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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 occurs at temperatures between −25°C to −40°C in the freezer. In this process, food is frozen rapidly, leading to the formation of small ice crystals within the food. These smaller ice crystals cause less damage to the cell walls, which helps in preserving the food's nutritional value, texture, color, and flavor. As a result, the integrity of the food is maintained better than in slower freezing processes.
Step 2
Slow freezing
Answer
Slow freezing typically occurs at temperature ranges of 0°C to −24°C or above. During this slower freezing process, larger ice crystals form, which can damage the food's cell structure. This damage can cause a significant loss of texture, nutrients, color, and overall flavor when the food is thawed. Therefore, slow freezing can lead to a decline in quality compared to quick freezing.