Blast Freezing and Food Hygiene

When it comes to food hygiene - blast freezing is hugely important!

One of the major problems with placing food into cold storage is the formation of ice crystals as it freezes. As everyone knows, most foodstuffs contain liquids within them, most usually water, and when this water freezes it forms ice crystals. How large these ice crystals are depends entirely on how long it took for the food to freeze. Generally, the longer it takes the larger the ice crystals. Large ice crystals, in turn, result in damage to the foodstuff as the water expands and disrupts cells. This is why food that has been improperly stored in refrigerated containers tends to be soggy and soft.

What are blast freezers?

Cold blast freezers, sometimes also called shock freezers, are an attempt to remedy that situation by ensuring that food is frozen at higher temperatures with a lot less time, which results in far smaller ice crystals. Because of this, damage to the food is kept to a minimum and its overall quality is preserved. Cold blast freezers are extremely popular amongst commercial food industries for exactly that reason, furthering the storage time of produce to degrees conventional freezers are incapable of achieving.

Another major advantage of cold blast freezers is their capacity to prevent bacterial growth in food. If handled properly and placed immediately into cold storage, the risk of contamination is tremendously reduced and can do wonders for health and hygiene standards in your business. Many commercial food outlets have at least one cold blast freezer for exactly this reason.

Most cold storage manufacturers, such as CRS Cold Storage, are capable of providing cold blast refrigerator containers and solutions.

Functions of blast freezers

mobile freezerThe ways in which a cold blast freezer can function are pretty varied, although many operate with blowers that force chilled air over the food to rapidly cool it down, which gives rise to its name. The freezer can usually handle foodstuffs of varying temperature, however be warned -- too high a volume of hot food can cause the internal air temperature of the refrigerated container to rise. Certain models can also come with moveable trays and separate compartments for freezing.

Due to the amount of energy that cold blast freezers use up, they are most often used commercially or within industry. It is possible to acquire a cold blast freezer for more personal uses if so desired, for example by hunters who wish to preserve freshly caught game. There are many types of commercial freezers available, some portable to move from site to site, others are permanent stuctures.

For more information about mobile freezers or blast freezers, visit CRS - specialist cold storage providers in Ireland and the UK.

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