Getting
Started Our
pure fresh grape juices come packed in 11L (2.87 US gal) food grade
sterile plastic containers. Each and every canister is labelled. The
label contains the winery and country of origin, the varietal
information and an independent chemical analysis. The analysis is
complete with pH, Total Acid and Brix parameters. The grapes
harvested for our juices are picked at the peak of their ripeness
which is determined by that year's harvest conditions. This means
our pure fresh juices are balanced by mother nature. There is
absolutely NO NEED to add water or acid blend, like you do with
concentrates.
Pouring
the Juice After
all your equipment has been sterilized and rinsed with water, open
the canister and pour the juice into your carboy (a). The "seedlike"
sediments (bitartrates b), need not be added to the vessel
and can be excluded by using a strainer when pouring the juice into
your carboy. Leave 7-8 inches of space at the top of the carboy or
demijohn, and place the balance of juice into either gallons jugs or
leave in one of the plastic canisters. When full of juice, the
gallon jugs must also have 3-4 inches of space below the neck. Take
a specific gravity reading using the hydrometer (c). It
should usually be anywhere from 1070 - 1092. Taking the specific
gravity gives us information about the sugar content of the juice.
It is read by pouring juice into the hydrometer's plastic cylinder
and allowing the hydrometer to float freely. In figure (c)
you can see the level of the liquid meets the scale at approximately
1086. The 1080 is visible and the 1090 line is submerged in the
juice.
Making
a Yeast Starter Make
a yeast starter by pouring appoximately 100 ml (3 oz.) of juice and
100 ml (3 oz.) of luke warm water into a large glass mug.
Sprinkle the yeast into this solution and allow the yeast to
proliferate for about 30 minutes at room temperature. After the 30
minutes have elapsed, pour 3/4 of the yeast "slurry"
volume into the carboy and 1/4 into the over flow vessels. The
overflow containers could be a couple of gallon jugs or the 11 L
plastic canister.Sacchromyces bayanus is
the yeast strain that we prefer using. With them we never experience
stuck ferments or fermentation of prolonged duration. The red
juices require the addition of pectic enzyme to aid in later
clarification. Add the pectic enzyme in the powder form to the red
juice before adding the yeast for best results. Pectins
(polysaccharide moieties), are naturally found in fresh juice and
derived from the skins. It constitutes much of the haze in young
wine. The pecitic enzyme breaks down the pectin and ensures that the
haze will settle to the bottom during subsequent cold storage aiding
in natural clarification.