To keep your salt and vinegar almonds fresh and crunchy, store them in an airtight container at room temperature. A well-sealed container will help prevent moisture from making the almonds soggy and will maintain their crispiness. For optimal freshness, you can also store them in a cool, dry place away from direct sunlight. If you want to extend their shelf life, consider keeping them in the refrigerator, where they can stay fresh for several weeks. Just make sure to let them come to room temperature before enjoying, as cold almonds might lose some of their crunch.