What Is a Masticating Juicer? | The Slow Squeeze Explained

A masticating juicer is a slow juicer that chews produce with a low-speed auger to crush and press out juice.

If you’ve shopped for a juicer, you’ve seen the term and wondered what separates a masticating juicer from the cheaper spinning options. The difference comes down to one thing: the mechanism. Knowing how a masticating juicer works tells you what it does best and where it disappoints, so you can decide if the higher price is worth it for your kitchen.

How a Masticating Juicer Works

A masticating juicer runs on a slow-turning auger, a screw-like part that crushes and presses produce against a fine screen. You feed fruit or vegetables down the chute, the auger grinds them, and the juice passes through the screen while the pulp exits through a separate outlet. Breville’s guide to the two main juicer types calls this a single-step chewing and pressing process.

The name comes from “mastication,” which means chewing. Slow rotation mimics the chewing motion rather than rapid shredding, which is precisely why the results differ from centrifugal models.

Why the Slow Speed Matters

Masticating juicers typically run at 40 to 100 rpm, while centrifugal juicers spin at thousands of revolutions per minute. That low speed is the whole point. Less heat and less air get introduced during juicing, which means less foam and oxidation in your glass. The slow crush also produces more juice from leafy greens, which fast spinning blades struggle to extract.

Those traits make masticating juicers the clear pick for fragile produce and fibrous vegetables. Kale, spinach, and wheatgrass are the standout use cases, and the slow auger powers through dense ingredients that leave centrifugal machines struggling. Hurom, a major maker of these machines, highlights the low noise, minimal oxidation, and leafy green performance in its own breakdown of the category.

Before you commit, see how the best budget models compare in our tested budget juicer roundup.

Masticating vs. Centrifugal Juicers

The practical differences show up in three places: yield, texture, and cleanup.

Yield and Texture

Masticating juicers extract more juice from greens and soft produce, but they take longer to do it. You also get pulpy, slightly foamy juice with a thicker mouthfeel than the clear liquid a centrifugal juicer produces. If you want a clean, crisp glass of juice, that pulpy texture takes adjustment.

Speed and Prep

Centrifugal juicers finish a batch in seconds and handle whole apples and carrots without much chopping. Masticating juicers need produce cut into smaller pieces, and feeding takes patience. The slow grind releases more juice and keeps more of it in your glass, but it trades away convenience.

What “Cold Press” Actually Means

Here’s where buyers get confused. “Cold press” is a broader term that can describe the masticating auger method, but it also covers hydraulic press machines. A masticating juicer is a one-step auger-and-screen process, not the commercial two-stage pressing you’d find in high-end juice bars. If a label says “cold press” and uses an auger, it’s masticating. If it uses a hydraulic press, it’s a different animal entirely.

Storage, Claims, and What to Expect

Two claims follow masticating juicers everywhere, and both deserve a skeptical eye.

Nutrient retention is the big one. Manufacturers repeat that slow juicing preserves “more nutrients” and “enzymes,” but there is no widely accepted scientific consensus on exact amounts. The honest read: less heat and oxidation logically protect heat-sensitive nutrients better than high-speed blades, but treat specific percentage claims as marketing until science pins them down.

Shelf life claims vary too. Some guides say juice keeps for 48 to 72 hours in the fridge, while others suggest a day or two. Both are informal estimates, not storage guidance, and both assume a sealed container and fridge temperatures. Play it safe and drink your juice within two days.

The tradeoff is clear: masticating juicers cost more, take longer, and demand more prep, but they get more out of leafy greens with less foam. Serious green-juice drinkers usually find the extra effort worth it. If you mainly juice oranges and apples on weekday mornings, a centrifugal model gets you out the door faster.

Serious Eats breaks down the comparison in practical detail, covering the chewing mechanism, juice thickness, and the rpm differences in a side-by-side analysis.