A blast freezer (also known as shock freezer or flash freezer) is a special type of freezer storage which very rapidly freezes the food stuff or fresh produce at extremely low temperatures. This is air blast freezing.
What does blast freezing do?
Blast freezing is the process of pushing cold air at high velocity across a food product in order to freeze the product as quickly as possible. … The primary goal in blast freezing is fast freeze times.
What is the temp range in air blast method of freezing?
What is blast freezing? The Blast Freeze process requires that food be reduced from a temperature of +70ºC to –18ºC in no more than 240 minutes.
Is a blast chiller colder than a freezer?
The temperature range of a blast freezer varies depending on the manufacturer, but one thing is a fact; it is much colder than your average domestic freezer. At CRS, our range of blast freezers and chillers are designed with temperature ranges of -40°C to +10°C.
How fast does a blast freezer freeze?
Blast Freezers reach these temperatures almost instantly, allowing the products that are inside to freeze within 30 to 90 minutes, compared to shock freezers that usually take 90 to 120 minutes, the main difference is the speed at which it can completely freeze a product.
How much does a blast freezer cost?
The Freddy blast chiller retails for $2,900, and you can head to Irinox to shop and learn more about how it works.
Do blast chillers freeze food?
Blast freezers quickly freeze food stored inside thanks to the blowers inside that pass the chilled air over the surface of the food. … This means that the cold air that is pumped inside has to cool not only the food but the stagnant air.
Do you salt fish before freezing?
Before freezing, fish can be pretreated to improve the quality of the stored fish. … Lean fish may be dipped for 20 seconds in a brine of ¼ cup salt to 1 quart of cold water to firm the fish and to decrease drip loss from thawing.
How do you calculate blast freezer capacity?
The result is total compressor capacity 58.2 kW x 2 compressor or 116.4 kW, while the calculation load according to condition of end of room ABF is equal to 37.81 kW x 2 room or equal to 75.62 kW , 40.78 kW difference, or enough to make one more ABF room with the same design and capacity.
How do I choose a blast freezer?
- Check List for Selecting a Blast Chiller/Freezer. You will need to consider: …
- Food Production Process. Go to the beginning of the process a. …
- Blast Chilling/Freezing Requirements. Calculate chilling/freezing capacity. …
- Production and Chilling/Freezing Timescales. Consideration needs to be given to: a. …
- Position.
How cold are blast chillers?
Blast chillers drop food temperatures from 160 degrees F to 35 degrees F in 4 hours or quicker with some models. Blast chillers bring food temperatures down using a combination of cold and moving air across the product, which expedites the process.
How cold is a flash freezer?
In physics and chemistry, flash freezing is the process whereby objects are frozen in just a few hours by subjecting them to cryogenic temperatures, or through direct contact with liquid nitrogen at −196 °C (−320.8 °F). It is commonly used in the food industry.
Can you store food in a blast chiller?
Blast freezers are most commonly used in hotels, big restaurants, fast-food restaurants, canteens, resorts and in catering. They are designed to freeze food and beverages (up to -18 C) allowing you to store processed meat for up to two months and salads and desserts for up to 1 year.
What can you do with a blast chiller?
With a Blast Chiller, it’s possible to lower the temperature of foods you have just cooked. You can reduce the temperature of cooked food from +70 °C to +5 °C or below within 90 minutes. Rendering your food safe for storage and later consumption. All Businesses serving food.
Can you buy a flash freezer?
The Exclusive Flash Freeze Blast Freezer/Blast Chiller Line is capable of addressing all your freezing needs. From freezing fish and meats, to pastries and bread and even chocolate, we have a unit for your individual unique needs.
How long does it take to blast freeze ice cream?
Unlike the macro crystals that are formed on slow freezing, the micro crystals do not damage the structure of the product on defrosting so it keeps its original consistency without the loss of any liquid from the structure. Blast freezers can harden off the outside of the ice cream in around 25 minutes.
Can I flash freeze at home?
To flash freeze at home means to freeze small items individually and bag them quickly once they’re individually frozen. This is an excellent way to treat blueberries: Simply clean them, then lay them on a cookie sheet and place them in the freezer. Once they’re frozen, bag them in a freezer bag.
What is the temperature of a blast freezer?
The temperature of a blast freezer can vary from -10 Degrees Celsius (14 Degrees Fahrenheit) to -120 Degrees Celsius (-184 Degrees Fahrenheit) . The effective freezing temperature of various blast freezers vary depending upon a variety of factors.
What is the difference between flash freezing and freezing?
So what is flash-freezing? Flash freezing is the process of freezing an item quickly at an extremely low temperature with cold, circulating air. … In contrast, when you flash freeze meats, they are frozen so quickly that the ice crystals don’t form between the fibers of your meats.
What is the best alternative to a blast chiller?
What is the best alternative to safely cooling foods without a…
- Ice-water bath and frequently stirring the food.
- Ice paddles (plastic container filled with water and frozen) used to stir food in an ice-water bath.
- Adding ice as an ingredient (if water is an ingredient).
- Blast or tumble chiller.
Can you blast freeze ice cream?
Blast freezing your freshly made gelato quickly ‘locks’ everything together and prevents large ice crystals forming in the product, keeping the quality as good as it was when it came out of the batch freezer.