The Napier Vacuum Machine by James Robert Napier, presented in 1840, was an early example of this technique. While vacuum coffee makers generally were excessively complex for everyday use, they were prized for producing a clear brew, and were quite popular until the middle of the twentieth century.
The Napier Vacuum Machine, created by James Robert Napier in 1840, was an early instance of this technique. While most vacuum coffee makers were overly complicated for everyday use, they were highly valued for producing a clear brew and remained quite popular until the middle of the twentieth century.