The Manufacture of Tomato Products: Including whole tomato pulp or puree, tomato catsup, chili sauce, tomato soup, trimming pulpHier, W. G. (Wayland Gladstone)
Science
The Manufacture of Tomato Products: Including whole tomato pulp or puree, tomato catsup, chili sauce, tomato soup, trimming pulp
Hier, W. G. (Wayland Gladstone)
Tomato products
The government does not object to the manufacture of tomato products
from trimmings, but they demand that the product comply with the
regulations as to micro-organisms, and that it be sold for exactly what
it is, and if put up for sale to the consuming public, that it be
labeled—“made from pieces of tomatoes,” or, “made from tomato
trimmings,” or, if small tomatoes are worked up with the trimmings,
“made from small tomatoes and tomato trimmings,” or, “made from small
tomatoes and pieces of tomatoes.”
Method of Handling Tomatoes When Trimmings Are Pulped
If the trimmings are to be pulped the tomatoes must be very carefully
sorted, and thoroughly washed, preferably in a rotary washer. As it is
practically impossible to sort or wash the trimmings, the tomatoes must
be in almost perfect condition when they enter the scalder. Washing the
trimmings carries away too much of the tomato substance which clings to
them, and sorting is not practicable, as the soft rot and mold becomes
incorporated in the entire mass and it is impossible to separate it. The
peelers can not be depended upon to sort out any substantial amount of
rot when they do the peeling. Therefore the only thing that can be done
toward keeping down the micro-organisms is _painstaking sorting of the
whole tomatoes and thorough washing_ to keep out the mold, having the
conveying equipment and tanks clean, and bringing the trimmings to a
boil quickly to prevent multiplication of yeasts and bacteria. It is
wise to steam out the peeling buckets and bucket conveyors at noon, as
well as at quitting time, as the juice which lies in them is constantly
undergoing fermentation.
When the trimmings are pulped, either alone or with the small tomatoes,
the tomatoes are all washed and sorted before they are graded. The
trimmings should be cooked before they are run through the pulp
finisher, so as to get all of the clinging tomato substance cooked away
from the skin. The density to which to cook the trimmings can be judged
fairly well by the eye, or the specific gravity test by weighing can be
used.
The pulp is canned the same as whole pulp.
CHAPTER XII
THE MANUFACTURE OF TOMATO SOUP
Convenience and Economy of Canned Soup
Public-domain text, read in full here on John Shaqi.
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