Freezing food causes the cell walls of fruits and vegetables to expand and rupture. This causes the texture to become softer than when it was unfrozen. You are actually freezing the water contained in the plant cells. Textural changes are less noticeable in high starch vegetables (peas, corn, lima beans) and cooked food products.
The quality of food is affected by temperature. For best nutritive value, color, flavor and texture retention, keep freezer temperature at 0°F or lower. Food stored for 1 year at 0°F or lower is better than food stored for 5 months at 5° F or 2 months at 10° F.
Place a freezer appliance thermometer in the warmest place (near top or door). Read freezer temperature after it has been in place for 24 hours. Adjust freezer temperature if above 0°F.