The shelf life of soy milk can vary depending on factors like the brand, packaging, and preservatives used, but generally, an unopened container of soy milk can last for about 7 to 10 days in the refrigerator. Always check the expiration date on the packaging for the specific guidance.
Once you open the container, the shelf life will decrease significantly. After opening, soy milk typically remains safe to consume for around 5 to 7 days when kept in the refrigerator. Again, make sure to follow any storage instructions provided by the manufacturer to ensure the best quality and safety.
If you notice any changes in smell, taste, or texture, or if there are visible signs of spoilage (such as curdling, mold, or off colors), it's best to discard the soy milk, even if it's within the recommended shelf life period. Trust your senses when determining whether the product is still good to use.