Transportation of vegetables in the cold chain

Vegetables are perishables and some of them have a shorter shelf life than others. With the given climate of people looking to eat healthier and remain healthy, the focus on fresh vegetables is a lot more than ever before. 

When a vegetable is kept in poor conditions, it leads to a condition called “soft rot’ where the product slowly starts decaying. This results in the growth of bacteria in these products which is the same bacteria which causes food poisoning in humans. These vegetables are harmful and if they start rotting earlier, will need to be replaced or thrown away, again leading to a loss in revenue and an increase in greenhouse gasses into the atmosphere. 

Sometimes for vegetables, the cause of concern lies in the temperature dropping during transportation. When this happens, the consignment goes to waste completely. For this reason, it is very important to have tracking devices installed during the transportation so that any changes in temperature can be addressed and adjusted. Tessol’s TAMsys, a real time monitoring device ensures temperature monitoring throughout the delivery process. 

What happens when the engine fails? In a country like India, engine failure is not the only reason why a delivery can get delayed. External conditions such as traffic and Indian ambient temperatures also lead to consignment damage. At Tessol, we are well aware of this and hence all our solutions are engine and fuel independent. We use PCM based technology where the PCM is charged at the warehouse at temperatures of freezing (below zero) to 4C, for vegetables before being placed in the consignment box. 

For vegetables, Tessol uses blow and chill trucks, which are divided into three sections. Frozen, chilled and ambient. Each compartment has differently charged PCMs and are divided by which vegetables needing different temperatures can be stored separately. The frozen section is 0C and below, the chilled section is 2C to 8C and the ambient section is +15C. These trucks are ideal for tertiary distribution. For secondary distribution we use insulated Zen Boxes which are lined with the conditioned PCM before the consignment is placed. For our ZEN boxes, our PCM cartridges are placed in refrigerated boxes and then the consignment is placed. 

For last mile distribution of fruit and vegetables, we have our delivery bags which are lined with the PCM before being sent out for home delivery. These bags are available at temperatures of 2C to 8 C and maintain temperatures even during Ambient Indian Conditions, with multiple drops and no stringent SOPs. 

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