Amber Glass Bottle, Straight Top, 24 mm, Silver Aluminium Cap, 100 ml

This amber glass bottle with a capacity of 100 ml and an aluminium cap protects the contents from light and closes with a single thread, with no additional parts. It is suitable for facial and body oils, oil serums, toners, tinctures or concentrates that are dispensed by pouring and do not need a dropper or a pump. The complete set is declared suitable for contact with cosmetics.

Dark glass reduces the amount of light reaching the contents, which helps with products sensitive to oxidation, for example vegetable oils with a higher proportion of unsaturated fatty acids or preparations containing essential oils. The straight top of the neck makes filling with a funnel or syringe easier. The silver surface of the cap matches the glass, so the packaging looks uniform even without a plastic closure.

Bottle and cap as a whole

• 24/410 neck finish – the same neck type on the bottle and the cap, so the set seals without any adapter or transition piece.
• Aluminium cap with liner – inside, it has a foam polyethylene (EPE) sealing liner that sits on the neck of the bottle and seals in the contents.
• Amber glass – the contents are only partly visible, so check the level by holding the bottle against the light.
• Dispensing by pouring – the contents are dispensed by tilting the bottle. With thicker oils and serums, it is more precise to pour the required amount into your palm or into a smaller container.

What it is suitable for

This set is most often filled with oil-based products: massage and body oils, facial oils, herbal oil macerates or macerated oils. Dark glass slows their yellowing and changes in fragrance caused by light. It also works for toners, hydrolates and facial waters applied with a cotton pad, and for tinctures or alcohol extracts, where alcohol-resistant glass is valued. It can also be used as a stock bottle for raw materials, from which you decant into smaller containers with a dropper or sprayer.

The 24 mm neck is not suitable for creams and thick emulsions, as the contents would be difficult to get out of the bottle. For such textures, we recommend a jar or a bottle with a pump.

Volume and filling

The nominal volume of 100 ml is the amount the bottle is designed for with normal filling. The brimful capacity given in the parameters is the physical volume up to the top of the neck. The difference between them forms a reserve for the cap liner and for the expansion of the contents with changes in temperature.

Good to know

Before the first filling, wash the bottle and the cap, disinfect them with isopropyl alcohol or ethanol and let them dry completely. Residual water in the neck or in the cap liner would get into an anhydrous oil. Do not pour hot mixtures into cold glass, as a sudden change in temperature puts stress on the glass. Let the product cool to at least room temperature and only then fill.

Tighten the aluminium cap by hand with moderate force. Overtightening compresses the liner, and it may seal less well the next time you open the bottle. For contents with a higher proportion of essential oils or solvents, we recommend checking how the cap liner behaves with your specific formulation, for example with a one-week test in a filled bottle lying on its side.

You will find closures with a 24/410 neck finish and ready-made combinations of a bottle with a dropper, sprayer or pump in the Handymade range. If you make your own combination, we recommend checking the tightness, dispensing and behaviour of the packaging with your specific formulation.

After washing, the bottle can be reused. At the end of its life, the glass goes in the glass recycling and the aluminium cap, once unscrewed, in the metal recycling.

Frequently asked questions