Do Frozen Foods Need Preservatives?

Frozen products do not require any added preservatives, as microorganisms do not grow when the food temperature is below -9.5°C (15°F), which alone is sufficient to prevent food spoilage. Long-term preservation of food may require storing food at lower temperatures. Carboxymethyl cellulose (CMC) is an odorless and tasteless stabilizer commonly added to frozen foods as it does not affect the quality of the product.