Refrigerator - Modern Design Features Flashcards
List the different modern design features.
4
Zoned refrigeration
Automatic defrost
Humidity-controlled drawers
Ice/Water dispensers
Write a note on zoned refrigeration.
3
Not all foods benefit from being kept at the same temperature
Some refrigerators come with a multi-temperature drawer which can be set to different temperatures e.g. -18 degrees Celsius to 25 degrees Celsius, depending on the foods being stored
Food stored at the correct temperature last longer and is less likely to spoil
Write a note on automatic defrost.
4
This setting regularly defrosts a refrigerator or freezer, removing built-up ice
It is controlled by a timer
It works by heating the evaporator with an integrated heating element for a short period of time, which melts any ice
Any resulting water drains through a duct at the back of the unit
What is the purpose of defrosting a freezer?
It removes any built up ice
What controls the automatic defrost in a fridge?
It is controlled by a timer
How does automatic defrost work?
2
It works by heating the evaporator with an integrated heating element for a short period of time, which melts any ice
Any resulting water drains through a duct at the back of the unit
What happens to any water which results from defrosting?
It is drained through a duct in the back of the unit
Write a note on humidity-controlled drawers.
4
A low humidity setting is used to prevent the rotting of fruit and vegetables that naturally release ethylene gas e.g. apples or celery
The low humidity setting creates an opening in the drawer that allows the ethylene gas to escape
A high humidity setting is used for fruit and vegetables prone to wilting or moisture loss, e.g. strawberries or spinach
The high humidity setting keeps the drawer sealed, retaining moisture and keeping fruit and vegetables crisper and fresher for longer
For what two reasons are humidity controlled drawers used?
To prevent the rotting of fruit and vegetables that naturally release ethylene gas e.g. apples or celery
To prevent the wilting or moisture loss of some fruits and vegetables
How does the humidity controlled drawers prevent the rotting of fruit and vegetables that naturally release ethylene gas?
The low humidity setting creates an opening in the drawer that allows the ethylene gas to escape
How does the humidity controlled drawers prevent the wilting or moisture loss of some fruit and vegetables?
A high humidity setting keeps the drawer sealed retaining moisture and keeping fruit and vegetables crisper and fresher for longer
Give some examples of fruits and vegetables that naturally release ethylene gas.
Apples or celery
Give some examples of fruit and vegetables that are prone to wilting and moisture loss.
Strawberries or spinach
What is naturally released from apples or celery?
Ethylene gas
Write a note on Ice/Water dispensers
3
Water is plumbed from the mains water supply, filtered and kept chilled
Some water is taken to form ice cubes or crushed ice
It is operated by a push lever dispenser on the front of the refrigerator
