At Evergreen, we’ve spent years asking ourselves this very question: what is your stash jar missing? Like so many other cannabis enthusiasts, we struggled with the same frustrations you probably have: buds drying out too quickly, losing their flavor, or even worse, getting moldy when using questionable DIY solutions.
Our mission has always been simple: keep cannabis fresh and potent in a way that’s also environmentally sustainable. Through trial, error, and innovation, we developed a storage system that addresses the three areas where most stash jars fall short: materials, UV protection, and humidity control.
Glass vs. Other Materials: Why Glass Wins Every Time
If you’ve been storing cannabis for a while, you’ve probably tried it all: plastic bags, metal tins, maybe even wooden boxes. On the surface, these might seem fine, but over time you realize they all have major flaws.
Plastic bags, for example, are cheap and convenient, but they do little to actually protect your flower. They’re not airtight, so aromas escape, terpenes degrade, and your stash loses its potency faster than you’d like. Plus, plastic can generate static that pulls trichomes away from your buds, reducing overall quality.
Metal tins are another common option. They’re durable, sure, but they can impart a metallic taste or smell that changes the natural flavor profile of your cannabis. Worse yet, they don’t provide the right seal for long-term storage, leaving your flower exposed to air and humidity fluctuations.
Wood boxes are beautiful, but they absorb oils and aromas, which can impact the flavor of your cannabis. And like metal tins, they don’t lock in freshness the way you need for long-term storage.
That’s why glass has always been the gold standard. It’s non-porous, so it won’t absorb or alter the taste or smell of your stash. Glass is also airtight when paired with the right sealing lid, which helps preserve potency and aroma. Most cannabis enthusiasts agree: if you care about quality, glass is where you start.
UV Protection: Solving Glass’s Biggest Weakness
While glass is superior to plastic, metal, and wood, it comes with a glaring weakness: exposure to light, particularly UV rays. Light is one of the fastest ways to degrade cannabinoids and terpenes, stripping away both potency and flavor. Even if your glass jar is airtight, if it’s clear or lightly tinted, your stash is at risk every time it’s exposed to light.
That’s where Evergreen stash jars stand apart. We’ve designed ours with an external silicone sleeve that protects your flower from harmful UV rays. This sleeve doesn’t just shield your cannabis from light, it also adds an extra layer of insulation and durability.
Most storage solutions stop at “airtight,” but we knew that wasn’t enough. Protecting against UV degradation is crucial for keeping cannabis as close to harvest-fresh as possible, and it’s one of the biggest oversights in typical glass storage. Our jars let you enjoy the benefits of glass without the drawbacks, ensuring your flower is safe from one of its greatest natural enemies: sunlight.
Humidity and Temperature: Tackling the Most Overlooked Factor
Here’s the truth: even the best airtight, UV-protected jar still won’t keep cannabis fresh if humidity isn’t properly managed. This is the area where most storage systems fail entirely.
If you’ve ever thrown an orange peel or lettuce leaf into your jar to “rehydrate” dry buds, you know what we’re talking about.
While these DIY tricks seem to work at first, they create massive swings in humidity and increase the risk of mold and contamination. Even clay buttons and humidity packs, while better, are still far from perfect. Packs eventually dry out and get thrown away, which means more money spent and more waste in landfills.
This frustration is what inspired us to create the Evergreen Pod. After years of testing and prototyping, we developed a reusable, rechargeable pod that maintains the ideal 55%–65% humidity range inside your jar. It works through two-way humidification, meaning it adds or removes moisture as needed to keep your cannabis right in that sweet spot: not too dry, not too moist.
Best of all, the Evergreen Pod is designed to last. Instead of tossing it out like a humidity pack, you can recharge it again and again using nothing more than drinking water. It’s simple, sustainable, and effective, all while saving you money in the long run.
So, What is Your Stash Jar Missing?
Chances are, your stash jar does a decent job in one or two areas but falls short in others. Maybe you’ve got a glass jar, but it’s letting in light. Maybe you’ve got UV protection, but no humidity control. Or maybe you’re still relying on plastic bags or DIY fixes that leave your cannabis vulnerable to drying out, losing potency, or even developing mold.
With Evergreen, you don’t have to compromise. Our stash jars combine the proven reliability of glass, the crucial protection of a UV-blocking silicone sleeve, and the groundbreaking innovation of our reusable Evergreen Pod for humidity control. Together, they solve the three biggest problems with cannabis storage and give you exactly what your stash has been missing all along: freshness, potency, and peace of mind.
