Shelled almonds can last six months outdoors, sixteen months in the refrigerator and twenty months in the freezer. Almonds can stay fresh longer if kept in the refrigerator or freezer. At room temperature, shelled almonds can last much longer than shelled ones. You can store them safely for up to two years.
Without the shell, they will last only a few months at room temperature. In the freezer, they last indefinitely, while in the fridge they will be fresh and safe to eat for up to two years. Shelled almonds come with an expiration date. When not open, they can stay in the pantry for 4 months.
If you open them, you should refrigerate them so that they last approximately 8 months. If you want them to last even longer, freeze them and that will take 10 months. They are widely cultivated in North Africa. A variety of almonds are available on the market.
The shelf life of almonds varies from type to type. Once again, rancidity will most likely occur, and you'll only find out about it after digging one of those almonds. So if you've ever stored almonds in warm temperatures for a couple of months and they've gone stale, consider taking them to a colder place, such as the fridge. The University of California says they can be stored for about a year, while the Almond Board of California reports that it is approaching two years.
When it comes to places, the refrigerator and freezer automatically keep almonds out of sunlight. For snack almonds, which are typically toasted almonds with seasoning, you should follow the storage instructions on the label. In summer it's a little warmer, but the almonds stay there for a few years without any problem, as long as they are in dry, drafty, cool and shady places. Army Natick researchers demonstrated that various forms of almonds (raw, roasted, blanched, sliced) can have a shelf life of three years when packaged in optimal packages (vacuum tri-laminated aluminum bags).
According to the California Almond Board, the shelf life of almonds depends on how they are produced, processed and packaged. You can also use a fruit carton or plastic box, but make sure it has some ventilation, as shelled almonds should be kept in a dark, drafty environment, away from heat and moisture. To tell the truth, it's hard to say precisely how long almonds last, since the recommendations are a bit extended. Almonds that are stored for a long time can go rancid, so once you open a package of almonds, don't forget to put them in an airtight container.
When making this nut milk, remember that homemade almond milk only lasts a couple of days, so don't cross the line. In fact, most people who hate almonds probably spoiled them for the first time and maybe ate them. Or maybe there's a bag of “expired almonds” in the back of a closet, but you're sure they're still OK. As with raw almonds, if the package can't be reclosed, transfer the nuts to something that is after opening it.
A long-term storage study published in the Journal of Food Science evaluated the shelf life quality of raw almond kernels, blanched kernels, and sliced blanched kernels stored for at least 18 months under controlled (including abusive) environmental conditions.