You reach for the cashew milk to pour over your cereal and realize you can’t remember when you opened the carton. Does cashew milk go bad or expire? It does, and opening it shortens how long it lasts. Here is what brand FAQs, extension guides, USDA and FDA say about cashew milk shelf life, spoilage, freezing, homemade batches and recalls.
Does cashew milk go bad or expire?
The Short Answer: Yes. Cashew milk goes bad, and opening it shortens how long it lasts. Opened cashew milk is generally recommended for about 5 to 10 days in the refrigerator, depending on the brand. Silk and Elmhurst say 7 to 10 days, Virginia Tech’s non-dairy milk row says 7 to 10 days, and Forager Project says 5 to 7 days. Unopened shelf-stable cartons can sit in the pantry until the printed date. Refrigerate every carton after opening, and discard milk left out more than 2 hours or showing mold or other signs of spoilage. We don’t suggest tasting cashew milk to test it.
For a complete pantry and fridge reference, see our Food Storage Guide. For related questions, see whether milk, almond milk, oat milk, soy milk, coconut milk, coffee creamer and cashews need special storage, and our guide to non-dairy milks.
Cashew Milk: At a Glance
Unopened refrigerated carton
Use by the date on the carton. Virginia Tech says to keep refrigerated foods below 40°F
Unopened shelf-stable carton
Pantry until the date on the package. Silk says shelf-stable products don’t need refrigeration until opened
Opened, either type
7 to 10 days (Silk Cashewmilk, Elmhurst, Virginia Tech’s non-dairy row). Forager Project says 5 to 7 days
Homemade
Clemson Extension’s article says to use it within 5 to 7 days from an airtight container in the fridge
Left out
Discard after more than 2 hours (1 hour above 90°F), per Virginia Tech’s general rule for refrigerated foods
Freezer
Silk, Elmhurst and Forager Project don’t recommend it
Recalled carton
Throw it out or return it, as the recall notice says
“Best by” date
A quality date, not a safety date, per USDA
Key Takeaways
Brand recommendations for opened cashew milk range from 5 to 10 days. They are recommended storage windows, not a universal safety limit.
Silk’s Cashewmilk FAQ says the product stays fresh 7 to 10 days after opening and must be refrigerated. Forager Project says 5 to 7 days for its products.
Virginia Tech’s non-dairy milk row lists 7 to 10 days opened. It names almond, coconut, rice and soy, so applying it to cashew milk is our own reading.
Shelf-stable cartons are made for room-temperature storage until opened. Refrigerate every carton after opening.
Refrigerate opened cartons promptly. Virginia Tech says to discard refrigerated foods that may have been at room temperature more than 2 hours. That rule is not specific to cashew milk.
Silk, Elmhurst and Forager Project don’t recommend freezing, mainly because of texture changes. Silk says freezing doesn’t affect safety.
Clemson Extension’s ho
