How does a twin gear juicer work?

Twin gear juicers, also known as triturating juicers, are one of the most efficient types of juicers available today. They work by using a pair of gears to grind and press produce to extract the maximum amount of juice. In this article, we’ll take an in-depth look at how twin gear juicers function and their key features.


Juicing has become increasingly popular over the years as more people discover the health benefits of consuming fresh, raw fruit and vegetable juices. Drinking juices floods your body with vitamins, minerals, enzymes, and phytonutrients that boost energy levels, strengthen the immune system, and promote overall wellbeing.

Twin gear juicers are designed to be superior juice extractors that can handle both soft and hard produce. The dual gears mimic how human teeth chew, crushing plant fibers to squeeze out every last drop of juice. Twin gears provide more torque than a single auger, allowing them to juice leafy greens like kale and spinach as well as grasses like wheatgrass.

How Twin Gear Juicers Work

The twin gears are the heart of these machines and what makes them unique. Here’s an overview of the juicing process in a twin gear juicer:

  1. Produce is dropped into the feeding chute.
  2. It falls into the pocket between the two stainless steel gears that are rotating inward toward each other.
  3. The gears grab onto the produce and shred it, separating juice from the pulp.
  4. The pulp gets continually compressed as it moves through the gears.
  5. The bone-dry pulp is ejected out of one side.
  6. The juice flows out of small holes in the bottom casing.

The twin gears usually contain specialized blunt teeth that grind the produce into very small particles, helping to maximize the juice yield. The tighter the fit between the gears, the drier the pulp will be after extraction.

Types of Twin Gear Juicers

There are two main types of twin gear juicers: horizontal and vertical. Here’s a brief overview:

Horizontal Twin Gear

– Gears sit horizontally side-by-side
– Motor is offset to the side

– Takes up more counter space
– Include brands like Green Star Elite, Tribest Greenstar

Vertical Twin Gear

– Gears arranged vertically on top of each other

– Motor sits beneath gears
– Smaller footprint
– Include Super Angel Juicers, Tribest Solostar

Key Features and Benefits

There are several notable features that set twin gear juicers apart:

Low Speed Operation

Twin gears operate at a very low rotational speed, usually around 80-120 RPM. This slow speed prevents the gears from generating heat and oxidizing the juices, keeping all the enzymes and nutrients intact.

Powerful Extraction

The dual gears provide more squeezing force than single gear or centrifugal juicers. This allows twin gears to thoroughly chew up and crush produce to yield nutrient-rich juice. The dry pulp is a sign of an efficient juicing process.

Versatile with Produce

Whether it’s hard vegetables or delicate greens and herbs, twin gears can juice just about any type of produce. The versatility makes it easy to create diverse juices exactly how you want them.

Juices Leafy Greens

Thanks to the tight fit between the twin gears, these juicers can effectively juice leafy greens like spinach, kale, cabbage, parsley, and wheatgrass. Centrifugal juicers tend to struggle with greens.

Minimal Oxidation

The enclosed juicing system and low speed operation prevents oxygen from getting mixed into the juice. Less oxidation allows the juices to be stored for longer.

Easy to Clean

Twin gear juicers are designed to be taken apart and reassembled quickly for cleaning. The components are dishwasher safe on the top rack.

Twin Gear Juicer Brand Comparison

There are a few notable brands that make twin gear juicers. Here’s a brief overview of some top options:

Brand Model Type Key Features
Tribest Greenstar Elite Horizontal Bio-ceramic magnetic twin gears, 12 year warranty
Tribest Solostar 4 Vertical Stainless steel twin gears, portable size
Super Angel Premium Deluxe Vertical All stainless steel, 10 year warranty
Kuvings Whole Slow Juicer Vertical 3 inch wide gears, 10 year warranty

Pros and Cons of Twin Gear Juicers

Here’s a quick look at some of the key pros and cons of twin gear juicing machines:


  • Very high juice yields
  • Dry pulp signifying efficiency
  • Powerful motor can juice all produce
  • Minimal oxidation and foaming
  • Juice can be stored for longer
  • Easy to clean and assemble


  • Higher initial cost
  • Larger size than centrifugal juicers
  • Gears may need replacement after prolonged use
  • Not ideal for juicing high volumes
  • Require more prep time upfront

How to Get the Most out of a Twin Gear Juicer

Follow these tips and guidelines when using a twin gear juicing machine:

  • Alternate feeding different types of produce. For example, alternate leafy greens with hard veggies and fruits.
  • Chop produce into smaller pieces to fit into the chute easily.
  • Do not overstuff the chute – let the gears grip each piece.
  • Use a plunger to press produce down but do not force it.
  • Rinse gears under water while running between produce types.
  • Disassemble and clean machine thoroughly after each use.
  • Store juice in airtight container and drink within 24-48 hours.

Types of Produce to Juice

One benefit of twin gear juicers is their versatility for juicing all types of fruits and vegetables. Here are some top choices:


  • Apples
  • Berries – strawberries, blueberries, raspberries
  • Citrus – oranges, grapefruit, lemons, limes
  • Grapes
  • Melons – cantaloupe, honeydew, watermelon
  • Mangos
  • Pears
  • Pineapple
  • Pomegranate


  • Beets
  • Carrots
  • Celery
  • Cucumber
  • Ginger
  • Kale
  • Lettuce – romaine, green leaf, red leaf, butter lettuce
  • Spinach
  • Sweet potato
  • Tomatoes
  • Wheatgrass
  • Zucchini


  • Basil
  • Cilantro
  • Dill
  • Mint
  • Parsley
  • Thyme


With their dual gears and slow grinding action, twin gear juicers are exceptionally efficient at extracting juice and retaining nutrients. While the price tag is higher, a twin gear model is one of the best investments you can make if you’re serious about juicing.

When used properly and kept clean, a twin gear juicer can provide years of high-performance juicing to help you meet your health goals. Look for trusted brands like Tribest, Super Angel, and Kuvings.

Experiment with all kinds of fruits, vegetables, leafy greens, and herbs to take advantage of the juice extraction capabilities. Drink your juices fresh and enjoy all the natural vitamins, minerals, and other beneficial plant compounds.

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