Elaine Bernard Coffee Maker January 20, 2019 13:44:17
A vacuum maker brews coffee using two chambers where vapor pressure and vacuum produce brew which is clean rich and smooth compared to other brewing methods. This type of maker is also known as vac pot siphon or syphon coffee maker and was invented by Loeff of Berlin in the 1830s. These types of makers have been used for more than a century in many parts of the world. The chamber material can be pyrex metal or plastic and the filter can either be a glass rod or a screen from cloth paper or nylon. The Napier Vacuum Machine presented in 1840 was an early example of this technique. While vacuum makers are generally to complex for everyday use they were prized for producing a clear brew and were quite popular until the middle of the twentieth century.
It has been a long time since I have used a manual drip coffee maker but I do have limited experience with them. I began many years ago to use the single cup model as I was the only java drinker in the household at the time. If you can boil water and measure a tablespoon full of coffee the hard part is done one can easily make a great cup using the manual drip method and is certainly cost effective as they are generally inexpensive. The larger styles can brew 8- 10 cups at a time.