Milk Cooling Prototype and its Economics

DOI: 10.22161/ijeab.112.8

Abstract:
Milk is nearly complete food but as well as it is very perishable in nature, rapid preservation techniques are required to preserve its quality and to increase its spoilage time. Although, milk is nearly sterile when it comes out from the udder of a milch animal but when microbes get entry they deteriorate its quality. With the 23% contribution or 1st in milk production, India is not even in the top 10 in the export list of milk and milk product due to quality issues; so, there is need to preserve the quality of milk right from farm. In India 57% out of total milk production is produced by small farmers who have average herd size less than 3 milch animals so, there is need of small scale cooling system. The present study is focused for the small scale milk cooling system to maintain the cooling chain from farm to consumer.A vacuum chamber along with vacuum pump was used to for the cooling of milk. Milk cooled down from 36.3oC to 21.5oC just by using water as refrigerant, which may prevent milk spoilage up to 8 hours. The cooling cost is Rs 3.12 per litre of product.

Keywords:
Dairy, Milk production, Vacuum chamber, Vacuum pump, Milk spoilage

Article Info:
Received: 01 Feb 2026; Received in revised form: 03 Mar 2026; Accepted: 13 Mar 2026; Available online: 21 Mar 2026

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