The Raisin Industry: A practical treatise on the raisin grapes, their history, culture and curingEisen, Gustavus A.
History
The Raisin Industry: A practical treatise on the raisin grapes, their history, culture and curing
Eisen, Gustavus A.
Raisins; Viticulture -- California
considered a prominent feature in the perfect raisin.
The general method of drying is, however, to place good, bad and
indifferent bunches together on the same tray, with no attempt at
assorting. While this method may do when superior raisins are not
required, and when no higher price is paid for better grades, it will be
found a very inferior practice when the grower desires to pack himself,
in order to reap all the benefit he can out of his crop. For all
superior raisins, I therefore strongly recommend the assorting of the
raisins on the trays as having the following advantages. It requires
less handling of the large bunches. The large bunches dry the slowest,
and by having them from the beginning separated from the small and the
loose the latter can be brought away to the sweatboxes, when ready,
without necessitating the reassorting and handling from the trays, which
at this time, when the stems are very brittle, is always expensive as
well as injurious to the fine bunches. The larger bunches, which are to
produce layer raisins, require less drying, as they are to be sweated or
equalized before being packed. The smaller and inferior bunches, on the
contrary, must be stemmed and assorted by machinery before they are
equalized, and immediately after they are taken from the trays. In order
to “stem” readily these raisins must be rather overdried, as if soft
they would tear from the stems instead of having the latter broken. We
can therefore perceive the advantage of having the two grades on
different trays. Without the necessity of assorting we can simply take
up our “layer” trays when they are ready and allow our “loose” to remain
as long out as necessary, without fear of having the layers overdried.
By this assorting when green, each grade can be treated separately in a
quick and effective way.
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