Amber Round Sirup Glass Bottle, 28 mm, Bakelite Black Cap, 300 ml

Brown glass medicine bottle 300 ml with a black low cap protects from light everything that light can damage: plant and massage oils, hydrolats, tonics, tinctures, or stock blends of oils and fragrance compositions. The bottle and cap share the same thread type, making it a complete set with no need to test closures. The set is approved for direct contact with food and cosmetics, so it works equally well for homemade herbal oils, syrups, vinegars and infusions as for cosmetic preparations.

Why choose this set

• Light protection – brown glass absorbs a large portion of light that accelerates the oxidation of oils, fading of colorants and loss of fragrance. The contents retain their original properties for longer even outside a dark cabinet.
• Non-reactive glass – glass does not absorb fragrances, does not stain and does not react with alcohol, acidic contents or essential oils. It is therefore suitable for tinctures, vinegars and concentrated blends, where plastic containers soften over time or take on odours.
• Low cap – the compact closure does not increase the bottle height; the set stands steadily on a shelf or a production table.
• One decision instead of two – the bottle and cap share the same neck type; no need to search or test the closure separately.

What the set is suitable for

The 300 ml volume corresponds more to a stock or family-size container than to a small retail bottle for a serum. In cosmetic production it is useful for storing blended oil mixtures, macerates, hydrolats and tonics before filling into smaller bottles, or as a refill for dispensing bottles. At home it works well for massage and bath oils, liquid soaps without a pump, herbal tinctures, fruit vinegars, syrups or herb-infused kitchen oil.

It is less suitable for products that are dispensed drop by drop or applied directly from the container onto the skin. For such use, the contents are decanted into smaller bottles with a dropper or pump.

Nominal and total volume

Nominal volume is the amount the bottle is designed for during standard filling and is stated on the label. Total volume to the brim is the physical capacity up to the neck and is always slightly larger. The difference provides a margin for the closure and expansion of the contents with temperature change, and also prevents the contents from reaching the thread when closing. The bottle is therefore filled to the nominal volume, not to the brim. Both values are listed in the product specifications.

Working with the container and closure

Before first filling, both the bottle and cap are washed with warm soapy water, rinsed thoroughly and sanitised with isopropyl alcohol or ethanol. Then leave them to dry completely, neck down. Residual water would dilute oil-based contents and, in cosmetics without preservation, increase the risk of microbial growth.

Glass tolerates sudden temperature changes poorly. Do not pour a hot mixture into a cold bottle, and let a bottle taken from the cold warm up to room temperature first. Tighten the cap by hand, not by force. Over-tightening will not improve the seal and the plastic may crack over time.

A self-adhesive label can be applied around the cylindrical body of the bottle. The set can be reused after the same washing and sanitising process. At the end of its life, the glass goes into glass recycling and the unscrewed cap among plastics.

Other closures with the same neck type listed in the product specifications also fit the bottle. Ready-made combinations with a pump or spray head are available in the Handymade range.

Frequently asked questions