What causes freezer burn?

[staci]

My old freezer never did this, my new one has everything coated in ice pretty quickly. What causes this? Is it set to high? To low? Is something WRONG with it?

 

[Southern4sure]

Moisture loss or ice crystals evaporating from the surface area of a product produce freezer burn. Freezer burn appears as a fuzzy, grayish-white spot on the food surface. Freezer burn is not harmful but it causes off-flavors and dries out and toughens food. It can be prevented by wrapping food in moisture-vapor-proof material and storing it for the recommended length of time.

I stayed in a Holiday Inn last night......

PS: Air inside a freezer bag also contributes to freezer burn.

 

[mudnuri]

I thought Freezer Burn was caused by stuff being frozen in bags with air?

Dunno really...LOL

Brandy