Carel

Antiques, art galleries & museums
Automotive & aerospace
Clean rooms
Cold stores
Crop storage
Data centres
Doctors surgeries
Electronics industry
Explosives industry
Food industry
Hatcheries
Hi-tech microchip manufacture
Hospitals
Libraries & archives
Offices
Offshore platforms
Paper manufacture
Pharmaceutical manufacture
Photography laboratories
Plant propagation
Printing industry
Proofing ovens
Textiles industry
The Home
Timber industry
Tobacco industry
Wine & Whiskey industry
Steam room
Chillers & Dry Coolers
Ambient Cooling
Adiabatic Cooling Ducted
Cold stores
Productivity Productivity
Product Quality Product Quality
Bacterial & biological contaminants Bacterial & biological
contaminants
Capillary forces Capillary forces

Cold stores

In cold stores for organic products, such as fruits and vegetables, the humidity is kept very high, to avoid deterioration and weight loss. The aim is in fact to avoid the loss of water from the foodstuff and consequently changes not only in the weight, but also in the appearance, nutrition and other characteristics – ultimately the quality of the product.

The main task of the humidification system is to make up for the moisture that condenses on the evaporators in the cooling system; without this, the air would become dry very quickly, causing deterioration of the foodstuffs.

Recommended temperature and humidity values for different fruits and vegetables:

Temperature °C Relative humidity %
Apple 0-4 90-95
Beatroot 0 95-99
Cabbage 0 95-99
Carrots 0 98-99
Cauliflower 0 95
Cucumber 10-13 90-95
Eggplant 8-10 90-95
Letuce 1 95-99
Leeks 0 95
Oranges 0-4 85-90
Pears 0 90-95
Pumpkin 10-10 70-75
Spinach 0 95
Tomatoes 13-21 85-90