Certified refurbished means nearly perfect.

Our Certified Refurbished units may have slight visual imperfections such as small scratches or bubbles in the handblown glass parts that did not pass our rigorous aesthetic quality control process. All of the mechanical and electrical components are the same quality as new units. What do most people say when they see a Certified Refurbished unit? "I don't see anything wrong with it!"

That's because components with any major aesthetic issues, like big scratches or dents, do not make it into our Certified Refurbished units and are instead recycled.

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 refurbished Ratio is built to last and covered by a 2 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.

Alexander Mills: "“An automatic coffee maker?” I exclaimed within me, “Does she even know who I am and what I stand for?"

Daily Coffee News' detailed look at the Ratio Six prototype

Gear Patrol: "One of Our Favorite Coffee Companies Just Made a Cheaper, Better Brewer"

Watch the Clive Coffee overview video of the Ratio Six: