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Ratio Eight Coffee Machine

We are currently taking pre-orders with an estimated June ship date. Your Ratio purchase includes a custom Able Kone, a stainless steel filter made in the US (normally $60).


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Engineered for Extraordinary Coffee

Ratio is smarter than your average coffee maker. Beneath the exterior is precise brewing science, automated. Ratio is equipped with a powerful heating element. Where lesser machines struggle to maintain the optimum temperature - brewing either too hot or too cold - Ratio consistently delivers water at the ideal temperature of 200°.

Inspired by the precision of manual brewing with pourover kettles, Ratio uses a unique showerhead design to uniformly saturate the coffee grounds. This means a more complex cup of coffee for you - without extra complexity in your routine.

Hot water poured over fresh roasted coffee causes a bubbly interaction called a "bloom." The control board of Ratio applies a bloom cycle that allows the bloom to settle down before delivering the rest of the hot water. The result? More evenly extracted grounds and a more amazing cup of coffee.

Ratio Coffee Maker
  • Ratio Coffee Maker
  • Ratio Coffee Maker

Less Thinking and Better Drinking

Sometimes you just want a great cup of coffee without having to think about time, temperature, and other variables. We agree, which is why Ratio has just one button and no complicated programming. The subtle white lights on the front of the machine will tell you what's happening with the brew cycle, but you probably have better things to do like catch up on your morning read. Ratio won't mind at all.

Whether a 40 ounce carafe for the party, or a 16 ounce cup for the road, both should be equally easy and delicious. That's why we designed Ratio to automatically determine the amount of water you've added to the tank and adjust the brewing time accordingly.

You shouldn't have to be a trained barista to make great coffee, and you shouldn't have to be an engineer to clean your coffee maker. After brewing, simply rinse out the sturdy glass carafe with hot water, discard or compost the used paper filter, and you're done. For deeper cleaning every other week or so, Ratio cleaning detergent will keep the water tank and carafe sparkling clean.

Good Morning: Your Coffee Machine is Ready

There are coffee machines that make great coffee and there are coffee machines that look great. Ratio is the first coffee machine that is truly both, combining form and function.

The materials chosen for the Ratio machine juxtapose the precision of high tech with the irregularity of natural finishes. Die cast nickel-plated aluminum contrasts with Oregon black walnut and borosilicate glass.

Designed in Portland, Oregon, every Ratio machine is meticulously assembled by hand. While common appliances often have a built-in obsolescence and a life span of maybe 2-3 years, Ratio is designed to last.

Ratio Coffee Maker
KONE Filter

Able Kone Included

The Ratio Eight carafe is designed to use either Chemex paper filters or the Able KONE, a high quality stainless steel filter made in the US. Able Brewing develops high quality brewing equipment and has partnered with us to bring to market a KONE that is perfectly suited for brewing larger volumes of up to 40 ounces at a time. It is made of American-sourced stainless steel that is photo etched to create a precision filtering screen. If you like flavorful coffee without too much sediment, you'll love the Able KONE for Ratio.


  • Model: Eight
  • Edition: Walnut
  • Dimensions: 13.5" deep x 9" wide x 14" tall
  • Capacity: Brews up to 40oz. (eight 5oz. cups)
  • Warranty: 10 years
  • Powerful 1600 watt/110 volt heating element
  • Cantilevered top and base made of die cast aluminum with nickel-plated finish
  • Laboratory grade borosilicate glass water tank, supply lines, and carafe
  • Carafe holds Chemex paper filters or Able Kone stainless steel filter
  • Each unit entirely hand assembled and tested in Portland, Oregon