Amber Boston Round Sirup Glass Bottle, PP28S, White Cap, 100 ml

The amber glass Boston medicine bottle with a volume of 100 ml and a white screw cap is a ready-made set for filling cosmetics. Amber glass lets through less light, so it protects light-sensitive contents: face and body oils, serums, toners, hydrosols and alcohol tinctures. The volume suits products that are used up within a few months, so it is a good fit for smaller batches and for your own bathroom cosmetics.

The LDPE cap screws onto the 28 mm neck and closes the bottle without dispensing. The contents are poured or decanted from it, which suits massage and bath oils, hair tonics, hair rinses and stock bottles from which the finished product is decanted into smaller containers. The set is declared as suitable for use with cosmetic products.

What it is suited for

• Vegetable and massage oils – dark glass slows the effect of light on unsaturated fatty acids, so oil blends with essential oils or oil extracts keep their original quality longer than in clear packaging.
• Toners and hydrosols – water-based products with a preservative are easy to pour from the medicine bottle onto a cotton pad or into the palm. When filling the water phase, make sure the packaging is clean and disinfected.
• Tinctures and alcohol extracts – glass does not react with alcohol and does not absorb scents, and the amber colour protects the dyes and active ingredients of the extract.
• Stock bottle – 100 ml is a reasonable amount for a production batch of serum or oil, which you then decant into smaller bottles with a dropper or sprayer.

Nominal and total volume

The nominal volume is the volume the packaging is designed for under normal filling. The total brimful volume is the physical volume of the bottle up to the neck, and you will find it in the parameters. The difference between them provides a reserve for the closure and for the expansion of the contents when the temperature changes. Fill to the nominal volume, not to the brim, otherwise the contents are pushed into the thread when the cap is screwed on and the bottle may leak.

What to know when filling and using

Before the first filling, wash the bottle and the cap, rinse them with clean water, disinfect them with isopropyl alcohol or ethanol and let them dry completely. Residual water in the neck or in the thread of the cap would needlessly burden the preservative system in a water-based product and would collect at the bottom in an oil-based product.

Glass does not tolerate sudden temperature changes well. Do not pour a hot water phase or a freshly made emulsion into a cold bottle; let the contents cool to room temperature first. The bottle must not be heated with its contents, either on a hob or in a microwave.

The cap is made of soft LDPE plastic and is tightened by hand without tools. For products with a high proportion of essential oils or organic solvents, we recommend checking the behaviour of the cap with your specific formulation: after a few weeks, check that the plastic has not softened, changed colour or started to let the scent through.

The bottle withstands repeated use. After emptying, it is enough to wash it with warm water and a cleaning product; for oils, pre-washing in hot water and degreasing will help. Then disinfect it again and let it dry. Replace the cap when the thread stops sealing.

Other closures with the same neck type, stated in the parameters, also fit the medicine bottle, and you will find ready-made combinations in the Handymade range. For your own combination, we recommend checking the seal and the behaviour of the closure with your specific formulation.

When sorting waste, the bottle belongs in glass and the cap in plastics; separate them before disposal.

Frequently asked questions