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The Fundamentals Four Bundle brings together the key pieces for a clean, consistent daily brew. The Four S2 offers a precise, scaled-down brew cycle, while the paper filters give you a bright, clarified cup every time. With Halefresh descaler included to keep everything running at its best, it’s a straightforward setup built for steady, reliable ritual.
Meet Ratio Four: the first affordable and beautiful “half batch” pour over coffee machine. The Four is our smallest brewer yet, an agile, sleek machine that puts out between 5 and 20 ounces of coffee per batch, enough for one to two reasonably sized cups, or one big travel mug.
Brews with a bloom cycle in about 4 minutes or less.
Removable water tank can be positioned on the left, the right, or behind.
Small enough to fit on any countertop at just 11.5" tall and 7.5" wide.
Built to last, and backed by a five-year warranty.
MATERIALS & DETAILS
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 cup
Dimensions(LxWxH):
10.6” x 7.5” x 11.5”
Weight:
12lbs
Electric:
120V, 1200W, 50/60Hz
FREQUENTLY ASKED QUESTIONS
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?
No. Like all Ratio machines, the Four uses a simple one-button start for an intuitive, manual brewing experience.
These paper filters are designed to properly extract the full potential of your coffee on the Ratio Four. They are made of laboratory-grade paper for consistently precise flow-through performance. Made of 100% virgin wood pulp. 100 count.