The black screw cap paired with cobalt blue glass is a classic, everyday combination: it allows simple, fast use for any preparation that does not require a pipette dropper or a child-resistant mechanism. The cobalt blue glass provides light filtering and a vintage apothecary look, while the screw cap delivers a reliable yet flexible closure. This pack of 192 is designed for those seeking a straightforward format in larger volumes.
What the pack of 192 contains
192 cobalt blue glass dropper bottles + 192 black plastic screw caps. Nominal fill capacity 10 ml, bottle height approximately 57 mm, diameter 24 mm, empty weight 28-33 g each. Total package weight is around 5.9 kg. Country of origin: China.
Cobalt blue glass — UV protection and vintage aesthetics
Cobalt blue glass blocks UV radiation and shorter wavelengths of visible light, which is particularly favourable for storing delicate linalool-based essential oils (lavender, bergamot, ylang, neroli). The deep blue tone also gives a distinct vintage apothecary character to finished preparations, making it easier to develop a consistent, characterful own-brand product line. Blue glass is not fully opaque, so the fill level remains observable depending on the lighting.
Black screw cap — simple, reliable closure
The black plastic screw cap is made with an inner sealing surface that, when properly tightened, provides a virtually airtight closure. The advantage of the classic screw closure is its simplicity: quick to open and close, requiring no separate mechanism or action. This cap type is ideal for preparations with daily use and no specific safety or dispensing requirements. For longer storage (12 months and over), it is advisable to periodically check the condition of the seal, as plastic seals can deform over time. With strongly citrus-based essential oils, plastic may be subtly affected — for these, an aluminium cap may be a better choice.
Typical areas of use
- Everyday essential oil blends and aromatherapy recipes
- Simple cosmetic solutions, facial toners, hair-care bases
- Short- and medium-term storage of botanical tinctures and hydrosols
- Household DIY solutions and natural cleaning products
- Vintage-styled own small-business product line
Cleaning and storage
We recommend rinsing new bottles in warm soapy water before first use, then drying thoroughly. An isopropyl alcohol rinse is the most effective way to remove residual scents. Wash the screw cap separately from the bottle and avoid the dishwasher. Store filled bottles in a cool, dark place away from direct sunlight for optimal preservation of the contents.