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 other causes of poor colored catsup are scorching at some stage in
the manufacturing process and too much cooking. By too much cooking is
not only meant too long a cook at one time, but also too much cooking in
the aggregate. For example, a packer receives tomatoes of good color and
he cooks them into pulp, which requires a cook of thirty minutes. He
packs the pulp in No. 10 cans and sterilizes it about forty minutes, and
he has a good colored pulp, as it has only received two short cookings.
He stores this pulp for several months, and then makes it into catsup.
It is reheated, which is hard on the color, as heat applied to cold pulp
for five minutes to bring it to a boil seems to hurt the color as much
as a half hour added on to the cook after the pulp is hot. After
reheating, it is cooked into catsup, which requires about thirty
minutes, and after being bottled it is sterilized at a high temperature
for about an hour, which makes the fourth cooking those tomatoes get.
This is what is meant by too much cooking in the aggregate. Too long a
cook at one time will, of course, also darken the product.
Scorching is more frequent with catsup made from pulp than with that
made from fresh tomatoes. Much of the catsup made from pulp, although
not actually scorched, has a very faint scorched flavor to it.
It is hard indeed to make catsup from pulp which tastes like the goods
which is bottled from freshly run tomatoes. It falls behind in both
color and flavor. One finds that color and flavor are very closely
associated in catsup. A bright red catsup is practically always a fine
flavored product, while a dull colored catsup with a brownish cast to it
very frequently has a more or less unpleasant taste with the suggestion
of being somewhat scorched.
Advantage of Direct Conversion of Tomatoes Into Catsup
Many catsup makers are doing away with winter packing almost altogether.
They bottle at least 90% of their catsup direct from fresh tomatoes.
Half of the remaining 10% is made from 50% fresh tomatoes and 50% pulp,
the pulp being added about ten minutes before the cooking is completed.
This fresh tomato and pulp mixture makes a much better flavored product
than one can expect to get from straight pulp. Pulp can always be used
in combination with fresh tomatoes at the beginning and at the close of
the season when the tomato receipts are light.
Catsup made direct from tomatoes is not only of superior quality, but it
can be manufactured at least 20c a dozen cheaper for the pint size than
catsup made from canned pulp. In many cases the difference will run more
than that. Packers who put up a general line of tomato products will do
well to reserve their fresh tomatoes for catsup, and to use their pulp
for bean sauce, spaghetti sauce, tomato soup, etc., all of which can be
made better from pulp than one can make catsup from pulp.
Thickness
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