Almond milk has become one of the most popular plant-based milk alternatives, loved for its light texture, nutty flavor, and dairy-free properties. Whether used in coffee, cereal, smoothies, or simply enjoyed on its own, almond milk is a staple in many homes. However, just like any other perishable item, almond milk can spoil. Even though it’s plant-based, it doesn’t last forever. Understanding how long almond milk lasts, how to store it properly, and how to tell if it’s gone bad can help you avoid unpleasant surprises and protect your health.
Understanding Almond Milk Shelf Life
Types of Almond Milk
There are two main types of almond milk available in stores, and they have different shelf lives:
- Shelf-stable almond milk: Packaged in aseptic cartons and stored at room temperature until opened.
- Refrigerated almond milk: Found in the refrigerated section and must be kept cold even before opening.
The shelf life of almond milk depends on which type you purchase and whether it’s been opened or not.
Expiration Dates
Both shelf-stable and refrigerated almond milk containers come with a best by or use by date. This date is a good guide for peak freshness, but almond milk can sometimes spoil before this date if not stored properly. Once opened, shelf-stable almond milk usually lasts 7 to 10 days in the fridge, while refrigerated versions also last around 7 to 10 days after opening.
Does Almond Milk Spoil?
Yes, It Can Go Bad
Despite being plant-based and often pasteurized, almond milk can spoil just like cow’s milk or other dairy alternatives. Exposure to air, heat, or bacteria can cause it to deteriorate over time. Spoiled almond milk not only tastes and smells unpleasant but can also cause digestive issues if consumed.
Why Almond Milk Spoils
Several factors contribute to almond milk going bad:
- Exposure to bacteria: Once opened, bacteria from the environment can enter the carton and multiply over time.
- Temperature changes: Leaving almond milk out of the fridge too long can promote bacterial growth and spoilage.
- Contaminated utensils: Using unclean spoons or pouring directly into unclean cups can introduce bacteria.
- Expired packaging: Drinking almond milk past its expiration or open date increases the risk of spoilage.
How to Tell If Almond Milk Has Gone Bad
Check the Smell
One of the most obvious signs of spoiled almond milk is a sour or rancid smell. Fresh almond milk usually smells slightly sweet and nutty. If it gives off a sour odor, it’s best to discard it immediately.
Look at the Texture
Almond milk should have a smooth, consistent texture. If you notice clumps, curdling, or separation that doesn’t mix after shaking, it’s likely spoiled. Some slight separation is normal in almond milk, especially if it’s free from stabilizers, but it should recombine when shaken.
Taste Test Carefully
If the milk smells fine and looks normal but you’re still unsure, take a small sip. Spoiled almond milk will have a sour or bitter taste that is noticeably different from the usual flavor. If it tastes off, spit it out and do not swallow.
Swollen or Damaged Packaging
If the container looks bloated or damaged, avoid drinking the milk. Swelling can be a sign of fermentation or bacterial activity inside the package, which indicates spoilage.
Proper Storage Tips
Before Opening
Shelf-stable almond milk should be stored in a cool, dark pantry away from heat and sunlight. Refrigerated almond milk should be kept in the fridge from the time of purchase. Always check the packaging to follow specific storage instructions.
After Opening
Once you open a carton of almond milk, it must be kept in the refrigerator, even if it’s the shelf-stable kind. Keep it sealed tightly and avoid leaving it out on the counter for extended periods. Store it in the main body of the fridge instead of the door to maintain a consistent temperature.
Freezing Almond Milk
While you can freeze almond milk to extend its shelf life, it may separate when thawed, affecting the texture. If you choose to freeze it, use it in smoothies or cooking rather than drinking it straight. Freeze in small portions and shake well after thawing.
Health Risks of Drinking Spoiled Almond Milk
Consuming spoiled almond milk can lead to foodborne illnesses. Symptoms may include nausea, vomiting, diarrhea, stomach cramps, and in more serious cases, fever or dehydration. These symptoms typically occur within hours of drinking the spoiled beverage.
If you experience any of these symptoms after consuming questionable almond milk, stay hydrated and monitor your condition. Seek medical advice if symptoms persist or worsen.
Does Homemade Almond Milk Spoil Faster?
Yes, homemade almond milk spoils faster than store-bought versions because it typically lacks preservatives and isn’t pasteurized. Even when stored in the refrigerator, homemade almond milk should be consumed within 3 to 5 days. Always use clean equipment, airtight containers, and fresh ingredients to extend its freshness as much as possible.
Frequently Asked Questions
Can you drink almond milk after the expiration date?
You can sometimes drink it a day or two past the printed date if it has been stored properly and shows no signs of spoilage. Always inspect the milk using your senses before consuming it.
What happens if almond milk is left out overnight?
If almond milk is left out at room temperature for more than two hours, it’s safer to throw it away. Harmful bacteria can grow rapidly in that time, especially in opened containers.
Is it okay to use spoiled almond milk in cooking?
No, cooking doesn’t make spoiled almond milk safe to consume. Even when heated, spoiled milk can still make you sick. Always use fresh ingredients for cooking and baking.
So, does almond milk spoil? Absolutely. Like any other food product, almond milk has a limited shelf life, whether it’s store-bought or homemade. Understanding how to store it correctly, recognize the signs of spoilage, and follow safety guidelines can help you enjoy almond milk without risk. Always trust your senses smell, sight, and taste before consuming, and when in doubt, throw it out. Staying informed is key to keeping your plant-based lifestyle both delicious and safe.