The 7ml Low Profile Heavy Bottom Glass Jar is a lab-grade concentrate container built for extractors, processors, and brands who need packaging that performs on the bench and looks right on the shelf. At 7ml (0.24 fl oz), these jars nail the sweet spot for gram fills, R&D samples, and small-batch runs without wasting glass or headspace. The thick weighted base keeps jars planted during fills and display, while the black screw-top lid threads clean and seals tight to lock in freshness and aroma.
Available in clear or frosted glass, so you can show off product color and clarity or go for a softer, more premium aesthetic that lets your label do the talking.
Key benefits
- Right-sized for concentrate work — 7ml capacity fits typical gram fills with room to spare, no wasted space or oversized containers eating up shelf real estate.
- Heavy bottom stays put — Weighted base means these don't tip when you're moving fast through a fill run or when they're sitting in a retail display next to curious fingers.
- Seal that actually holds — Black screw-top threads on smooth and snug, keeping terps locked in and air out between fills and during transport.
- Two looks, same performance — Clear glass for full product visibility, frosted for that higher-end matte finish. Both share identical dimensions and stability.
- Packs and ships clean — Low-profile footprint means these tray up nicely, stack in boxes without drama, and make inventory counts less of a headache.
- Plays nice with existing workflows — Consistent sizing and threading integrate into most filling, weighing, and labeling setups without requiring new trays or fixtures.
Best for
Licensed extractors and small-batch hash makers who want their concentrates packaged in something that looks professional without the premium markup. R&D teams who need consistent sample containers that won't skew results or look janky in documentation photos. Brands building out a storage and packaging system that can scale from craft batches to full production runs.
Also solid for personal use if you're the type who keeps concentrates organized instead of scattered across random containers. Not the flashiest jars on the market, but they do the job without breaking or looking cheap.
How to use it
Tare your scale with an empty jar and lid, fill to target weight, thread the lid on until you feel it seat. The heavy base keeps things stable while you work, which matters when you're fifty jars into a run and your hands are getting tired.
Stage your jars on a nonstick dab mat during fills. Any drips land somewhere you can actually clean instead of gunking up your stainless benchtop. Once filled and sealed, jars are ready for labeling, cold storage, or boxing depending on your workflow.
If you're pulling jars from cold storage, let them come back to room temp before cracking the seal. Opening cold jars in warm, humid air introduces moisture, and nobody wants condensation mixing with their product.
Specifications
| Capacity | 7 ml (0.24 fl oz) |
|---|---|
| Jar material | Glass (Clear or Frosted options) |
| Profile | Low-profile with heavy-bottom base |
| Lid style | Black screw-top, non-child-resistant |
| Dimensions | Short, wide form factor for easy traying |
Fit and compatibility
The low-profile design works well with pre-cut labels and tamper bands sized for short jars. Lines up in rows on standard filling trays and fits most shallow boxes used in glass jar packaging setups.
One thing to know: these lids are non-child-resistant. That makes them ideal for lab environments, R&D work, and markets where CR closures aren't mandated. If you're selling direct to consumers in a regulated market, check your local packaging requirements first. Some operators pair these with CR outer packaging like compliant boxes or mylar bags where regulations allow that approach.
Cleaning and reuse
Let the jar cool to room temperature, then scrape or wipe out remaining product. For a deeper clean, soak in isopropyl alcohol, rinse with clean water, and let dry completely before refilling. Lids can be wiped down and air dried. These jars hold up to repeated cleaning cycles without clouding or degrading, which is more than you can say for cheap single-use options.
FAQ
- How much concentrate actually fits in a 7ml jar?
The internal volume is approximately 7ml (0.24 fl oz). Most labs use them for gram fills or similar small portions, leaving a bit of headspace so product isn't pressed against the lid. You can fit slightly more if you're filling to the brim, but that makes for messier handling. - Are the lids child-resistant?
No. These are standard screw-top lids without CR mechanisms. They're designed for lab use, R&D samples, or applications where child-resistant packaging isn't required by regulation. For consumer retail in regulated markets, verify your local compliance requirements before using these as primary packaging. - What's the difference between clear and frosted glass?
Functionally identical — same capacity, same base weight, same lid threading. Clear shows off product color and consistency. Frosted diffuses light for a softer, more premium look and makes your label the visual focus instead of the contents. Pick based on branding preference. - Can I use these for different types of concentrates?
These work well across concentrate types — solventless, rosin, hydrocarbon extracts, whatever you're running. Glass is inert and doesn't react with oils or terpenes. If you're pressing or drying product before jarring, stage it on parchment paper first for easier handling. - Will these fit my existing filling setup?
If your current setup handles small concentrate jars, these should drop right in. The consistent dimensions and standard threading work with most manual filling stations and semi-automated equipment. The low profile actually makes them easier to work with than taller jars in tight spaces. - How do I store these long-term?
Filled jars do well in cool, dark storage. If you're using cold storage or refrigeration, bring jars to room temperature before opening to prevent condensation on the product surface. For more on proper concentrate storage practices, Leafly's concentrate guide covers the basics. - Are these just for commercial use or can I use them at home?
Plenty of people use these for personal stash organization. They're nicer than silicone containers for long-term storage and easier to clean than most alternatives. If you're building out a home dabbing setup, they pair well with rigs and tools from the smoke shop side of things.