Yes, almond milk can go bad, but how quickly depends on whether it's been opened or not. Unopened almond milk, especially shelf-stable varieties, can last for several months, while opened almond milk should be consumed within 10 to 14 days.
- Unopened almond milk: It's generally safe to consume for five to seven days past the sell-by date.
- Opened almond milk: After opening, it's best to consume it within 10 to 14 days.
The main culprit for almond milk going bad is the introduction of bacteria, which can occur once the container is opened. Other factors include oxidation, yeast, and mold.
Here are some tips to help your almond milk last longer:
- Store it in the refrigerator: After opening, always store almond milk in the refrigerator at 40 degrees Fahrenheit or below.
- Check the smell and appearance: If it has a sour smell or unusual appearance, it's best to discard it.
- Don't freeze it: While freezing almond milk is possible, it can change the texture and taste.