What is Freezer Burn?

The video explains freezer burn, a process where ice in frozen food sublimates, causing dryness. It contrasts freezer burn with hoar frost, which forms from water vapor in the air. The effects of freezer burn include dry, frosty food that remains safe to eat. Tips to prevent freezer burn include keeping the freezer cold and using airtight bags. Sublimation also occurs in nature, forming frost flowers on sea ice.

What is the primary cause of freezer burn in frozen foods?

• Condensation of vapor

• Sublimation of ice

• Melting of ice

• Evaporation of water

Why does freezer burn affect vegetables and meat more than flour and nuts?

• They are stored for longer periods

• They are exposed to more air

• They contain more water

• They are stored at higher temperatures

How can you prevent freezer burn from occurring?

• By storing food at room temperature

• By storing food in paper bags

• By keeping the freezer door open

• By sealing food in plastic bags without air pockets

What happens to ice cubes in a freezer over time due to sublimation?

• They shrink

• They melt

• They expand

• They change color

What natural phenomenon is an example of sublimation?

• Dew on grass

• Frost flowers on sea ice

• Rain formation

• Snow melting