In recent years, plant-based milk alternatives have surged in popularity. Among the many options, cashew milk has emerged as a creamy, nutty, and versatile choice that’s not only delicious but also packed with nutritional benefits.
While it might not contain dairy like cow milk, cashew milk can still go bad! So, proper storage is crucial to maintaining its flavor, texture, and overall quality.
In this article, we will explore the best practices for storing cashew milk, how to know when it’s gone bad, and more!

What is the best way to store cashew milk?
Cashew milk, like other non-dairy milk alternatives, should be stored in a cool, dark place, away from direct sunlight and heat sources. A pantry or cupboard is usually a good spot.
Some brands may recommend refrigerating unopened cashew milk for extended freshness. If the packaging suggests refrigeration, be sure to do so!
After opening a carton or container of cashew milk, it should be promptly refrigerated. Store it in the coldest part of your fridge, usually near the back. The ideal temperature for storage is around 32-39°F (0-4°C).
Cashew milk, similar to almond or oat milk, can separate over time. Before using it, give the container a good shake to ensure the liquid is well-mixed.
If you’re using store-bought cashew milk, pay attention to the use-by or best-by date on the packaging. Consume it before or shortly after this date for the best quality.
Does cashew milk need to be refrigerated?
This depends on the type of cashew milk you have: shelf-stable or refrigerated.
Shelf-stable cashew milk is typically found in aseptic cartons or boxes on your grocery store shelves. The magic behind its shelf-stable nature lies in the UHT (Ultra High Temperature) pasteurization process, which involves heating the milk to a high temperature to kill bacteria and enzymes. The result? A sealed carton of cashew milk that can stay unrefrigerated until opened. It’s perfect for pantry storage, making it a convenient choice for those who like to stock up.
Now, if you’ve made your own cashew milk or purchased the refrigerated kind, you’ll need to keep it chilled. Homemade cashew milk, in particular, lacks the UHT pasteurization process, making it more susceptible to spoilage at room temperature. So, always keep it snug in the refrigerator to maintain its freshness.
Can you freeze cashew milk?
Yes! If you have a surplus of cashew milk that you can’t consume within a reasonable time, you can freeze it.
Pour it into an airtight container, leaving some room at the top for expansion, as liquids tend to expand when frozen. Label the container with the date and store it in the freezer.
Alternatively, you can pour the milk into an ice cube tray, freeze, and then put the cashew milk ice cubes into a freezer zip lock bag. This speeds up the thawing process a bit.
When you’re ready to use your frozen cashew milk, thaw it the container in the refrigerator, give it a good shake, and it’s good to go!
Avoid rapid temperature changes and thawing in warm conditions to maintain the quality of the cashew milk. And remember not to freeze cashew milk in its original carton, as it might burst due to expansion.
How long does cashew milk last?
The shelf life of cashew milk depends on several factors, including whether it’s homemade or store-bought, the packaging, and how well you store it.
Store-bought versions may have a longer shelf life depending on preservatives and packaging.
Unopened shelf-stable cashew milk can last up to a year when stored in a cool, dry place.
If you have opened a container of cashew milk and it has been stored in the refrigerator, it typically lasts for about 7 to 10 days, although this can also vary depending on the brand and any specific instructions on the packaging.
Homemade cashew milk is freshest within the first 3 to 4 days of making it. After that, its quality can start to decline. So, if you’re a fan of DIY cashew milk, make it in smaller batches to ensure you always have a fresh supply.
How to spot spoiled cashew milk
Fortunately, it’s not difficult to tell if your cashew milk has gone bad. Firstly, check the smell: if the milk has an off-putting sour or rancid odor, it’s likely gone bad.
Next, examine its appearance. Spoiled cashew milk may have separated, curdled, or developed a chunky texture. Additionally, inspect the color – any significant discoloration, such as a yellow or brownish tint, can be a sign of spoilage.
Lastly, taste a small amount if you’re still unsure; spoiled cashew milk will typically have a sour or unpleasant flavor.
To avoid consuming spoiled cashew milk, always store it properly in the refrigerator, consume it within its recommended shelf life, and check for any noticeable changes before use.
FAQs
Yes, it’s best to refrigerate cashew milk after opening to maintain its freshness and prevent spoilage. Always check the manufacturer’s instructions for specific storage recommendations.
To preserve cashew milk, store it in an airtight container in the refrigerator for up to 7-10 days. Shake well before use, and avoid leaving it at room temperature for extended periods to prevent spoilage. For longer-term storage, consider freezing it in ice cube trays and transferring the cubes to a sealed freezer bag for use in smoothies or recipes.
Once opened, cashew milk should be consumed within 7-10 days. Always check the expiration date on store-bought cartons for specific guidelines.
Yes, you can freeze cashew milk! Just ensure it’s in an airtight container and consume it within 3-6 months for the best quality.
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