Many families habitually buy meat and fish in large quantities, then divide them into small portions and store them in the freezer for later use. This practice saves shopping time, ensures a consistent food supply, and reduces daily trips to the market. However, many people wonder if meat and fish kept frozen for an entire month remain safe to eat and if they lose their nutritional value. Some believe that food stored frozen for a long time loses its quality, while others think that simply putting it in the freezer allows for indefinite preservation.
Generally, meat and fish stored in the freezer for about one month can still be safe to consume if properly frozen and maintained at a stable temperature of about -18°C or lower. Freezing does not significantly diminish food's nutritional value because proteins, fats, and most minerals remain relatively stable under frozen conditions. Therefore, there is no basis to claim that meat and fish frozen for one month are inherently much less nutritious than fresh food stored and prepared correctly.
However, storage time can affect taste, texture, and flavor. As temperatures drop, water freezes, forming ice crystals inside and around cells, damaging tissue structure. When thawed, some water and cellular fluids leak out, reducing the meat or fish's juiciness and making it drier and less elastic. In general, any food, not just meat, kept in the refrigerator for too long will undergo changes in its components; even if it shows no signs of spoilage, it will not be as flavorful as when fresh.
Additionally, errors during thawing, preparation, and cooking can increase the risk of foodborne illness. Properly frozen meat can still become a source of pathogens if thawed incorrectly, left out at room temperature for too long, or subjected to cross-contamination during preparation.
To ensure food maintains good quality after one month, homemakers should pay attention from the moment they buy it: portion it into servings suitable for one meal. Seal it tightly, limiting air exposure by using freezer-safe bags or containers. Press out excess air from bags before sealing to reduce moisture loss and freezer burn. Do not keep meat and fish in the refrigerator for many days before moving them to the freezer, hoping to extend their initial freshness; instead, freeze them promptly while they are still fresh. If the freezer is often overloaded, opened frequently, or has unstable temperatures, food quality can be affected.
Associate Professor Dr. Nguyen Duy Thinh
Former official, Institute of Biotechnology and Food Technology, Hanoi University of Science and Technology
