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A modern British milk bottle owned by Dairy Crest Pint and half gallon returnable glass bottles From the second half of the 19th century, milk has been packaged and delivered in reusable and returnable glass bottles. They are used mainly for doorstep delivery of fresh milk by milkmen. Once customers have finished the milk, empty bottles are expected to be rinsed and left on the doorstep for ...
A key factor with glass milk bottles is the number of cycles of uses to be expected. Breakage, contamination, or other loss reduces the benefits of returnables. A key factor with one-way recyclables is the recycling rate: In the US, only about 30-35% of high-density polyethylene bottles are recycled.
A bottle is a rigid container with a neck that is narrower than the body, and a "mouth". Bottles are often made of glass, clay, plastic, aluminum or other impervious materials, and are typically used to store liquids. The bottle has developed over millennia of use, with some of the earliest examples appearing in China, Phoenicia, Rome and Crete.
A bottle cap or bottle top is a common closure for the top opening of a bottle. A cap is sometimes colorfully decorated with the logo of the brand of contents. Metal caps with plastic backing are used for glass bottles, sometimes wrapped in decorative foil. Metal caps are usually either steel or aluminum, [1] and of the crown cork type.
Examples of returnable glass milk bottles from the late 19th century. A reusable bottle is a bottle that can be reused, as in the case as by the original bottler or by end-use consumers. Reusable bottles have grown in popularity by consumers for both environmental and health safety reasons. Reusable bottles are one example of reusable packaging.
Many milk bottles have integral handles. Milk bags are also in use. The milk is sold in a plastic bag and put into a pitcher for use. Larger bags are the inner bladder of a bag-in-box, sometimes used for institutional dispensing. Small individual containers of milk and cream are often thermoformed or injection molded and have a peelable lid ...
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For bottle-to-bottle recycling, the bottles have to be decontaminated which was achieved by introducing "super-clean recycling processes," which in the US was done for the first time in 1991. [5] These processes clean "recycled PET flakes to contamination levels similar to virgin PET pellets," so that they can be reused as beverage containers. [5]