AN IMPROVED PROCESS OF TREATING CERTAIN VEGETABLE SUBSTANCES TO RENDER THE SAME SUITABLE AS A COLORING MATTER FOR STOUT AND PORTER
Year: 1881

page_text: LETTERS PATENT to Alfred Gough, of the Town and County of Buckingham,
for an Invention of "AN IMPROVED PROCESS OF TREATING CERTAIN
VEGETABLE SUBSTANCES TO RENDER THE SAME SUITABLE AS A COLORING
MATTER FOR STOUT AND PORTER."
PROVISIONAL SPECIFICATION left by the said Alfred Gough at the Office
of the Commissioners of Patents on the 22nd June 1881.
ALFRED GOUGH, of the Town and County of Buckingham. "AN IMPROVED
PROCESS OF TREATING CERTAIN VEGETABLE SUBSTANCES TO RENDER THE SAME
SUITABLE AS A COLORING MATTER FOR STOUT AND PORTER."
Many attempts have been made to produce a cheap but efficient substitute for
the black malt, caramel, &c., heretofore used as a coloring matter for stout and
porter, but none has been found prior to my Invention affording a good color and
possessing the peculiar combination of properties necessary to render it available
for use in lieu of those substances without injury to the qualities of the beer.
After many experiments I have discovered a process of treating certain vegetable
substances, namely, the roots of the plants known as mangold wurzel, beet, turnip,
and other similar roots, whereby these substances may be converted into an
excellent coloring matter for stout and porter.
The roots when treated by the process of my Invention yield a product which
is found to possess coloring properties equal or superior to those of the black malt
heretofore used, as well as nourishing properties, in which the latter is entirely
deficient. These nourishing properties are imparted to the beer, and whilst its
qualities are otherwise unaltered or uninjured it is rendered a more wholesome and
sustaining beverage. The product of the process being incomparably cheaper
enables a great economy to be effected in the brewing of stout and porter, and is
therefore calculated in every way to form an admirable substitute for the coloring
matters heretofore used.

page_text: The Invention consists in a process of washing, slicing, or cutting up, roasting
and grinding the roots above mentioned, whereby they are endowed with the
coloring properties required in the brewing of stout and porter.
According to my Invention the roots are first washed in water to free them
from any adhering earth, and then sliced or cut into small pieces and placed in a
rotary metal cylinder mounted in bearings over a fire or other source of heat.
The roasting operation is continued for a length of time, varying according to the
depth of color it is desired to obtain. After the roasting operation is completed
the matters are removed from the cylinder and allowed to cool, and are then
crushed or ground to powder under or between rollers, or by means of other
suitable apparatus. The product is then fit for use in the same way as black malt
is used.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Alfred Gough in the Great Seal Patent Office on the 20th December
1881.
ALFRED GOUGH, of the Town and County of Buckingham. "AN IMPROVED
PROCESS OF TREATING CERTAIN VEGETABLE SUBSTANCES TO RENDER THE SAME
SUITABLE AS A COLORING MATTER FOR STOUT AND PORTER."
Many attempts have been made to produce a cheap but efficient substitute for
the black malt, caramel, &c., heretofore used as a coloring matter for stout and
porter, but none has been found prior to my Invention affording a good color and
possessing the peculiar combination of properties necessary to render it available
for use in lieu of those substances without injury to the qualities of the beer.
After many experiments I have discovered a process of treating certain vegetablo
substances, viz., the roots of the plants known as mangold wurzel, beet, turnip,
and other similar roots, whereby these substances may be converted into an
excellent coloring matter for stout and porter. The roots when treated by the
process of my Invention yield a product which is found to possess coloring
properties equal or superior to those of the black malt heretofore used, as well as
nourishing properties, in which the latter is entirely deficient. These nourishing
properties are imparted to the beer, and whilst its qualities are otherwise unaltered
or uninjured it is rendered a more wholesome and sustaining beverage. The product
of the process being incomparably cheaper enables a great economy to be effected
in the brewing of stout and porter, and is therefore calculated in every way to
form an admirable substitute for the coloring matters heretofore used.
The Invention consists in a process of washing, slicing, or cutting up, roasting
and grinding the roots above mentioned, whereby they are endowed with the
coloring properties required in the brewing of stout and porter.
According to my Invention the roots are first washed in water to free them
from any adhering earth and then sliced or cut into small pieces and placed in a
rotary metal cylinder mounted in bearings over a fire or other source of heat.
The roasting operation is continued for a length of time, varying according to the
depth of color it is desired to obtain. After the roasting operation is completed
the matters are removed from the cylinder and allowed to cool, and are then
crushed or ground to powder under or between rollers, or by means of other
suitable apparatus. The product is then fit for use in the same way that black
malt is used.
Having described the nature of my Invention, and the manner of performing the
same, I declare that what I claim as my Invention to be protected by the herein-
before in part recited Letters Patent is,--
1st. The herein described method of treating mangold wurzel and other roots to
render the same suitable for use as coloring matter for stout and porter.
2nd. As a new article of manufacture, a coloring matter for stout and porter,
prepared from mangold wurzel and other roots, substantially as herein described.
In witness whereof, I, the said Alfred Gough, have hereunto set my hand
and seal, this Nineteenth day of December, A.D. 1881.