Cold Press vs Slow Juicer: What Is the Difference?

On this page (7 sections)

1. What is the difference between a cold press and a slow juicer?
2. Why do brands use so many names for one design?
3. How is a slow juicer built compared with a centrifugal juicer?
4. Which foods does each type handle best?
5. What does the difference mean for foam and oxidation?
6. What changes between horizontal and vertical slow juicers?
7. Which type suits your kitchen and routine?

There is no real difference: cold press and slow juicer describe the same machines. Both use a low-speed auger to crush and squeeze produce instead of a fast spinning blade.

The terms pile up because each brand picks the label that sounds best on its box. Once you know they mean the same design, the useful comparison is between slow juicers and the other type in the store, the centrifugal juicer.

This guide sorts the labels, then shows what actually changes between machines.

What is the difference between a cold press and a slow juicer?

None in the machine itself; only the marketing changes. A cold press juicer and a slow juicer both turn an auger at low speed, so the produce is crushed and pressed rather than shredded at high speed.

The "cold" label comes from the low heat the process adds. A slow auger moves at 43 to 50 RPM on the models here, so friction stays low and the juice stays cool.

"Slow juicer" simply names the same low speed from a different angle.

"Cold press" borrows language from cold-pressed oil and coffee. "Masticating" describes the chewing action of the auger.

Three words, one design: a horizontal or vertical auger that grinds produce against a fine screen and lets the juice drain away from the pulp. If you have read our explainer on what a cold press juicer is, this is the short version of it.

Why do brands use so many names for one design?

Brands pick the label that sells the feature they want to highlight. Cold press sells freshness, slow sells gentleness, and masticating sells extraction.

The Ninja NeverClog JC151 is sold as a cold press juicer, and Ninja describes its 150-watt high-torque motor turning the auger at low speed. The Nama J2 is called a cold press juicer too, with a 200-watt motor at 50 RPM.

Omega sells the 43 RPM model as a slow masticating juicer.

All three do the same job. Ninja stresses "cold press" in its name because the term is searched heavily.

Omega stresses "slow" because its pitch is gentle squeezing. The terms tell you nothing about quality; the specs do.

A wide hopper, a strong motor and a good screen matter more than the word on the front.

How is a slow juicer built compared with a centrifugal juicer?

A slow juicer crushes with an auger and a screen; a centrifugal juicer shreds with a fast spinning basket. That single mechanical difference drives most of the trade-offs buyers notice.

A centrifugal model spins a grated basket at high speed. Juice flies through the mesh by force and pulp collects in a separate bin.

It is fast and usually cheaper, but the speed whips air into the juice and creates foam.

A cold press model turns slowly. Produce is crushed, then squeezed against a stainless steel screen, and the juice drips out.

Less air means less foam and less oxidation. The price is time: a slow juicer takes longer per glass.

Our full cold press juicer vs centrifugal comparison covers the speed and cleanup differences in detail.

Which foods does each type handle best?

Slow juicers win on leafy greens, wheatgrass, ginger and soft fruit; centrifugal juicers are quicker with hard roots and apples. The auger's crush-and-press action gets more from light, fibrous produce.

Leafy greens are the clearest case. A fast basket tends to throw wet leaves against the mesh without pressing them, so kale and spinach come out drier.

A slow auger grinds them into the screen and squeezes out more liquid. Ginger and turmeric also press well at low speed.

Hard carrots and apples juice fine in either type, though a centrifugal machine gets through them faster. Soft fruits like berries and citrus are gentler in a slow juicer, which won't froth them as much.

If you plan to juice nuts or make sorbet, check the model's recommended uses. The Nama J2 lists juice, sauce, smoothies and sorbet as its uses.

Most centrifugal machines are juice-only.

What does the difference mean for foam and oxidation?

Low speed adds less air, so cold press juice tends to foam less and hold its color longer. Oxidation is the reason many people pay more for an auger machine.

When juice is exposed to air, enzymes react and the color dulls. A centrifugal basket flings juice through the air in a thin spray, which mixes in oxygen.

A slow auger keeps the juice in a tighter stream and squeezes rather than sprays.

The Omega VSJ843QS runs at 43 RPM, and Omega says the slow speed reduces heat buildup and delays oxidation. Ninja says its low-speed auger minimizes clogging and foam.

Those are maker claims, but the mechanics line up with them.

The practical effect: green juice from a slow juicer often looks brighter an hour later. If you juice in batches for the week, that matters.

If you drink it within minutes, the gap is smaller.

What changes between horizontal and vertical slow juicers?

Horizontal models usually feed better and clean faster; vertical models take less counter space. Both are cold press machines, so the label doesn't tell you the layout.

A horizontal slow juicer lays the auger on its side. Gravity helps feed produce, and the parts often come apart in fewer pieces.

They tend to be wider and heavier on the counter.

A vertical slow juicer stands the auger upright. The footprint shrinks, which suits small kitchens.

The Omega VSJ843QS is a compact vertical model at 15.67 in wide and 11.5 lb. It uses a three-stage auger and automatic pulp ejection to keep juicing without stopping to empty a bin.

The Nama J2 is also a vertical machine, at 9.8 in wide and 12.1 lb, but it adds a self-feeding hopper you load all at once. So "vertical" covers both a simple compact machine and a hands-free one.

Compare layouts by how you plan to feed and clean, not by the word on the box.

Which type suits your kitchen and routine?

Pick a slow juicer if you juice greens and want clearer juice; pick centrifugal if speed and budget come first. The right call depends on what you drink and how often.

A slow juicer suits daily green juice, wheatgrass and ginger shots. It also suits anyone who wants to batch juice and keep it for a few days.

It costs more and takes longer per glass, and the feed chute on compact models is narrow enough that you'll cut produce into smaller pieces.

A centrifugal juicer suits big weekend batches of apples and carrots, and anyone who wants juice fast without a big spend. It foams more and needs a quick skim.

For a closer look at what to weigh before buying a slow machine, read how to choose a cold press juicer. And if you're deciding between pressing and blending, our cold press juicer vs blender guide explains why the two make different drinks.

Which slow juicer suits small kitchens?

The Omega VSJ843QS fits where counter space is tight. It's 15.67 in wide and 11.5 lb, with a 150-watt motor turning a three-stage auger at 43 RPM.

Omega says the dual-edge auger has a tighter fit to strain more juice and break down fiber. A no-drip tap at the spout lets you close the flow to mix juice or make nut milks without a mess.

It's dishwasher safe for the care routine, so cleanup stays simple.

Which slow juicer suits busy mornings?

The Nama J2 cuts the feeding step. Its wide hopper takes a whole recipe at once, and Nama says it chops and juices the produce for you, so you can walk away while it works.

The 200-watt motor runs at 50 RPM and Nama backs it with a 15-year warranty. Parts release quickly and a cleaning brush is included.

It's the priciest of the three and the tallest at 17.7 in, so check the space under your cabinets.

Which slow juicer is the easiest first buy?

The Ninja NeverClog JC151 keeps the slow auger simple. Its 150-watt high-torque motor drives the auger at low speed, and two one-touch programs, Start/Stop and Reverse, handle the run.

Two interchangeable pulp filters let you pick Less Pulp or Lots of Pulp. A 24 oz juice jug and 36 oz pulp container are included, along with an Inspiration Guide of 15 recipes.

All juice-contact parts are dishwasher safe. The compact body is 7.15 in wide and 7.9 lb.

Frequently asked questions

Is a cold press juicer the same as a slow juicer?

Yes. Cold press, slow juicer and masticating juicer all name the same design: a low-speed auger that crushes produce and presses the juice through a screen.

Brands choose whichever term they think sounds better.

Which juicer extracts more juice, cold press or centrifugal?

Cold press machines generally leave less pulp in the glass and squeeze more from leafy greens, though the gap varies by model. Centrifugal juicers are faster and cheaper but push more air and foam into the juice.

Why do some slow juicers cost more than others?

Price tracks motor size, hopper width, pulp control, build materials and warranty. A hands-free wide hopper with a long warranty costs more than a compact single-purpose model with a narrow feed chute.

Do I need a cold press juicer for leafy greens?

It helps. A slow auger crushes kale and spinach against a screen rather than flinging them against a fast basket, so more of the leaf ends up in the glass.

A blender also handles greens but makes a thicker drink, not clear juice.