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EFFICIENT CANNING
OF FRUIT JUICES
Most of you who have made your own cider and other
juices know that straining the raw product to obtain a pure juice
can be time consuming and laborious. I have through trial and error
developed the system below which keeps excessive amounts of sediment
out of the canned juice product, and it is also much more efficient
than any other system I have seen.
The Filter Bucket
It is often possible to find tall buckets from
restaurants (used for bulk foods) that have the same diameter as
a standard 5 gallon bucket, but hold 7 or 8 gallons. You will need
one of those, and they are most likely found at the same place you
find sturdy 5 gallon buckets, a local donut shop or bakery.
Filter
Bucket at left
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Drill a 3/4 hole in a side of the tall bucket
where the handle falls, just barely above the bottom. Swing the
handle to the back side of the bucket to get it out of the way.
Then fit a 3/4", short plastic nipple in the hole, enlarging the
hole with a round wood rasp as needed to get a tight fit. Fit a
3/4" plastic gate valve to the nipple on the outside of the bucket,
and on the inside use a 1 1/4" to 3/4" female reducer as a nut on
the inside. A thin "O" ring of the correct diameter can be placed
between the nut and the plastic bucket on the inside, and the nut
compresses the "O" ring correctly, thus forming a water tight seal.
These are all common parts found in most any hardware store.
Now you have a bucket from which you can pour a
filtered liquid through the gate valve, and not have to lift the
bucket and slosh it around while pouring.
The filter to use is a standard 5 gallon nylon
paint filter, fine grade. The filter is large enough to drop inside
the bucket, and the top pulled out and over the rim and down past
the top two reinforcing ridges on the bucket. These filters are
quite durable and will last for years if treated with care. They
are made from pure nylon, have no additives, and are completely
safe for this particular use. All of these items are available from
any True Value hardware store worth its salt.
But now comes the problem. The filter will not
stay in place when liquid is poured inside -- the weight of the
liquid pulls the filter to the bottom of the bucket, and that is
not desirable. That means you have to securely tie the filter to
the bucket. The easiest way to do that is to use cotton clothesline
rope, as it is very smooth and soft and will not abrade the nylon
filter.
You start with 5 feet of rope, and tie about a 2
inch loop in one end. Then approximately 26 inches from the loop you
make another 2 inch loop in the rope, which will leave a "tail" on
the rope of about 28 inches.
---------(28")--------------0---------------(26")------------0
To use this rope, wrap it around the bucket (over
the filter) in between reinforcing rings near the top of the bucket,
put the "tail" through end loop and pull the rope tight, then put
the tail through the middle loop, and tighten again. You will find
you can tighten the rope nicely, and "squeeze" the bucket between
the two loops, so the filter is held tightly while not being harmed
in any way. Between the loops, push up a section of the tail of
the rope, put a loop through that, pull tightly, and you have a
secure knot that can be loosened simply by pulling on the end of
the "tail."
Now the bucket, complete with filter and spigot,
can be placed on a table with the gate valve protruding over the
edge, and freshly made juice poured in the top. Replace the lid
to the bucket, and grind, juice, or squeeze more juice, and add
it the to the bucket. The filter removes the large particles, and
can handle about 20 gallons of raw juice before it needs to be removed
and cleaned. For mass production, two filters can be employed, one
being washed and dried while the other is in use.
When 3 to 4 gallons of filtered juice are visible
in the bottom of the bucket, put a pot or pan under the gate valve
and twist the handle, and the filtered liquid flows nicely with
full control over the volume of flow desired.
The Sediment Bucket
That filtered liquid needs to sit and so very fine
particulates will precipitate to the bottom, leaving wonderfully
clear, pure juice above the sediment. For this purpose I installed
a small spigot about a quarter of the way up a 5 gallon bucket.
Sediment
bucket on right
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The sediment bucket should be placed where it need
not be moved nor jostled, so very fine particles will sediment via
gravity to the bottom of the bucket -- below the spigot! Drain the
filtered juice from the strainer bucket into a large pitcher and
pour it into the sediment bucket, then wait a half hour or so. Now
absolutely clear, pure juice can be drained out of the bucket above
the sediment layer, and it is ready for canning.
When the sediment reaches the level of the spigot,
it can be poured on the compost heap, the bucket hosed out, and
the process resumed. Actually, it is much harder to describe this
system than to build or use it!
With a total cost of about $10.00, and a useful
life measured in decades if stored away from sunlight, this system
is certainly cost effective. And the end result is perfectly pure,
filtered canned juice, which may be stored safely on a shelf, its
health and beauty captured in quart or half gallon sparkling jars
to enjoy for years.
 
Some "juices" should be canned without the use of
the filter or sediment buckets, of course, such as applesauce and
some squashes. This produce is chopped into chunks, boiled
until soft, then run through a "Squeezo" strainer. Even though
they are thick liquids, they can be put into the bottling tank
(below), heated over a kerosene stove, and poured directly into hot
canning jars for home canning.
The Bottling Tank
Most people will stop with just these two modified
buckets, and use a stainless steel stock pot to heat the pure juice
before canning. The juice must then be dipped out of the stock pot
(gravy ladle) and poured into dry heated canning jars, a lid and
ring added, and the jar given a boiling water bath canning for 20
minutes.
Stainless
steel bottling tank showing valve. Click to enlarge.
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For those who really want a "Look Ma, no hands!!!
type of canning system, very fast and efficient and that does not
involve ladle dipping of hot liquid, a heating tank with a bottom
drain can be built that works like a charm.
I used a stainless steel tank, 8 inches wide and
36 inches tall, that began life as a water "blanket" filter
and was discarded. I had a sheet metal shop drill through the side
near the bottom and weld on a 3/4" stainless steel nipple. To that
I added a brass gate valve and a 90 degree angle, so liquids can
be heated right in the stainless steel tank sitting on a cooking
stand over a kerosene stove, and the gate valve opened to fill canning
jars directly from the valve: the liquid need not be ladled and
splashed at all.
With this system, the juice can be made, run through
the filter bucket, then the settling tank, be heated in the stainless
steel tank over a kerosene stove, the jars filled and then put in a water bath canner
sitting on another kerosene cooker, and the whole process is so
efficient it is almost like an assembly line!
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I use the Squeezo Strainer to make raw
juice from vegetables and fruit. Using a larger screen,
the Squeezo strainer can also make applesauce and wonderful
pumpkin sauce. As with all large vegetables and fruits,
the pumpkin must first be cut into 2" squares, then boiled for
20 minutes. Once cooled, it is soft enough to run through the
strainer. The pure sauce slides down the chute while the skin
is expelled out the end into a separate container.
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MORE ON CANNING
JUICES FROM FARMERIK
The Mehu-Liisa steam juicer is an ideal way to
extract and process relatively small amounts of fruit juices. Mine
holds 10 liters of fruit, or about 11 quarts. The hot juice can be
drained directly into sterilized bottles or jars and sealed. Then it
only needs to be stored in a cool dark place, like any other canned
food. Today I used mine to make raspberry juice. With this fruit, I
got about 2/3 as much juice as the whole fruit I put in the juicer,
more than 6 quarts. This juice is very flavorful, and I dilute it
with an equal amount of water before drinking, and it still tastes
much more like the fruit it came from than any store bought juice I
ever had.
Lehman's Hardware offers this juicer as well as
rubber stoppers for old fashion soda or beer bottles with unthreaded
tops. Ordinary canning jars work fine too. The juice is also perfect
for making pan cake syrups by adding an equal volume of sugar, or in
any jelly recipe. This unit can also be used for steam cooking,
blanching, reheating or defrosting. - FARMERIK
Mehu-Liisa steam juicer instructions, in pdf format.
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