Editor's note: This article has been reviewed and updated for accuracy in 2026. If you’ve ever watched your weed turn from bright green to dull brown, you’re losing its potent effects. Your hard earned and responsibly spent money is literally deteriorating before your eyes. It's the oxygen and light exposure, you already know. Well, if you are a fresh flower connoisseur and ruining good bud bothers you, then you may be ready to take the next step and upgrade to a stash jar, but where to begin? We reviewed the best smell proof containers for stashing your weed so you can find the perfect fit for your lifestyle. But before we jump into our favorite brands and styles, let's cover the basics, like what the purpose of a stash jar is, the dangers of not using one or using a low quality jar, and what to look for when doing some comparison shopping of your own! [wptb id=4030] What IS a Stash Jar? Simply put, a stash jar is where you keep your bud. It can be anything from a recycled glass jar to a luxurious wood container. The options are endless, and you can pick one that best fits your personality and habits. An excellent stash jar covers the basics of keeping your weed dry, locking in its scent, and protecting it from light to extend its freshness as long as possible. Stash jars can preserve your weed for up to two years. <!-- wp:paragr