What's Happening Inside Your Filter Coffee Maker? A filter coffee maker is a cost-effective machine, simple to use that produces filter ground coffee. It works by heating water in an aluminum tube and then allowing it to flow through ground coffee. There are a variety of methods to make filter https://coffeeeuk69684.blogs100.com/30919854/10-factors-to-know-on-drip-coffee-makers-you-didn-t-learn-in-school