View Full Version : Centrifugal Juicers Harm Juices? - Myth or Fact?
03-26-2008, 10:26 PM
I ran across an interesting study on the effects of heat/oxidation on juices when using a centrifugal blender vs the slower gear-arm type juicer. It seems to negate the idea that a centrifugal blender does any significant damage to the juice.
STUDY HERE (http://www.discountjuicers.com/juicequality.html)
It’s a little intuitively hard for me to believe that a centrifugal juicer could oxidize the juice (at least enough to harm is significantly) in the few seconds it’s being spun around and filtered. And intuitively, the juice doesn’t come out warm, so I have a hard time believing that’s an issue either.
I’ve heard soooo many times that a centrifugal juicer causes significant damage to juice, but I don’t recall anyone ever saying “and here’s the study to prove it”.
However I'M HEAR TO LEARN. If anyone knows of a scientific study where they actually measured the enzymes/nutrients of juices from a centrifugal juicer - within minutes - and determined that they were significantly damaged, I would like to see it. Otherwise, I wonder if this is just one of those things that gets repeated over and over and is assumed true. What I’m not interested in hearing right now is “I heard”, “so and so said”, “everyone knows”.
If there is more scientific proof of this issue either way, then that would go a long way to verify this one way or the other.
Before you read what I am about to say, please note that I am abundantly aware that what follows is from a distributor of non-centrifugal juicers, so they cannot, in themselves, be considered a 'neutral', unbiased source. However, in this particular instance, they are only referencing an article from a third-party Australian consumer report magazine, the authors of which, presumably, have no vested interest in any particular juicer format. Therefore, make of it what you will:
03-26-2008, 11:28 PM
Thanks, that's the kind of thing I'm looking for.
03-27-2008, 06:45 AM
Dr. Max Gerson (www.gerson.org) did not use centrifugal juicers in his cancer therapy because he believed that the nutrients were changed - for the same reason he didn't want to use blenders like the vitamix as nice as it would be to get the whole food in there.
However, I THINK he allowed centrifugal juicers for patients with much less serious ailments than cancer (ie heart disease, diabetes, etc). So, at least according to that, he thought there was still benefit to the juice, just not enough in the case of someone whose immune system needs total healing.
While I certainly don't enjoy juicing in a Norwalk (which we have because my mom healed cancer 20 years ago on Gerson) the Greenstar is great and really not very much more expensive than a centrifugal when you consider how much more juice you get and how long it will last, etc..
Thanks First Garden for referencing this post. I really have wondered about this as I have a centifugal juicer that I love which is a Breville.:)
01-19-2009, 03:02 PM
Ya know what, folks? I think that caution is a good thing. But sometimes we get a little hyper about it, don't ya think?
Normal juicing harms nothing. Oxidizing can cause spoilage quicker, I think. But actual harm to the juice? Only by extended use in juicing large quanities, where the juice/pulp gets too heated - this is where potential harm comes in. What is it - 118 degrees?
Stringy vegs - kale, celery and also wheatgrass.. these especially will tend to heat up. Low speeds are preferable for these applications.
Centrifugal juicers are really fine machines, if well executed. And if used within their intended design/use & limits, the juices will be wonderful. :)
02-22-2009, 12:26 PM
I have a centrifuge juicer.I too believe we can go way overboard on technicalities and get lost in all the little stuff.
Is my diet,my plan,my way of life BETTER THAN what I could be doing,ingesting,eating,consuming.For sure. So I will not allow myself to get caught up in worry over these small things.
Any person selling their product tells you its the best way.Your equipment or food that works for you is the best way.
02-22-2009, 01:37 PM
Dr. N. Walker explains really well in his books the difference between the two and it has nothing to do with selling an expensive product. I didn't believe him untill I noticed a HUGE difference in the taste.
Now I do only use the Greenstar juicer,-it's worth it.
02-22-2009, 07:22 PM
i had a breville... loved it. i bought a champion... and i was totally shocked at how much more juice i got out of the same amount of produce.
i was used to cutting up X amount of stuff and putting on my juicing plate... taking it over to the juicer and getting X amount of juice.
when i switched... i found that i had to use much less produce to get the same amount of juice... so... for me... my champion has already more than paid for itself in the amount of produce i do not have to use while fasting. :)
that's all i have to add to this lovely conversation :D
02-22-2009, 07:42 PM
My Omega doesnt heat the juice at all.It tastes amazing like any juice I ever have form any juicer.Also I never waste any produce as it is dry when I take it out and i get tons of juice.Then I add some juice back to the pulp and make crackers.No waste.
I may be mistaken but I feel my juicer serves me very well.Plus most of my green juice is made in the blender and nut milk bag strained.
03-02-2009, 11:58 AM
I have a centrifugal juicer and because I'm a lazy person I like, that I can put whole apples and much more other stuff inside.
It could be possible, that the Greener gets more juice out of the fruits, but I like it fast, so, I'm not so interested in cutting small slices and I normally just prepare as much as I want to drink.
So, in my opnion, the centrifugal juicer cannot have a negative influence on the juice.
03-03-2009, 01:49 AM
It's much less work with the green star, tastes better and goes faster too :) Enjoy
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