Food Refrigeration

Mechair’s Controlled Onion Cold Storage is a specially designed storage facility where temperature, humidity, and ventilation are carefully regulated to preserve the quality of harvested onions for longer periods – typically 6 to 8 months or even up to a year depending on the variety.

Unlike traditional storage (which uses open or ventilated godowns/sheds and depends on natural air conditions), controlled cold storage uses modern refrigeration, humidity control, and airflow systems to create ideal conditions for onions.

• Temperature maintained at 27°C
• Relative humidity controlled at around 65–70%
• Good air circulation to prevent moisture build-up and rotting
• Proper stacking and handling systems to avoid pressure damage in a very economical way

Extends shelf life: In controlled onion cold storage, onions can be safely stored for 6-8 months without sprouting or rotting – compared to just 2-3 months under traditional storage methods.

Reduces post-harvest losses: Proper cold storage conditions significantly minimize the risk of fungal and bacterial infections which can lead to spoilage.

Maintains quality: Controlled storage helps maintain the texture, flavor, and nutritional value of onions, preventing them from becoming soft or developing off-flavors.

Market timing: Farmers and distributors can store onions until market conditions are favourable, allowing them to sell at higher prices with optimal quality. Our onion cold storage gives marketable time from 4-8 months.

Reduces waste: By extending the shelf life of onions, cold storage reduces spoilage, which benefits both producers and consumers.

Cost-effective: While setting up a controlled onion storage facility may involve initial costs, the long-term savings from reduced spoilage and better market timing can be substantial.

Flexibility in distribution: With controlled onion storage, at a temperature of 27°C, no reheating is required. This allows onion distribution over a longer period in batch-wise quantities, helping to meet demand fluctuations without compromising quality.

Suitable for export: It also helps maintain the high quality required for international markets.

Reduces weight loss: By controlling moisture loss, it reduces weight loss from 30–40% in open storage to 5–10% in cold storage.

Supports processing industries: This cold storage also provides a year-round supply for dehydrated onions, onion powder, and pickling industries.