Frozen food preservation time is based on the food to decide, chicken, duck, cattle, sheep, pork freezing time should not exceed 6 months at the longest, bacon slices, cured meat should not be more than 3 months, ham and bacon pieces should not be more than 4 months.

Fish, fat fish and fish should not be frozen for more than 4 months, white fish should not be frozen for more than 8 months, and shellfish should not be frozen for more than 3 months. Vegetables that have been blanched in boiling water can be frozen and stored for 10 to 12 months, while those that haven't been blanched can only be stored for 3 to 4 months, and tomatoes can be frozen for up to 8 months.

Don't leave frozen foods in the freezer for too long. For food that has been left in the freezer for a long time, the temperature is usually below -18°C. At this temperature, bacteria are generally inhibited or killed, so food stored in this way has a better preservation effect.