It's best to avoid drinking milk past its "use-by" date. While some sources suggest milk might be safe for a few days after, relying on the date ensures quality and safety.
Understanding "Use-By" Dates
The "use-by" date is a crucial indicator of milk quality and safety. It's the date until which the product maintains its best quality and taste, and is determined by the manufacturer. After this date, the milk may start to spoil, potentially leading to unpleasant taste and increased risk of bacterial growth. Several sources emphasize that this date is not just a suggestion but rather a safety guideline. (Source 1, Source 4, Source 10)
Factors Affecting Milk Shelf Life
Several factors affect how long milk remains safe after the "use-by" date:
- Storage temperature: Consistent refrigeration at or below 40°F (4°C) is crucial. Warmer temperatures accelerate spoilage.
- Milk type: Different types of milk (e.g., whole milk, skim milk, ultra-high temperature (UHT) milk) may have varying shelf lives.
- Packaging: The type of packaging can influence milk's freshness and susceptibility to contamination.
Assessing Milk Freshness
Even if a few days past the "use-by" date, you can perform checks:
- Smell: A sour or unpleasant odor indicates spoilage.
- Taste: A sour or off taste is another clear sign of spoilage.
- Appearance: Look for curdling or unusual changes in texture or color.
If any of these signs are present, discard the milk. (Source 2, Source 4)
Conclusion
While some individuals might consume milk a day or two beyond its "use-by" date without immediate adverse effects, sticking to the recommended date minimizes risks associated with spoiled milk. The "use-by" date signifies the manufacturer's guarantee of quality and safety. (Source 1, Source 10)
