh foods
Frozen Housing (-15/-25 oC)
Housing for frozen foods.
Qucik Freezing (-30 / -45 oC)
Quick freezing Is process that the central temperature of the foods are decreased to -18 degree in a short period like 4 -7 hours. The dimension of the cold room depends on the amount, type and package of the stored materials