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 sugars most commonly used in catsup are granulated cane, clarified
cane, granulated beet, and raw, unrefined sugars.
The purest of these are granulated cane and granulated beet, which are
equally good. There is a prejudice against beet sugar by many people in
the east, who think it is not as good as cane sugar, but this is a
mistaken idea. Any food chemist will tell you that they are the same,
and are equally good. All granulated sugar, whether cane or beet, must
contain at least 99.5% of sucrose (pure sugar) to comply with the
federal standard. And remember that sucrose is sucrose, whether derived
from sugar cane or sugar beet. Almost all granulated sugar will test
99.8% sucrose, which is slightly above the minimum established by the
government. This leaves a negligible quantity of impurities, which in
the case of beet sugar are derived from the beet, and in cane sugar from
the cane. If there is any difference between the two sugars it lies in
this very minute quantity of impurities and such a difference can surely
not be objected to. Granulated sugar, whether cane or beet, is the
purest food article in commerce.
Clarified cane sugar is not quite as pure as granulated, but when used
in catsup will make equally as good a product as granulated will;
however, as the percentage of sucrose is not so high, a little more of
it has to be used. A considerable saving can often be made by buying
clarified instead of granulated sugar, but the purchase should be made
on polariscope test, so the buyer knows exactly what he is getting.
Raw sugars are slightly less pure than clarified, although there is very
little difference between the best grades of raw sugar and clarified.
Good centrifugal raw sugar will contain about 96.5% of sucrose. The
lower grades of raw sugars should not be used, as they are dark and will
darken the catsup to some extent, but there is scarcely any color to the
better grades, and they give good results. The use of raw sugars often
permits quite a saving on the sugar bill. They should be bought on
polariscope test, and when received should be tested against the sample
on which they were bought.
Sugar Syrups
“Cane sugar syrups” have for several years been offered to canners and
preservers, and they are advertised to be equal pound for pound to
granulated sugar and to be considerably cheaper. The samples of these
heavy, colorless syrups that I have tested have contained a considerable
percentage of invert sugar, and also moisture. The moisture is, of
course, worthless, and as the invert sugar is less sweet than sucrose it
is ridiculous to claim that such a product is equal in sweetness to
granulated sugar. These syrups are said to be used by some catsup
makers, however the saving that is effected by their use is probably
imaginary.
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