For small sample bottles, the most expensive or most secure closure is not always the best choice for most artisans — often a simple, quick-to-handle screw cap is enough. This 255-piece pack of 5 ml green glass bottles comes with a black plastic screw cap that provides quick access to the contents during daily workshop work. Green glass meanwhile effectively protects citrus and perfume base oils from the degrading effects of light.
What the 255-piece pack contains
The pack contains 255 green glass dropper bottles of 5 ml each, every bottle paired with a black plastic screw cap. Each bottle is approximately 45 mm tall, 22 mm in diameter, with an average empty weight of 22 g. The total gross weight of the pack is 6.171 kg. Thanks to the standard GL18 thread, the cap closes snugly yet remains easy to handle.
Green glass and dual light filtration
Green glass, beyond its classic apothecary appearance, also offers a functional advantage: it moderates not only the UV range but also the blue wavelengths of visible light. This particularly benefits citrus oils (bergamot, lemon, orange, grapefruit) and terpene-sensitive essences. Glass is chemically inert, so the scent profile of small samples is preserved cleanly.
Black plastic screw cap details
The black plastic screw cap is a simple, single-piece closure. The polypropylene material is resistant to essential oils, but for longer storage — particularly with citrus oils — it is worth inspecting the screw thread occasionally. The cap's advantage is ease of handling and quick opening-closing: ideal for experimental batches, sample transport, and workshop use. If long-term airtight storage is the goal, the aluminium cap is the better choice.
Areas of use
- Sample bottles for your own essential oil blends in workshop use
- Experimental batches of perfume bases and cologne samples
- Short-term storage of citrus essences
- Aromatherapy recipes in the testing phase
- Small-batch samples for your own cosmetic line
Cleaning and recycling
Before first use, wash the bottles and caps with warm water and mild detergent. Stubborn scent residues can be removed with a 70% alcohol rinse. Avoid the dishwasher, as high temperatures can deform the plastic cap over time. Green glass is recyclable; the black polypropylene cap should be collected separately in plastic recycling.