Health

Dietitians say this nut is the best for your health — and you're probably storing them wrong

Food & Wine · May 06, 2026 09:15 · 3 min read

This trick has “helped keep food fresh longer than any other product we’ve used.”

In the past few months, I have added an important food to my diet: nuts. Whether by the handful, in my salads, or in Greek yogurt, I’m trying to eat them every day as they’re packed with nutrients like fiber, omega-3s, and protein. While many types of nuts offer health benefits, walnuts are particularly important for our diets. “Walnuts function as a ‘brain booster,’” and are the “best source of plant-based omega-3 fatty acids (alpha-linolenic acid) to reduce inflammation, lower cholesterol, and promote healthy skin,” Fiorella DiCarlo, RD, CDN, previously explained to Food & Wine. In fact, they are so nutritious that when we asked dieticians to rank nuts, they put walnuts at the top of the list. But, their benefits diminish over time — so what’s the best way to keep walnuts fresh?

I was told years ago to store nuts in the freezer to keep them at their best, so I was happy to see that, according to experts, I’ve been storing them correctly. Storing them in the freezer ensures that they do not go rancid or get moldy. Thousands of Amazon shoppers have discovered an ideal nut storage solution: the Stasher 28-Ounce Silicone Storage Bag. This bag offers many great features, including a way to eliminate plastic bag use, thereby reducing microplastics in the kitchen.

Stasher 28-Ounce Silicone Reusable Storage Bag

stasher silicone reusable storage bag — Credit: Amazon

~~$14~~ $13 at Amazon

It’s no secret that the Stasher’s silicone storage bags have long been our overall favorite reusable food storage bags. During testing, they “crushed” the competition, keeping food fresh for several days; even half of an avocado stayed good for three days! These bags are durable, heat-safe for up to 425°F, and dishwasher-safe, and our editors describe them as “almost indestructible.” So, when it comes to storing nuts like the all-important walnut, Stasher’s 28-ounce silicone reusable storage bag is an ideal solution.

This reusable storage bag features a pinch-to-lock seal, which proved ultra-strong, airtight, and leakproof in our tests. The 28-ounce bag measures 7.5 x 7.25 inches and is safe to use in the oven, microwave, refrigerator, and freezer. One reviewer reported they’ve used it “hundreds of times in the freezer, microwave, and oven, without any issues.” Another great feature is that the bag is stain- and odor-resistant. Plus, the brand covers these bags with a lifetime warranty — just don’t turn them inside out, as they can potentially rip.

This reusable storage bag has over 4,600 perfect ratings from shoppers who, like our editors, appreciate its durability, versatility, and high-level performance. One shopper was “completely shocked at how well” this bag works, finding the seal “tight” with “no leaks and no smells,” and they loved that no more plastic bags were needed in their kitchen. Another shopper uses this bag to store sandwiches, marinades, crackers, nuts, and many other items, while a third shopper says it’s “the best travel bag ever for veggies and nuts.” Several shoppers agree that they’re “perfect for the freezer.” This, of course, makes them ideal for storing walnuts to keep them around and fresher longer.

If you’re into eating healthier, grab some walnuts and snag the Stasher 28-Ounce silicone storage bag, and store nuts the right way. As one shopper stated, it’s “helped keep food fresh longer than any other product we’ve used.”