Curd is fermented food product which is increasing it’s consumption due to it’s benefits for human health.
Cooling for curd from 45 °C to 15 °C needs to be done in a maximum of 2 to 3 hours which ensures high quality of curd. Since the curd needs to attain temperature within 3 hours, the air flow in the room has to be very high.
Importance of Blast Chiller in Curd Manufacturing
1. Slow down the fermentation process
The longer you kept the curd in incubator, the faster the fermentation time will be, which results in grainy texture and increase in lactic acid.
Blast Chilling of curd will slow down the production rate of acid, with less probability of reducing the dairy proteins.
2. Increase life and maintain quality of curd
Cooling is necessary to maintain taste, ensuring high quality and increasing life of curd.
Preserving curd in 5 °C to 8 °C after Blast Chilling will reduce production of lactic acid.
Frequently asked questions
Question: What is the process of Curd manufacturing?
Answer: Curd manufacturing is usually done in 3 stages:
Stage 1: Incubation chambers are designed to ensure temperature of 43 °C
Stage 2: Blast chilling ensure pull down product temperature from 43 °C to 20 °C in 2 hours
Stage 3: Storage room provide storage at 2 °C to 4 °C & support longevity by increasing the shelf life
Question: What are the process of Curd manufacturing?
Answer: The air exchange rate is what ensures good air quality in the cold store, but the flow rate also affects the cooling of the product. Since the curd needs to attain temperature within 2 hours, the Air flow in the room has to be adequate.
Question: Confused in choosing of Freon Vs Ammonia refrigerant technology in a curd manufacturing?
Answer: (a) A small scale manufacturer of curd of production of up to 2-4 tons per day would prefer a Freon unit over an Ammonia unit.
(b) A medium scale manufacturer of curd of production of up to 5-10 tons per day may choose Freon unit or Ammonia unit.
(c) A large scale manufacturer of meat should always prefer an ammonia unit over a Freon unit.