Thursday, December 5, 2013

Epic Comparison: Cold Press vs Centrifugal Juicer

As a progressive consumer, I am not really satisfied with almost anything I buy nowadays. And yes, the term "progressive consumer" doesn't really mean anything in the last sentence. Let's move on. Instant regret is the first thing I experience almost every time after coming home with the new thing and after trying it out. But still, it feels good for about 7 seconds immediately after buying it, so it is worth the weeks of inner conflicts which strike later.

I was happy with my centrifugal juicer for a while (Space Petunia Review defines "happy" as an emotional state which does not make a person blow his/hers head off with a moderately-sized hand cannon, but gives enough room in a definition in a way that a person is allowed to accidentally chop his/hers head off with any available kitchen appliance and/or power tool). Then I realized that with every juice I make, I am throwing away giant piles of pulp, which is still moist and full of life. Of course, that was just an excuse to put away the centrifugal juicer, and get rid of the responsibility of cleaning the thing after every use.

Centrifugal Juicer vs Cold Press Juicer Mortal Combat

Epic Comparison: Cold Press vs Centrifugal Juicer

And then, as a certified progressive consumer (the word still doesn't mean anything, nor the construct that goes with it), we bought this new miracle of China: Cold Press Juicer. The advertisements claim that it could squeeze about 30% more juice than a conventional centrifugal juicer. Not believing a damn thing, I decided to put that claim to a test.

For this comparison, identical ingredients were used in both juicers:

  • 2 apples 
  • 2 carrots
  • several leaves of kale

Ingredients were from the same batch, with nearly identical sizes, age, looks, and hair colour.

Several photos below show processing of the ingredients using the centrifugal juicer, while identical process is covered in the Vivax SJ-150 Slow Juicer Review. I've accidentally mixed up the order of the ingredients, but final result is the thing that matters. And to emphasize that fact, I will mention it again in the next sentence.

Results from both juicers are illustrated at the end of this epic battle, which is probably the most important information on the Internet itself. But first, look, nice pictures:

Left: Centrifugal Mesh Strainer with blades, operates on gazillion RPMs
Right: Cold Press Auger with crushing rib, operates on < 100 RPMs 

First Ingredient: A medium-sized apple

First ingredient (apple) squeezing results for centrifugal juicer

Second ingredient: Fairly-sized carrot

Second ingredient squeezing results for centrifugal juicer

Third Ingredient: A somewhat-larger-than-medium-sized apple

Third ingredient squeezing results for centrifugal juicer

Fourth ingredient: Another carrot, with size perspective

Fourth ingredient squeezing results for centrifugal juicer

Fifth ingredient: Kale

Fifth ingredient (kale): squeezing results for centrifugal juicer
(that would be... about 2 drops altogether)

Pulp in centrifugal juicer. Pulp everywhere.

Centrifuge vs Cold Press: Pulp Comparison

Resulting pulp for CENTRIFUGAL JUICER 

Resulting pulp for COLD PRESS JUICER

Two pictures above try to illustrate the difference between resulting pulp from centrifugal and cold press juicers, and they do so badly. If you really concentrate and ignore the photo zoom differences, you should notice that resulting pulp stack from cold press juicer is significantly smaller than the pulp hill from centrifugal juicer. Also, the pulp from centrifugal juicer was significantly soggier (more damp/wet).

Resulting pulp for CENTRIFUGAL JUICER

Centrifuge vs Cold Press: Juice Quality and Quantity

Resulting juice quantity

Resulting juice quantity

The last two pictures illustrate the quantity and color differences between resulting juices from cold press and centrifuge. It clearly shows that cold press juicer squeezes more juice. Colour difference is due to a fact that centrifuge juicer couldn't handle leafy ingredient (kale).

Most important differences between centrifugal and cold press juicers are listed in the following table.

Cold Press Juicer Centrifugal Juicer
Considerably more juice Considerably less juice
Leafy greens are squeezed successfully Leafy greens are ignored completely
Denser, richer juice Thinner, watery juice
Slower process Faster process
Dry and compressed pulp Soggy pulp
Less pulp More pulp
More physical labor required
(cut in smaller pieces, cut through fibres)
No need for special ingredient preparation
(depends on the size of the feeding tube)
You need to clean it after use :( You need to clean it after use :(
Quieter Louder

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