420 Science is a Colorado-based stash jar and storage accessory brand best known for UV-protective glass jars designed specifically to preserve cannabis flower. The brand's signature products are the UV Screw Top Jar (amber UV-blocking glass), Clear Screw Top Jar (clear glass for visual identification), and Pop Top Jar (press-tab opening for quick access). 420 Science is also known for high-profile art collaborations with cannabis-culture artists like Killer Acid and Wokeface, which produce limited-edition designs across the jar lineup. The brand emphasizes proper cannabis storage — UV protection, airtight seals, and humidity control — over generic mason jar alternatives.

What is the difference between UV Screw Top, Clear Screw Top, and Pop Top jars?

UV Screw Top jars use amber-tinted glass that blocks ultraviolet light — the spectrum that degrades cannabinoids and terpenes over time. Best for long-term storage of flower you want to keep fresh for weeks or months. Clear Screw Top jars use standard clear glass that lets you visually identify strain contents at a glance, but offers no UV protection — best for short-term storage or strains that turn over quickly. Pop Top jars use the press-tab opening mechanism familiar from dispensary packaging — push down on one side of the lid and the opposite side pops up for quick one-handed access. Available in both UV-protected and clear variants. Pop Tops are best for daily-access containers; Screw Tops are better for vault-style long-term storage.

Why are UV-protective jars important for cannabis storage?

Ultraviolet light degrades the active compounds in cannabis flower faster than almost any other environmental factor. UV exposure causes THC to oxidize into CBN (the cannabinoid associated with sedation and weaker psychoactive effects), breaks down delicate terpene molecules that produce flavor and aroma, and accelerates the overall aging process of cured flower. A clear glass jar sitting on a sunny shelf can lose 20 to 30 percent of its THC potency within a few months. UV-protective amber glass blocks the wavelengths responsible for this degradation while still letting you see the contents loosely. For long-term storage of premium flower, UV-protective jars combined with a Boveda or Integra humidity pack preserve flower at near-cured quality for 6 months or longer.

What art collaborations does 420 Science offer?

420 Science partners with cannabis-culture artists on limited-edition jar designs. The Killer Acid collaboration features designs like 420 Cat, Miles of Smiles, Happy Bong, and No Bad Trips across both UV Screw Top and Pop Top jar formats. The Wokeface collaboration features designs like Toke Face, Woke Cosmic Mushroom, and the JR991 edition across UV and Clear Screw Top variants. Each collab is produced in limited runs — once a particular design sells out, restocks depend on whether 420 Science renews the partnership. The underlying jar performance is identical to the base 420 Science models; the difference is purely the printed artwork on the glass exterior.

How do I clean my 420 Science jar?

Empty the jar and remove any humidity pack inside. Rinse the jar interior with warm water to remove loose plant material. Add a few drops of unscented dish soap and warm water, swirl thoroughly to clean all interior surfaces, then rinse until completely free of soap residue. For deeper cleaning of stubborn resin or terpene buildup, fill with isopropyl alcohol for 15 to 30 minutes, then rinse with warm water. Dry the jar completely — invert and air-dry, or wipe with a lint-free cloth. Avoid the dishwasher: the high heat can crack the glass and damage the screw-top seal. The amber UV-protective tinting is integral to the glass (not a coating), so it won't wash off with normal cleaning.

What size 420 Science jar do I need for my flower?

As a general rule, fill 420 Science jars to about three-quarters capacity for optimal humidity control — too empty and the humidity pack works overtime to maintain RH; too full and there's no air buffer for humidity regulation. The Mini Jar holds about an eighth ounce (3.5g). The Small Pop Top holds about a quarter ounce (7g). The Standard Screw Top holds about a half ounce (14g). The Large Screw Top holds about a full ounce (28g). For long-term vault storage, size up so you can pair with a Boveda 8g humidity pack in the headspace. For daily-access containers that get opened frequently, size down so the air exchange per opening is minimized.

Why do 420 Science jars cost more than mason jars?

420 Science jars use thicker glass, tighter seals, and (in the UV variants) cannabis-specific amber UV-blocking material that standard mason jars don't offer. A mason jar will store cannabis adequately for short periods, but the clear glass exposes flower to UV degradation, and the standard rubber seal can dry out over time. 420 Science seals are engineered for repeated opening without losing airtightness, the UV glass actively protects cannabinoids from light damage, and the Pop Top opening is more convenient for daily access. The Pop Top jars also use a child-resistant press-tab mechanism (push down to open) that meets dispensary-grade child resistance standards — a feature that's required in regulated markets and useful for households with children or pets.

420 Science

420 Science is a Colorado-based stash jar brand that builds UV-protective cannabis storage from the ground up — amber-tinted glass that blocks the UV light spectrum responsible for THC degradation and terpene loss. Discreet Smoker stocks the full 420 Science catalog including UV Screw Top jars, Clear Screw Top jars, Pop Top jars, and the limited-edition Killer Acid and Wokeface artist collaborations. Free shipping on orders over $69, discreet packaging on every order.

About 420 Science

420 Science was founded specifically to solve the cannabis storage problem — mason jars and Tupperware don't protect flower from UV degradation or maintain the right humidity for cured flower. The brand's amber UV-blocking glass and Pop Top child-resistant openings address both issues in a single product line that ranges from eighth-ounce mini jars to full-ounce vaults.

UV Screw Top Jars

Amber-tinted glass that blocks the UV spectrum responsible for cannabis degradation. Best for long-term storage of flower you want to keep fresh for weeks or months. Available in standard 420 Science branding and in limited-edition Killer Acid and Wokeface art collaborations (420 Cat, Miles of Smiles, Toke Face, Woke Cosmic Mushroom, and more).

Clear Screw Top Jars

Clear glass for users who prefer visual strain identification at a glance — best for short-term storage or strains that turn over quickly. Available in the Gold Leaf colorway and in art collaboration editions including Killer Acid 420 Cat, Killer Acid Miles of Smiles, and Wokeface Toke Face JR991.

Pop Top Jars

The press-tab opening familiar from dispensary packaging — push down on one side and the opposite side pops up for quick one-handed access. Available in standard 420 Science branding, the Write & Erase variants (Clear and Modern Black) that let you label strain contents with a dry-erase marker, and the Killer Acid Happy Bong and No Bad Trips collaboration editions.

Killer Acid Collaborations

The Killer Acid x 420 Science partnership produces some of the brand's most recognized designs: 420 Cat, Miles of Smiles, Happy Bong, and No Bad Trips. Available across both UV Screw Top and Pop Top jar formats with the artist's signature surreal cartoon aesthetic.

Wokeface Collaborations

The Wokeface x 420 Science collaboration features designs like Toke Face, Woke Cosmic Mushroom, and the JR991 edition across UV Screw Top and Clear Screw Top variants.

Why Buy 420 Science from Discreet Smoker

Counterfeit cannabis storage jars are rare but not unheard of, and authentic 420 Science jars use specific UV-blocking glass formulations that knockoffs can't match. Discreet Smoker sources all 420 Science inventory through authorized channels. Orders ship in unbranded packaging with no smoke shop or vape branding visible, and free shipping kicks in at $69.

Sidebar

Frequently Asked Questions

What is 420 Science?

420 Science is a Colorado-based stash jar and storage accessory brand best known for UV-protective glass jars designed specifically to preserve cannabis flower. The brand's signature products are the UV Screw Top Jar (amber UV-blocking glass), Clear Screw Top Jar (clear glass for visual identification), and Pop Top Jar (press-tab opening for quick access). 420 Science is also known for high-profile art collaborations with cannabis-culture artists like Killer Acid and Wokeface, which produce limited-edition designs across the jar lineup. The brand emphasizes proper cannabis storage — UV protection, airtight seals, and humidity control — over generic mason jar alternatives.
What is the difference between UV Screw Top, Clear Screw Top, and Pop Top jars?

UV Screw Top jars use amber-tinted glass that blocks ultraviolet light — the spectrum that degrades cannabinoids and terpenes over time. Best for long-term storage of flower you want to keep fresh for weeks or months. Clear Screw Top jars use standard clear glass that lets you visually identify strain contents at a glance, but offers no UV protection — best for short-term storage or strains that turn over quickly. Pop Top jars use the press-tab opening mechanism familiar from dispensary packaging — push down on one side of the lid and the opposite side pops up for quick one-handed access. Available in both UV-protected and clear variants. Pop Tops are best for daily-access containers; Screw Tops are better for vault-style long-term storage.
Why are UV-protective jars important for cannabis storage?

Ultraviolet light degrades the active compounds in cannabis flower faster than almost any other environmental factor. UV exposure causes THC to oxidize into CBN (the cannabinoid associated with sedation and weaker psychoactive effects), breaks down delicate terpene molecules that produce flavor and aroma, and accelerates the overall aging process of cured flower. A clear glass jar sitting on a sunny shelf can lose 20 to 30 percent of its THC potency within a few months. UV-protective amber glass blocks the wavelengths responsible for this degradation while still letting you see the contents loosely. For long-term storage of premium flower, UV-protective jars combined with a Boveda or Integra humidity pack preserve flower at near-cured quality for 6 months or longer.
What art collaborations does 420 Science offer?

420 Science partners with cannabis-culture artists on limited-edition jar designs. The Killer Acid collaboration features designs like 420 Cat, Miles of Smiles, Happy Bong, and No Bad Trips across both UV Screw Top and Pop Top jar formats. The Wokeface collaboration features designs like Toke Face, Woke Cosmic Mushroom, and the JR991 edition across UV and Clear Screw Top variants. Each collab is produced in limited runs — once a particular design sells out, restocks depend on whether 420 Science renews the partnership. The underlying jar performance is identical to the base 420 Science models; the difference is purely the printed artwork on the glass exterior.
How do I clean my 420 Science jar?

Empty the jar and remove any humidity pack inside. Rinse the jar interior with warm water to remove loose plant material. Add a few drops of unscented dish soap and warm water, swirl thoroughly to clean all interior surfaces, then rinse until completely free of soap residue. For deeper cleaning of stubborn resin or terpene buildup, fill with isopropyl alcohol for 15 to 30 minutes, then rinse with warm water. Dry the jar completely — invert and air-dry, or wipe with a lint-free cloth. Avoid the dishwasher: the high heat can crack the glass and damage the screw-top seal. The amber UV-protective tinting is integral to the glass (not a coating), so it won't wash off with normal cleaning.
What size 420 Science jar do I need for my flower?

As a general rule, fill 420 Science jars to about three-quarters capacity for optimal humidity control — too empty and the humidity pack works overtime to maintain RH; too full and there's no air buffer for humidity regulation. The Mini Jar holds about an eighth ounce (3.5g). The Small Pop Top holds about a quarter ounce (7g). The Standard Screw Top holds about a half ounce (14g). The Large Screw Top holds about a full ounce (28g). For long-term vault storage, size up so you can pair with a Boveda 8g humidity pack in the headspace. For daily-access containers that get opened frequently, size down so the air exchange per opening is minimized.
Why do 420 Science jars cost more than mason jars?

420 Science jars use thicker glass, tighter seals, and (in the UV variants) cannabis-specific amber UV-blocking material that standard mason jars don't offer. A mason jar will store cannabis adequately for short periods, but the clear glass exposes flower to UV degradation, and the standard rubber seal can dry out over time. 420 Science seals are engineered for repeated opening without losing airtightness, the UV glass actively protects cannabinoids from light damage, and the Pop Top opening is more convenient for daily access. The Pop Top jars also use a child-resistant press-tab mechanism (push down to open) that meets dispensary-grade child resistance standards — a feature that's required in regulated markets and useful for households with children or pets.