The aluminium cap is the classic, professional closure for amber dropper bottles: a clean metallic appearance, airtight seal, and no plastic to react with essential oil contents over time. This 50-piece spare-cap set contains silver aluminium caps, ideal for replacement, top-up, or for converting your own filling to a more professional look.
What this 50-piece cap set is for
The pack contains 50 silver aluminium caps, each matched to a standard dropper bottle neck. Each weighs roughly 3 g, with the pack reaching a gross weight of 1.65 kg. The cap rim diameter is about 22 mm and the height around 14 mm.
Material and construction
The cap is made of anodised aluminium in silver — the surface is protected by a hard, scratch-resistant oxide layer that guards the metal against corrosion. Aluminium is chemically inert: it does not react with essential oils, imparts no off-flavour or odour to the contents, and contains no BPA or phthalates. The inner sealing liner provides a tight, leak-proof closure.
Compatible bottles
The cap fits the standard neck of Természetkosár amber dropper bottle ranges: 10 ml (GBot-01 series), 15 ml, 30 ml, and other standard-neck sizes. The cap locks on by screwing, with the sealing liner closing on the neck rim. Before using on a non-standard bottle, compare the neck diameter with the cap's inner diameter.
What it is for: replacement, top-up, a more professional look
The spare cap is useful if the original cap has been damaged or lost; if you want to swap a black pipette or black TE cap for clean silver aluminium for a more uniform, more professional filling appearance; or if you want to fit your own gift blends with a neutral, long-life closure. For own-brand filling, the pure metallic surface gives a clean, technical-workshop aesthetic.
Cleaning and storage
The caps can be washed in warm, soapy water; for residual scent, rinse with 70% isopropyl alcohol. Avoid the dishwasher, as strongly alkaline dishwasher detergents can attack the anodised oxide layer and fade the silver colour. Store in a dust-free, dry place. Country of origin: China.