Standard polyethylene or polystyrene foam liners rapidly dissolve when exposed to volatile terpenes, causing pieces of contaminated foam to fall directly into your extract. Because terpenes act as highly active organic solvents, they chemically attack and blister cheap PE and PS liners, which can ruin your entire batch by shedding synthetic particles directly into premium rosins, badders, or live resins. Using specialized, solvent-resistant foil liners is the industry standard to prevent this chemical breakdown, protecting your product's purity and flavor. To ensure total product safety and pass strict lab tests, pair your glass jars with caps featuring heat-activated induction foil liners.

We offer complete purchasing flexibility by selling our glass concentrate jars both as pre-matched jar and cap bundles or as standalone glass bases. Sourcing your glass jars unlidded is highly beneficial if you utilize a separate closure vendor, while our pre-matched sets guarantee a perfect, secure thread alignment right out of the box. To view our full line of compatible child-resistant and standard caps featuring terpene-safe induction foil backings, browse our Caps and Lids Collection.

We support boutique craft labs and high-volume extraction facilities alike by offering our jars down to single units, with full wholesale cases starting at 360 units. Because small glass jars are highly fragile, our wholesale master cases of 360 units utilize thick, divided cardboard partitions that completely eliminate glass-on-glass friction. For loose orders under a full case, our warehouse team hand-packs and securely bubble-wraps each individual glass container to guarantee a damage-free arrival.

Because extract densities vary dramatically between dense distillates, whipped badders, and dry crumbles, you should refer to the exact milliliter and fluid dram capacities listed on each page. A single gram of dense distillate sits much lower in a jar than a gram of whipped solventless rosin or airy crumble, making generic weight-based sizing estimates highly unreliable. Rather than risking product overflow or excessive headspace, check the specific technical specifications table menus listed directly on each unique product listing page before checking out.