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In relation to freezing explain each of the following: Quick freezing ______________________________________________________________ Slow freezing ________________________________________________________________ - Leaving Cert Home Economics - Question 7 - 2013
Question 7
In relation to freezing explain each of the following: Quick freezing ______________________________________________________________ Slow freezing ________________... show full transcript
Worked Solution & Example Answer:In relation to freezing explain each of the following: Quick freezing ______________________________________________________________ Slow freezing ________________________________________________________________ - Leaving Cert Home Economics - Question 7 - 2013
Step 1
Quick freezing
Answer
Quick freezing involves rapidly reducing the temperature of food at very low temperatures, typically between -25°C to -40°C, in the fastest freezing section of a freezer. This process leads to the formation of small ice crystals within the food, which minimizes damage to the cell walls of the food items. Consequently, this method helps in retaining the nutritional value, texture, color, and flavor of the food more effectively when compared to slow freezing techniques.
Step 2
Slow freezing
Answer
Slow freezing occurs at temperatures ranging from 0°C to -24°C or higher. In this method, the formation of larger ice crystals takes place, which can damage the food cells. This damage results in a significant loss of texture, nutrients, color, and flavor when the food is thawed. Therefore, slow freezing is generally less desirable for preserving food quality compared to quick freezing.