Tribest Greenstar Pro Review

This is the best-extracting machine on the site and the wrong purchase for almost everybody reading about it. Two interlocking gears crushing produce between them is mechanically more complete than any single auger. It is also 27 lb, has a 1.5 in chute, and the gear teeth are the hardest geometry in home juicing to clean.

What Tribest states

• 110 RPM.
• 200 W, 120 V, 60 Hz.
• A 1.5 in chute opening -- the narrowest in our registry.
• 27 lb, 18.6 in W x 6.8 in D x 12.4 in H.
• A 12-year warranty for household use.
• Twin interlocking stainless gears with an impeller-style cold press action.

What trituration does differently

A single auger crushes produce against a perforated screen -- pressure from one side, against a surface. Twin gears mesh with a very small gap between them, so material is crushed and sheared from both sides simultaneously.

That is a more complete mechanical extraction, and it shows most on hard greens and wheatgrass -- short, fine, almost entirely fiber, with liquid bound inside. Those are the produce items that defeat vertical slow juicers, and they are what twin gear machines exist for.

At 110 RPM it is faster than most single-auger verticals and still two orders of magnitude slower than any centrifugal machine. See twin gear vs masticating for the comparison in full.

What owning it is actually like

Tribest publishes the numbers that tell you, which is to its credit:

• 27 lb. It is not going in a cupboard. It lives where you put it, permanently.
• 18.6 in wide. Comparable to Omega's horizontals, so plan a substantial stretch of worktop.
• A 1.5 in chute. Everything is chopped first, every single time. Whole apples are out of the question.
• Two gears, a housing, screens and an outlet to wash. Gear teeth hold fiber in a way a smooth screen does not, and the supplied brush is the only practical way in.
• 12 years of household warranty. Tribest expects it to last, and it does.

The cleanup is the decisive factor, and it is worst with exactly the produce you bought the machine for. Wheatgrass fiber is fine enough to lodge in every tooth. Rinse immediately -- dried grass fiber in gear teeth is a genuinely tedious job.

Who this is for

A short, honest list. Somebody who juices wheatgrass or very hard greens daily and has found single-auger machines leave too much behind. Somebody juicing in volume, where incremental extraction compounds into real produce savings. Somebody who has owned a cold press machine for years, knows exactly what frustrates them, and is deliberately trading convenience for extraction.

Who should skip it

Anybody buying their first juicer, without exception. A 27 lb machine with a 1.5 in chute and the heaviest cleanup in the category is not where anyone should start, however good the extraction is. Start at best juicers for beginners.

Also anybody for whom cleanup matters at all, anybody with limited counter space, and anybody juicing mainly soft or watery produce -- where this machine's advantage largely disappears and its inconvenience does not.

If what you actually want is thorough extraction in a livable machine, Omega's NC900HDC is the answer: five adjustable pressure settings, 80 RPM, a 15-year warranty, and it handles wheatgrass.

Where it appears on this site

The Greenstar Pro is our top pick on twin gear juicers, highest-yield juicers and juicers for wheatgrass, and appears on leafy greens, kale and spinach and ginger.

The picks in full

1. Most thorough extraction mechanism

Tribest Greenstar Pro

Tribest GSE-5050 series · $400+ · Our score 7.3/10

Tribest states 110 RPM, 200 W, a 1.5 in chute opening, 27 lb, 18.6 x 6.8 x 12.4 in and a 12-year household warranty, with two interlocking stainless gears doing the crushing. Mechanically this is the most complete extraction available in a home kitchen. It also has the heaviest cleanup of anything we cover, and we would not recommend it to a first-time buyer under any circumstances.

Yield

Not availableNot sourced

Pulp

Not availableNot sourced

Cleanup time

Not available - no published cleanup time in minutesNot sourced

Speed

Tribest states 110 RPM, 200 WManufacturer claim: Tribest · checked 2026-10-02

What works

• Twin-gear trituration is the most thorough mechanism in home juicing
• Handles wheatgrass and hard greens that defeat verticals
• 12-year household warranty

What does not

• 27 lb and 18.6 in wide
• 1.5 in chute, so everything gets chopped first
• The most parts, and the most awkward parts, to clean of anything here

Skip this if: You are buying your first juicer. This is a 27 lb specialist machine with a 1.5 in chute and the heaviest cleanup of anything we cover.

Representative photo. We have no manufacturer image library, so this is a licensed stock photo of the category, not a photo of this unit.

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• Yield10/10
• Pulp9/10
• Cleanup4/10
• Value6/10
• Quiet7/10

Read the full Tribest Greenstar Pro review