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Boston round (bottle) facts for kids

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2 oz - 60 ml Amber Glass Boston Round Bottles with Gold Metal and Glass Droppers
A collection of amber Boston round bottles with droppers.

A Boston round bottle is a special type of container. People also call it a Winchester bottle. It is a strong and heavy bottle. You often see these bottles in places that make medicines or chemicals. They are usually made from amber (brown) glass. This special glass helps to block out harmful UV light. But you can also find them made from different types of plastic.

History of the Boston Round Bottle

The idea for the "Winchester quart" bottle first appeared in the United Kingdom. This was back in the 1800s. At that time, it could hold about 2.27 litres of liquid. There was an old system of measurements called "Winchester." This system was used for dry goods. Even today, the "Winchester bushel" is still used in the United States.

However, the Winchester quart bottle is not really related to those old "Winchester" measurement units. In the 1900s, the size of the Winchester Quart changed. It was updated to hold exactly two and a half litres. This change made it fit better with the metric system.

How a Boston Round Bottle Is Made

A "Boston round" bottle has a very specific shape. It is shaped like a cylinder, which means it is round all the way down. It does not have a handle. The top part of the bottle has a short, curved "shoulder." This is where the bottle narrows before the opening.

The opening of the bottle has threads. These threads are designed to work with a screw cap. This allows the bottle to be sealed tightly. This design makes the Boston round bottle very useful for storing many different liquids safely.

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