What happens if you don t refrigerate almond milk after opening?


Almond milk has become a popular plant-based milk alternative for many people. It is made from ground almonds and water, sometimes with added vitamins, minerals and flavorings. After opening a carton or bottle of almond milk, many people are unsure if it needs to be refrigerated or how long it can stay unrefrigerated before going bad. This article will examine what happens if you don’t refrigerate almond milk after opening and provide guidance on proper storage and shelf life.

Does Almond Milk Need to Be Refrigerated After Opening?

Most almond milk brands recommend refrigerating after opening, even if it is shelf-stable. This is because the refrigeration helps slow the growth of bacteria and extend the shelf life after exposure to air. However, refrigeration is not absolutely necessary if you plan to consume the milk within a week and the container remains properly sealed.

Type of Almond Milk Refrigeration Needed After Opening?
Shelf-stable or aseptic packaged almond milk Refrigeration recommended but not required if consuming within 5-7 days
Refrigerated almond milk Yes, refrigerate after opening

Signs Almond Milk Has Gone Bad

If you choose not to refrigerate opened almond milk, be on the lookout for the following signs that it has spoiled and should be discarded:

  • Sour smell
  • Thick texture or clumping
  • Mold visible on surface
  • Expired use-by/best-by date
  • Changes in color or consistency

Almond milk should be white and have a smooth, creamy consistency when fresh. Separation of the solids and liquids is normal, but the milk should mix back uniformly with gentle shaking.

How Long Does Almond Milk Last Unrefrigerated?

The shelf life of opened almond milk without refrigeration depends on several factors:

  • Type of almond milk – Shelf-stable varieties last longer than refrigerated.
  • Ingredients – Milk with preservatives and stabilizers will last longer.
  • Packaging – Tightly sealed containers help prevent spoilage.
  • Storage conditions – Cool, dark environments prolong shelf life.
  • Time since opening – The more time open, the higher risk of spoilage.

Under optimal conditions, opened shelf-stable almond milk may last 5-7 days unrefrigerated. However, for best quality and food safety, it should be used within 3-5 days. Refrigerated almond milk should be consumed within 2 days.

Type of Opened Almond Milk Unrefrigerated Shelf Life
Shelf-stable 5-7 days
Refrigerated 2 days

Tips to Maximize Opened Shelf Life

To get the most shelf life out of opened almond milk without refrigeration, follow these tips:

  • Transfer to an airtight container to minimize air exposure.
  • Use clean utensils to remove milk to avoid introducing bacteria.
  • Keep containers away from direct sunlight and other heat sources.
  • Store unrefrigerated milk in the pantry or other cool, dark place.
  • Keep track of date opened and use-by/best-by date.
  • Consume within 3-5 days and discard if any signs of spoilage.

Proper pouring and storage habits prevent contamination and degradation, optimizing the shelf life. But refrigeration is still the best way to maximize freshness long-term after opening.

Can Spoiled Almond Milk Make You Sick?

Yes, consuming spoiled almond milk comes with some health risks you should take seriously:

  • Food poisoning – Bacteria like Staphylococcus aureus can cause nausea, vomiting, and diarrhea.
  • Toxicity – Mold growth may produce mycotoxins that can cause long-term liver or kidney damage.
  • Infection – Risks are higher for people with weakened immune systems, who may get severe infection from bacteria or mold.

Although almond milk has lower risk than dairy milk, improper storage still allows pathogenic microbes to multiply to dangerous levels. If you suspect your almond milk is spoiled, err on the side of caution and discard it. The symptoms of foodborne illness are not worth the risk.

Should I Finish Almond Milk Within 7-10 Days After Opening?

The majority of almond milk brands recommend using opened milk within 7-10 days for safety and quality. This applies to both shelf-stable and refrigerated varieties. Let’s examine why:

  • Bacteria levels remain low within 7-10 days if properly stored.
  • Most almond milks stay fresh tasting within a 7-10 day window when refrigerated.
  • The vitamins and antioxidants degrade significantly after 10 days open.
  • Refrigerated almond milk separators and gets a chalky texture after 7-10 days.
  • Non-refrigerated milk exceeds safe room temperature storage times after 7 days.

While almond milk may last 2-3 weeks from the use-by date unopened, consuming within 7-10 days opened ensures safety, nutrition, and optimal quality. Only exception is shelf-stable milk if continually unrefrigerated and no signs of spoilage.

Does Spoiled Almond Milk Smell?

Yes, spoiled almond milk gives off distinct sour, bitter, or unpleasant odors. Give your almond milk a quick sniff test before drinking or pouring on cereal. Here’s what to watch out for:

  • Sour – Spoiled milk has an acidic, fermented smell from lactic acid bacteria.
  • Rancid – Oxidation causes unpleasant “cardboard” or “paint” smells.
  • Moldy – Musty odor indicates possible mold contamination.
  • Yeasty – A yeast overgrowth creates a beer-like alcoholic aroma.

Healthy almond milk smells sweet and nutty. Foul odors like sourness, staleness, or anything “off” means it’s unfortunately time to say goodbye and get a fresh carton or bottle. Don’t take chances on drinking bad milk!


Almond milk generally needs refrigeration after opening to maximize shelf life and safety. But unrefrigerated, shelf-stable varieties can safely last 3-7 days with proper storage. Keep an eye out for spoilage signs like smell, texture, and expiration dates. Consuming spoiled milk poses health risks, so err on the side of caution if you see or smell anything “off.” For best quality and safety, use refrigerated almond milk within 7-10 days and discard when it goes bad. Following these guidelines helps you avoid pouring sour milk on your cereal or getting sick from contamination.

Similar Posts

Leave a Reply

Your email address will not be published. Required fields are marked *