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My Observations
and Opinion
on Raw Vegetable
Juicing
Introduction
First, let me state that I believe that
raw vegetable juices have powerful nutritive and healing properties, and
my observation is that raw veggie juices are central to almost every effective
diet or system which purports to treat serious chronic disease via dietary
means. Especially for those of us who are eating a raw vegetation and
animal foods diet (RVAF diet), I believe that raw vegetable juice is almost
essential to optimal nutrition and maximal well-being. I am always fascinatd
by the imporvements in health and well-being even among folks who eat a diet
which consists primarly of the Standard American Diet (aka "SAD"; cooked,
highly processed, lots of junk oils and fats, heated dairy), when they add
to their diets at least 3 glasses per day of fresh raw green (along with red
and orange) vegetable juices. As evidence of this, witness the many dozens
of books hitting the market, aimed primarily at Americans who eat rather
conventional SAD diets, which advocate the benefits of vegetable juicing.
Many of the anecdotal stories from that world, or even as told by alternative
medical practioners, are downright amazing.
Donations
and Support
Important -- Please Read!
This educational, public-service website has been totally self-supported
by the author, Vinny Pinto, since it's inception in October 2000. My
expenditures for this site have grown to over $500, not counting my research
or authorship efforts. I have considered banner ads, paid text ads,
and other commercial means to help support this site, but, frankly, all offend
me and would not be in keeping with the spirit of the community I intend to
support. Therfore, I am now actively asking donations to help
me to support this site -- even two dollars helps! If you wish to donate,
you may do so by using your credit card, ATM card, debit card, or transfer
from your bank account, via fully secure means, using either Amazon Honor
System or Paypal . To make a donation, please go to the
Donations and Support page
! All transactions are secure; in all cases, you get to choose the
donation amount!
Thank you very much!
Vinny Pinto, Frederick, Maryland, USA
What Should I Juice?
Never juice fruit -- the resultant juice
is way too high in simple and available sugars, and their absorption in the
gut is no longer mediated by the cell walls of the fruit, since they have
been ruptured by the juicing process. On the other hand, if you must drink
fruit juises, fresh raw fruit juices will be a lot healthier for you than
juices which have pasteurized, processed, and bottled or canned! Having
given the above caveats, I do confess to occasionally juicing a small amount
of organic orange juice as a treat -- perhaps once every few months I may
make about 4 or 5 ounces of organic orange juice in a citrus juicer.
Just as with fruit, be a bit cautious when juicing root evgetables which are
high in simple sugars -- the two best known examples are carrots and beets.
While each of these is a wonderful veggie to juice, and has wonderful effects
upon the body,, you will probably wish to limit the total quantity of these
two veggies to less than 30% by volume of juice,with the reminder greens.
You can increase this quantity if you also consume a bit of fat with your
veggie juice.
For juicing: I recommend you start with the
following:
- 35% celery
- 15% parsley
- 15% cukes or zucchini
- 15% leafy lettuce
- 15% carrots
- 15% beets
- a tiny bit of habanero pepper, if you like it spicy
and hot
Other vegetables you might use:
- green or red cabbage
- any members of the lettuce family
- dandelion or chickweed
- tomatoes
- some of the "Japanese" variants of the cruciferous
family which are green, leafy and mild (the most common American cruciferous
greens are kale and collards, which are a bit strong and very bitter,
and rather medicinal)
The exact formula is not important, it is fine if you
are leave out one thing or substitute something else, and you can also adjust
amounts as well. However, never allow the combo of beets and carrots
to be over 30% (due to their content of simple sugars), and, unless you
know what you are doing (guided by your body or intuition), NEVER use any
of the following (these contain lots of oxalic acid, and can really swell
your throat and mouth):
- spinach
- beet greens
- any part of the rhubarb plant
and do not use much of the following, unless you now
what you are doing (they are rather "medicinal" and strong):
- kale
- collard greens
- mustard greens
- nettles, thistle
The largest single source of degradation in a raw fresh
juice (as well as most other raw foods) is oxidative degradation due to a
family of so-called free radicals known as reactive oxygen species (ROS),
which include peroxide ions, superoxide anions, and other aggressive oxygen
species, incuding O3 and other short-lived oxygen radicals.
It is well known that the degree of exposure during juicing of the juice
to heat and ambient air containing oxygen, particularly tiny bubbles of oxygen
which are finely dispersed (as in repeated grinding, blending or mastication),
can rapidly accellerate the formation of these ROS components, and thus,
rapidly accellerate aging of the juice and its nutrient quality.
Some Guidelines on Juicers
It has long been acknowledged that the method
of juice extraction greatly affects juice quality. As noted above, methods
which involve excessive heating, grinding, or mastication tend to rapidly
accellerate ROS processes, and therefore, degradation. Regarding consumer
juicers the consensus, along with some good anecdotal evidence, seems to
strongly indicate that centrifugal juicers generally yield juice with the
greatest oxidative damage, followed by masticating juicers (such as the Champion
and the crushing stage of some Norwalk juicers), which tend to produce a
juice with significantly less oxidative damage. However, the twin-gear
juicers, such as the Green Star (until recently this was called the Green
Life) and the Angel seem to produce the least heating and least exposure
to oxygen, yielding the highest quality juices. When the current author
switched from a masticating juicer to a Green Life (now named Green Star)
twin-gear juicer in late 2000 at the urging of Aajonus Vonderplanitz and
several long-time RVAFers, he noticed a significant improvement in the quality
of the juice yield compared to the Champion.
A number of persons in the raw foods world
have come up with guidelines for the quailty of each class of juicer, and,
while there is some variance, most seem to agree that:
- the juice from a centrifugal juicer must be consumed
almost immediately after juicing to take advantage of nutrients before serious
oxidative damage can progressively damage nutrients; such oxidation, when
severe, often yields a brownish color in the juice
- the juice from a masticating juicer may be refrigerated
and stored for up to 24 hours, while maintaining an acceptable nutrient quality
- the juice from a twin-gear juicer may be stored
under refrigeration for up to at least three days, while maintaining an acceptable
nutrient quality. Indeed, Aajonus Vonderplanitz reports that he has
commissioned studies which have shown that after 78 hours (3 days and 6
hours) the nutrients in the juice from a Green Life juicer still retained
at least 82% of their original potency.
Therefore, many "serious" devotees of juicing seem to
end up using twin-gear juicers in order to yield higher juice quality and
the ability to juice vegetables in quantity and then store the juice in 8-ounce
or 16-ounce tightly sealed containers (see below) under refrigeration for
a few (3+) days, while still maintaining high nutrient quality. Recently,
a fair number of raw foodists who eat raw vegetable and animal diets (RVAF
diets), including this author, have been adding small amounts of a proprietary
hydride (H-, also known as the H- ion) donor antioxidant (
MegaHydrin™ ), marketed as a nutritional antioxidant,
to the raw juice before storage to decrease oxidative damage over time and
to increase useful storage lifetime of the juice. The H- ion is a
powerful, primitive, primal and primordial antioxidant which has been present
in much raw drinking water and found as well in all raw vegetation and raw
animal foods .
I used a Champion for the past 13 years
until I purchased the Green Life (nw named Green Star) after I went on the
RVAF diet. The quality of juice from a Green Life is far better than
from a Champion, and further, the Champions tend to bind up with parsley
and celery -- a real pain in the butt! However, the quality of the juice
from a Champions is admittedly far better than that from most centrifugal
juicers, due to lower oxidative damage from heating and aeration.
The Green Star (formerly the Green Life)
lists for about $500, but the "street price", via large vendors who sell
juicers on the Web, is about $380 plus shipping. Do NOT let a vendor
talk you into buying a "Green Power" (by the same company) rather than the
Green Life. Green Power is not the same; not as sturdy, although
it costs a bit more.
S
ome Guidelines on Juice Storage
Based upon the trials and studies
described on other pages (see links on this page) on this site, and upon
general current knowledge, here are recommendations for storing fresh raw
vegetable juice beyond the time of juicing:
- When juicing, use a twin-gear juicer only, or a
twin-gear juicer followed by a Norwalk press only.
- When juicing for storage, try to use only fresh
organic vegetables. Studies show that these usually start out with
higher levels of antioxidants, as well as higher levels of minerals and
other nutrients..
- Immediately after juicing, juice must be decanted
into small bottles and then immediately refrigerated. If storing more
than 4 bottles in the refrigerator at once, consider placing a few refrigerant
gel packs from the freezer near them to speed the chilling process.
- The juice must be stored in thick-walled plastic
HDPE bottles or glass bottles, each with tight-fitting, air-tight, screw-cap
seals.
- The best plastic storage containers seem to be widemouth
8 and 16 ounce Nalgene containers (they usually are milky in color) with
screw caps (usually blue) which fit tightly. These containers are
sold in sporting goods stores for carrying water for camping; these containers
have thick HDPE walls, and the screw caps fit tightly, forming an airtight
seal.
- The best glass storage containers seem to be those
usually recommended by Aajonus Vonderplanitz -- 8-ounce and 16-ounce glass
"jelly" canning jars made by Ball, with tight-fitting metal screw lids.
- Thin-wall plastic containers such as those in which
fruit smoothies are sold, or the the thin plastic jugs in which milk is sold,
are unuseable due to the thin plastic walls, which allow too-rapid an incursion
of oxygen as well as too-rapid an escape of the primary antioxidants (H-
ions and the H2 breakdown products), as well as the fact that the caps allow
some air incursion as well.
- The bottles must be filled all the way to the top,
leaving little or no airspace at top.
- The size of the bottle or container must be small
enough that once it is opened and some contents used, the remainder of
the contents must be used within 8 hours to prevent oxidative damage.
Thus, for most users, 8 ounce or 16 ounce containers or bottles will be needed.
Do not use large containers, as the airspace above the juice, as the container
is slowly emptied over time, will allow rapid degradation of juice due
to presence of oxygen in the air as well as other factors.
- Again, it bears repeating: DO NOT use thin-walled
containers such as those in which milk is sold in stores, or in which carrot
juice and smoothies are sold in natural foods stores. DO NOT use large
containers. DO NOT leave airspace over juice of more than 1 to 3 mm.
- If you will be storing the juice for 3.5 days or
less (and you started with organic vegetables and used a twin-gear juicer),
then it appears that you can safely store the juice as-is, without any added
antioxidants, although it appears the addition of
MegaHydrin™ as an antioxidant will help further inprove
quality.
- If you plan on storing the juice for longer than
3.5 days, or have used non-organic vegetables, or wish even fresher juice
quality, then this author recommends use of
MegaHydrin™ as an antioxidant at the rate of 250 mg
(1 capsule equiv.) per gallon, well-mixed into the bulk container or pitcher
before decanting into bottles. This should extend the useful life of
the juice to at least 7 days from time of juicing.
For more information on raw juice storage, including
use of H-ion donor antioxidants to increase storage time, please see these
on-site pages:
How Long Will Fresh Raw Vegetable
Juice Keep its Nutritional Value Under Refrigeration?
This set of articles includes recomendations on which
juicer to use, juicing tips, storage, research results as well as ancedotal
findings regarding maximal storage time of fresh raw juices in the refrigerator,
and the use of unique antioxidants to lengthen useful life of nutrients
in raw juice.
Summary In Plain English
-- Summarizes some current recommendations, along with results and meaning
of the storage time (versus oxidative damage) study below and some previous
studies on raw juice storage
Research Study
-- A Measure of Oxidative Degradation Over Time of High-quality Fresh
Raw Vegetable Juice Stored Under Refrigeration: A Comparison of Refrigerated
Stored Untreated Raw Juice with Raw Juice Treated with a Hydride (H-)-donor
Antioxidant, both measured across time
Donations and Support
Important -- Please Read!
This educational, public-service website has been totally self-supported
by the author, Vinny Pinto, since it's inception in October 2000. My
expenditures for this site have grown to over $500, not counting my research
or authorship efforts. I have considered banner ads, paid text ads,
and other commercial means to help support this site, but, frankly, all
offend me and would not be in keeping with the spirit of the community I
intend to support. Therfore, I am now actively asking donations
to help me to support this site -- even two dollars helps! If you
wish to donate, you may do so by using your credit card, ATM card, debit
card, or transfer from your bank account, via fully secure means, using
either Amazon Honor System or Paypal . To make a donation, please
go to the Donations and Support page
! All transactions are secure; in all cases, you get to choose the
donation amount!
Thank you very much!
Vinny Pinto, Frederick, Maryland, USA
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