Ratio Six

$345 $242

This item will be released December 3, 2019.

For a limited time, 0% financing on approved credit.

Thanks to Ratio Six, world-class coffee is more accessible than ever. Engineered with the brewing precision of the Ratio Eight, the Six offers the one-button convenience of its bigger sibling with a leaner form and lighter price. 

Place a preorder now to reserve your Ratio Six! We are offering a limited quantity at this price. Your preorder can be cancelled for a full refund at any time.

The Ratio Six is expected to ship by December 3rd, 2019.

303 available for pre-ordering

What’s included



Delicious Coffee. Simplified.

At Ratio, we believe everyone should be able to enjoy world-class coffee without the fuss. Which is why we build coffee machines for flavor, precision, simplicity, and beauty—no more and no less. We call it “convenience without compromise.” Our customers call it “I’m never buying another coffee maker again.”

Thanks to Ratio Six, the world’s best coffee is more accessible than ever.

 Featuring unique materials and an innovative build process, the Ratio Six delivers an experience comparative to its older sibling at a leaner cost, slimmer profile, and lighter weight. All despite having the same brewing capacity (1.25 liters / 40 ounces) and powerful 1400 W heating element.

Less Thinking. Better Drinking

Sometimes you just want a great cup of coffee without having to think about time, temperature, and other variables. Which is why Ratio has just one button and no complicated programming.

After the button is pressed, Ratio simulates a skilled barista pourover process: First, hot water is dispersed through a stainless steel spiral showerhead across the grounds, causing a bubbly interaction called a “bloom.” The control board allows the bloom to settle before delivering the rest of the hot water slowly near the ideal temperature (200º). The result? More evenly extracted grounds and a more amazing cup of coffee.

After brewing, simply discard or compost the used paper filter and rinse out the thermal carafe with hot water. That’s it. For deep cleaning—we recommend twice a month—Ratio Wash keeps the water tank and carafe sparkling clean.

Modern Quality

There are coffee machines that make great coffee, and there are coffee machines that look great. Ratio Six is both, combining form and function.

Designed in Portland, Oregon, every Ratio machine is meticulously assembled by hand. While common appliances often have a built-in obsolescence and 1-3 year life span, every Ratio is built to last and covered by a 5-year limited warranty.

Flexible Brewing

The Ratio Six ships with a thermal carafe designed for flat-bottom basket coffee filters. Prefer a conical filter? You can also use the Ratio Eight Thermal Carafe or Glass Carafe with a Chemex paper filter or stainless steel reusable Ratio Kone. Both the Ratio Six and Eight have the same brewing capacity (1.25 liters / 40 ounces).

Trying to Choose Between the Six and Eight?

Review the comparison chart between our machines to select the one that’s best for you.

In the Press

Check out Daily Coffee News’ detailed look at the Ratio Six. 

What's Included

  • Ratio Six Coffee Maker
  • Ratio Six Thermal Carafe
  • Ratio Microfiber Towel
  • Basket Paper Filters - 4 sample filters
  • Operation guide
  • Power cord


  • Brews up to 40oz. (eight 5oz. cups)
  • 5-year warranty
  • Powerful 1400 watt/110 volt (220 volt releases early 2020)
  • Dimensions: 13.5" deep x 6.75" wide x 14.25" tall
  • Weight: 8 lbs
  • Cantilevered top made of precision stamped stainless steel with a satin finish
  • Laboratory grade borosilicate water lines
  • BPA-free copolymer water tank
  • Carafe holds flat bottom basket filters such as Melitta
  • Designed in Portland, Oregon


  • Portland, Oregon-based high-end home coffee brewer maker Ratio is about to introduce the first sibling to its Ratio Eight: an equally user-friendly but lower-priced sister brewer by the name of Ratio Six.