The Chemex Ottomatic is a top-of-the-line coffee maker perfect for anyone who loves a good cup of coffee. One of the best things about the Ottomatic is that it is very versatile and can be used with different-sized Chemex.
The most popular size to use with the Ottomatic is the six-cup Chemex, but it also works well with the three-cup and eight-cup Chemex.
Keep in mind that the Ottomatic brews coffee at a slightly higher temperature than most other coffee makers, so you may want to use a slightly larger Chemex if you are planning on making a lot of coffee at once.