What are Blast Chillers and Blast Freezers: The Exclusive Guide

 


Frozen and instant food is gaining more and more popularity every day. It is an ideal choice for people who work and do not have anyone at home to cook fresh food. Frozen food includes many ready-to-serve meals, frozen pizza, frozen burgers, and frozen vegetables like peas, corn, spinach, etc. All these items are readily available in supermarkets near you. All you need to do is buy them, keep them refrigerated in your freezer and then microwave them and eat. They are much healthier than the fast-food available. Fast food contains various oils and high fats that are not very healthy.

 

But have you ever considered, how these items are frozen like that? We all know, food items even if kept refrigerated, get spoiled in a few days. We’ve seen frozen food items being fresh and healthy for months. The answer is simple, the manufacturers use blast chillers and blast freezers to quickly freeze the food items and keep them fresh and healthy over a long period. In this article, we’re going to take a look at both of these machines, their working and advantages. Also, we’ll take a look at the blast chiller and blast freezer price. Let’s get started.

 

What is a Blast Chiller? 

A blast chiller is a refrigeration appliance commonly used in bakeries, restaurants, and commercial kitchens. These are usually used when the food material being refrigerated is to be used in a couple of days or within a week. Blast chillers cannot be used to freeze food materials that are supposed to last for months. These can operate at a specific temperature and the temperature can be adjusted with the help of easy to use controls. Blast chillers are commonly used to reduce the temperature of freshly cooked dishes and desserts to keep them fresh for a day or two. These can keep items like cakes, cookies, pastries, donuts, etc. fresh for 5 to 7 days.

 

What is a Blast Freezer? 

A blast freezer is a similar refrigeration appliance to a chiller but the two of them differ in their application and working efficiency. A freezer can produce much lower temperatures than blast chillers, due to this, they are commonly used by frozen food manufacturers. These are most commonly used to flash freeze items like fish, seafood, pasta, pizza, burgers, etc. The reason behind the differences in the applications is the difference in the working efficiency of the two appliances. A blast freezer is also known as a flash freezer or shock freezer due to its quick freezing capacity and also because it can produce much lower temperatures.

 

How Does a Blast Chiller and Freezer Work? 


The working of a blast chiller and blast freezer is not very different from each other and as a matter of fact, the parts used inside the appliances are the same but only differ in cooling capacity and working efficiency. The working method of both, the chiller and freezer is the same and is given below: 

  • First, the hot air present inside the blast chiller or freezer is taken in by the evaporator.
  • The evaporator passes the air over a coolant which absorbs the heat and reduces the temperature of the air.
  • The coolant absorbing the heat from the air starts boiling and then gets converted into the gaseous state.
  • The gaseous coolant gets transported to the compressor unit present inside the blast freezer. The compressor applies pressure which increases the overall pressure of the gaseous coolant.
  • The coolant is then transferred to the condenser unit inside the blast freezer.
  • The condenser unit reduces the temperature of the pressurised gaseous coolant and converts it into a liquid state with the help of air or water.
  • The liquefied coolant is then again sent to the evaporator unit and the process keeps on repeating, reducing the overall temperature inside the blast chiller.

 

What Temperature Range of Cold Air is in Blast Freezers?


Both the appliances have a major difference due to which the entire application of the machines changes. Whereas blast chillers are used to keep the food materials fresh for a short period, blast freezers can keep the food materials fresh for months. The difference between a chiller and a freezer is the temperature produced inside the appliances. A chiller can reduce and maintain the temperature of the contents kept inside from 70°C to 4°C in about 2 hours whereas a freezer can reduce the temperature of the air present inside the machine to -45°C in just 3-4 hours. This huge temperature gap makes the blast chiller ideal for bakeries and commercial kitchens whereas blast freezers are used to quickly freeze the food and keep it fresh for months.

 

How to Maintain the Temperature of Blast Chiller? 

A blast chiller is not a very complex appliance and is very easy to use. Most models of blast freezers and chillers are equipped with various advanced technologies such as control panels, inverted technologies, and more which make them even easier to operate. The main thing that you should consider is the parts present inside the appliance. Every blast chiller and freezer houses various components that need proper maintenance and repairs from time to time. If you do not take care of these parts then your appliance is not going to last longer. So if you want to maintain the temperature of your blast chiller, you should keep the parts of your chiller maintained.

 

Conclusion 

We have discussed almost everything you needed to know about blast chillers and blast freezers. From what they are to how they work and how to keep them working. We hope that you were able to understand everything and now have a complete understanding of both these appliances. There is no doubt that both the machines are exceptionally useful and besides their similarities, both work much differently and that’s the reason the price of the blast chiller is more than the blast freezer price. If you want to purchase any of the two machines, visit aajjo.com where you can find a large variety of chillers and freezers from top manufacturers and sellers in India at the most affordable prices.