The earliest bottles or vessels were made by ancient man. Ingredients were melted to make glass and then clay forms were dipped into the molten liquid. When the glass cooled off,the clay was chipped out of the inside leaving just the hollow glass vessel. This glass was very thin as the fire was not as hot as modern day furnaces. The blowpipe was invented around 1 BC. Now,molten glass could be gathered on the end of the blow pipe and blown into the other end to create a hollow vessel. Eventually the use of a mold was introduced,followed by the invention of a semi-automatic machine called the Press and Blow.
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