There's no minimum order on standard lines, and trade quantities are available. Some products are sold in pack sizes; check each product page or contact us for volume pricing.

Dimensions shown with a tolerance (±) are precise. Others are approximate. For label dimensions, please contact our team.

Yes. Alongside Miron glass, we stock clear, amber and coloured glass across our wider range.

UV glass and dark glass are common search terms for light-filtering glass packaging. Miron® glass can look almost black, but it is a specific deep violet glass, designed to selectively filter light: it reduces transmission across specific wavelengths while allowing selected wavelengths, not all light, to pass through. Results vary by formulation and storage conditions.

Look through a single wall of the bottle or jar towards a bright light and you'll see the violet colour.

Each container carries the Miron logo on its base. On wide cosmetic jars, the logo sits between the threads.

Miron glass is designed to selectively filter light, reducing transmission across specific wavelengths while allowing selected wavelengths to pass through. Light is one of several factors in how a product changes, alongside oxygen, temperature, moisture and handling.

A protective layer sprayed on the glass at around 600°C as it leaves the furnace, which helps prevent scratches during transport and filling.

Glass doesn't release anything into a product or absorb anything from it, it's waterproof and gas-proof, resists chemicals, and can easily be sterilised.

We don't recommend it, as liquids are hard to pour and there's a slight risk of leaking. They're ideal for spices, tea, solid honey, vitamins and dry goods.

Tap the side of the lid gently with a wooden spoon to loosen it.

No. Our pressure-sensitive seals are for dry products in jars only, as liquids react with the adhesive. Aluminium induction seals need a machine to apply.

Place the seal inside the lid with the printed side facing the lid, screw the lid onto the jar, and leave it closed for at least 24 hours.

Usually, but not always, as pumps have different dip-tube lengths. Check the compatible closures on each product page or ask our team.

Most Miron glass uses industry-standard neck finishes. Ceres, Eris and Sirius jars and the Carina 500 ml vitamin jar have unique threads and need Miron closures. Test any third-party closure for fit and leaks first.

In a code like 18/400, the first number is the diameter in millimetres across the outside of the threads, and the second is the thread style. See Neck Finishes Explained.

Miron checks weight, capacity and dimensions, and production-line machines test wall thickness, cracks and impurities on samples throughout production.

Check the delivery for damage straight away and let us know about anything that isn't right.

Send us the item numbers and quantities, your order number, a description of the problem and photos of any damage at salesdesk@colouredbottles.co.uk, and we'll resolve it as quickly as possible.

Yes, the glass is 100% recyclable. It's also robust enough to be reused many times.

Some closures are single-material (apothecary jar stoppers are all glass), while others, like pipettes, combine materials that need separating before disposal.

Rules vary by country and region, so check what your local recycling scheme accepts.