A centrifugal juicer chops up the fruit or vegetable with a flat cutting blade (much like a blender). It simultaneously spins the produce at a very high speed (of about 3,000 to 16,000 RPMs) to separate the juice from the pulp.
A centrifugal juicer can be noisy as the motor spins at a very high-speed. The high-speed spinning causes exchange of +ve and -ve ions that results in oxidation which destroys enzymes.
The high-speed blade chopping does not penetrate the produce deeply enough to extract all the nutrients of the juices. The juices produced has plenty of foam because the high-speed spinning traps more air to cause the froth.
Its not effective for juicing leafy vegetables, wheatgrass and herbs. A little trick I give clients is to put greens and a fruit through the juicer together, it helps get more of the green juice for you.
The pulp ejected is still wet resulting in low juice yield when compared to the masticating or triturating juicers. Extracted juice has to be consumed right away and cannot be stored for any length of time due to rapid oxidation. You need to drink within 6 to 24 hours if even.
Price Range: $100-300
There are 3 different kinds of Masticating Juicers:
1) Single gear or auger Juicers
Uses a "masticating" method of chewing or grinding to a pulp. Because of this grinding motion, these types of juicers excel at juicing harder fruits and veggies that centrifugal juicers would often have trouble with. A single-gear drives the produce and squeezes them through a stainless steel screen. This action does not disrupt the cellular structure of the fruits and vegetables, therefore, preserving the precious enzymes and nutrients that are closest to its natural form. Single Gear juicers grind at slow speed, which gives minimal aeration of the fruits and veggies. Aeration is the introduction of excess air in the final product. Juices made can be stored in the refrigerator for up to 48-72 hours. Excess Air in your juices causes oxidation and breakdown of the nutritious enzymes and anti-oxidants.
There are many companies that provide these types of juicers, the most well known company that offers many different kinds of single gear juicers is Omega. But you also have companies like Breville, Hurom, Semak, Santos and many others.
Price Range: $300-600
2) Twin gear or auger juicers
Uses a triturating method of rubbing, crushing, grinding & pounding the produce finely to extract the juice. This action tears open the produce’s cell membranes and releases its deep-seated nutrients and enzymes. It also breaks up more of the phytochemical from the produce, resulting in a superior juice quality with preserved enzymes and nutrients due to its breakthrough technology using far-infrared waves and magnetic fields that enhance the juice structure, making it more stable to last longer and bio-available.
Twin gear juice extractors operate at much lower speed (80-110 RPM) than centrifugal juicers or even single gear-masticating juicers ensuring that less air gets trapped into the juice. This slows down the oxidation of nutrients to a minimum level. This slow juicing process increases the storage life of the juice without it loosing its health benefits and freshness. The benefit of a low RPM is that less heat is generated, protecting the nutrients from destruction due to overheating. Juice made with a twin-gear juicing machine can be stored in the refrigerator for up to 48-72 hours staying fresh and loosing only a minimum of its vitamin and other nutrient content.
Due to the high-quality of materials used and the added technical features, twin-gear juice extractors are more expensive than centrifugal type machines or single gear models, but they also have the most benefits and advantages regarding nutritional value of the juice made with these appliances.
This class of juicers only has three companies that provide them. You have Green star, Kempo and of course how can one forget the Angel Juicers.
Price Range: $600-1800
3) Cold pressed Hydraulic juicer
A hydraulic press Juicer has a 2 step process. First a Cutter for completely cutting and grinding and a Hydraulic Press which extracts the nutrients from the pulp provided by the Cutter. The only one available for consumer use is called the Norwalk Juicer. There are many that are commercially used that are priced at 20k and up, I cant see a lot of households owning one but you never know.
With the Norwalk the ingredients first pass through a triturating mechanism or grinder on one side of the machine to produce a wet pulp mixture that is collected in a fine cloth bag ready for pressing. This mixture is then pressed in an electric hydraulic press on the other side of the machine. With the Norwalk themselves this pressing has to be done TWICE, just to produce one pint of vegetable juice
Price Range: $3000+
The vast differences between all the juicers can be seen, felt and detected when you juice and drink from them. But I am going to say this the best juicer you can own is the one that you are going to use. So buy the one you can afford and start juicing. I started juicing 10 years ago using a Jack Lalanne centrifugal Juicer. Any fresh raw juice you make at home is better than the pressurized (hpp) and pasteurized juices sold in stores.
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