Ratio Four Coffee Machine (Certified Refurbished)

$47.99

The Ratio Four Coffee Machine (Certified Refurbished) is built for coffee preparation with a focus on consistent performance, practical operation, and durable construction.

Key features

Meet the Ratio Four – our most compact and versatile brewer, designed for coffee lovers who want barista-quality results in smaller batches. Ideal for your daily solo cup or a generous travel mug, the Four delivers between 5 to 20 ounces of perfectly extracted coffee.
This certified refurbished unit has been thoroughly inspected, cleaned, and tested to meet our high standards for performance and quality, so you can enjoy the same exceptional brewing experience at a great price.
Brews delicious pour-over style coffee with a bloom cycle in 4 minutes or less
Removable water tank can be placed on the left, right, or back for flexible counter placement
Compact footprint: just 11.5” tall and 7.5” wide to fit almost anywhere
Built to last with premium materials and backed by our two-year warranty

Specifications, dimensions and materials

Materials: BPA-free water tank, silicone water lines, handblown glass carafe, matte finish polymer base with reinforced metal internal structure, stainless steel
Filters: Ratio Four paper filters or Melitta 8-12 cupDimensions (LxWxH): 10.6” x 7.5” x 11.5”
Capacity: Brews up to 22oz
Weight: 12lbs
Electric: 120V, 1200W, 50/60Hz
Maintenance: Carafe and dripper not dishwasher safe.

Compatibility and care

How much does the Ratio Four brew?
The Four makes up to 22 ounces, making it perfect for single-cup brewing or smaller servings.What materials are used in the Ratio Four?
It features a Tritan water tank and polypropylene brew basket, a borosilicate glass carafe, an aluminum internal heating system, and FDA-approved silicone tubing.What filters does the Four use?
The included flat-bottom basket uses our Ratio Four flat-bottom filters or most 8-12 cup flat-bottom filters.
You can also replace the basket with your favorite conical or flat-bottom dripper—even glass or stainless options.Does the Ratio Four keep coffee warm?
The Four’s glass carafe is designed for immediate serving.
For heat retention, you can transfer your brew into a thermal vessel.Is the Ratio Four programmable?
Like all Ratio machines, the Four uses a simple one-button start for an intuitive, manual brewing experience.

Removable water canister.

Filling your water tank just got way easier.
Simply take the removable canister to the sink and fill between 5 and 20 ounces.
If you're after precision and want to weigh the water, put the tank on your scale and fill to your target water volume.

Automated Bloom cycle.

Also called pre-infusion, this initial burst of hot water causes freshly roasted coffee to bubble up in a "bloom." The Four then lets the coffee rest and settle back down for 15 seconds before delivering the remaining hot water, leading to a more complete extraction.

Supports multiple filter styles.

The Ratio Four works with several popular filters.
It ships with a flat filter basket (for use with Melitta or similar filters) that encourages a consistent extraction, but the Hario V60™, Kalita Wave™, and Origami™ all work perfectly as well.

Consistent water temperature.

The Four's powerful and compact heating element ensures the hot water is between 91-95° Celsius / 195-203° Fahrenheit at the shower head, which meets the Specialty Coffee Association standards for brewed coffee.