(3) Curing.
(i)
Sausage. The sausage may
be stuffed in animal casings, hydrocellulose casings, or cloth bags. During any
stage of treating the sausage for the destruction of live trichinae, except as
provided in method 5, these coverings shall not be coated with paraffin or like
substance, nor shall any sausage be washed during any prescribed period of
drying. In the preparation of sausage, one of the following methods may be
used:
(a)
Method no. 1. The
meat shall be ground or chopped into pieces not exceeding three-fourths of an
inch in diameter. A dry-curing mixture containing not less than three and
one-third pounds of salt to each hundred-weight of the unstuffed sausage shall
be thoroughly mixed with the ground or chopped meat. After being stuffed,
sausage having a diameter not exceeding three and one-half inches, measured at
the time of stuffing, shall be held in a drying room not less than 20 days at a
temperature not lower than 45 degrees Fahrenheit, except that in sausage of the
variety known as pepperoni, if in casings not exceeding one and three-eighths
inches in diameter measured at the time of stuffing, the period of drying may
be reduced to 15 days. In no case, however, shall the sausage be released from
the drying room in less than 25 days from the time the curing materials are
added, except that sausage of the variety knowns as pepperoni, if in casings
not exceeding the size specified, may be released at the expiration of 20 days
from the time the curing materials are added. Sausage in casings exceeding
three and one-half inches, but not exceeding four inches, in diameter at the
time of stuffing, shall be held in a drying room not less than 35 days at a
temperature not lower than 45 degrees Fahrenheit, and in no case shall the
sausage be released from the drying room in less than 40 days from the time the
curing materials are added to the meat.
(b)
Method no. 2. The meat
shall be ground or chopped into pieces not exceeding three-fourths of an inch
in diameter. A dry-curing mixture containing not less than three and one-third
pounds of salt to each hundred-weight of the unstuffed sausage shall be
thoroughly mixed with the ground or chopped meat. After being stuffed, sausage
having a diameter not exceeding three and one-half inches, measured at the time
of stuffing, shall be smoked not less than 40 hours at a temperature not lower
than 80 degrees Fahrenheit, and finally held in a drying room not less than 10
days at a temperature not lower than 45 degrees Fahrenheit. In no case,
however, shall the sausage be released from the drying room in less than 18
days from the time the curing materials are added to the meat. Sausage
exceeding three and one-half inches, but not exceeding four inches, in diameter
at the time of stuffing, shall be held in a drying room, following smoking as
above indicated, not less than 25 days at a temperature not lower than 45
degrees Fahrenheit, but in no case shall the sausage be released from the
drying room in less than 33 days from the time the curing materials are added
to the meat.
(c)
Method no.
3. The meat shall be ground or chopped into pieces not exceeding
three-fourths of an inch in diameter. A dry-curing mixture containing not less
than three and one-third pounds of salt to each hundred-weight of the unstuffed
sausage shall be thoroughly mixed with the ground or chopped meat. After
admixture with salt and other curing materials and before stuffing, the ground
or chopped meat shall be held at a temperature not lower than 34 degrees
Fahrenheit for not less than 36 hours. After being stuffed, the sausage shall
be held at a temperature not lower than 34 degrees Fahrenheit for an additional
period of time sufficient to make a total of not less than 144 hours from the
time the curing materials are added to the meat, or the sausage shall be held
for the time specified in a pickle-curing medium of not less than 50 degrees
strength (salometer reading) at a temperature not lower than 44 degrees
Fahrenheit. Finally, sausage having a diameter not exceeding three and one-half
inches, measured at the time of stuffing, shall be smoked for not less than 12
hours. The temperature of the smokehouse during this period at no time shall be
lower than 90 degrees Fahrenheit; and for four consecutive hours of this period
the smokehouse shall be maintained at a temperature not lower than 128 degrees
Fahrenheit. Sausage exceeding three and one-half inches, but not exceeding four
inches, in diameter at the time of stuffing shall be smoked, following the
prescribed curing, for not less than 15 hours. The temperature of the
smokehouse during the 15-hour period shall at no time be lower than 90 degrees
Fahrenheit, and for seven consecutive hours of this period the smokehouse shall
be maintained at a temperature not lower than 128 degrees Fahrenheit. In
regulating the temperature of the smokehouse for the treatment of sausage under
this method, the temperature of 128 degrees Fahrenheit shall be attained
gradually during a period of not less than four hours.
(d)
Method no. 4. The meat
shall be ground or chopped into pieces not exceeding one-fourth of an inch in
diameter. A dry-curing mixture containing not less than two and one-half pounds
of salt to each hundredweight of the unstuffed sausage shall be thoroughly
mixed with the ground or chopped meat. After admixture with the salt and other
curing materials and before stuffing, the ground or chopped sausage shall be
held as a compact mass, not more than six inches in depth, at a temperature not
lower than 36 degrees Fahrenheit for not less than 10 days. At the termination
of the holding period, the sausage shall be stuffed in casings or cloth bags
not exceeding three and one-third inches in diameter, measured at the time of
stuffing. After being stuffed, the sausage shall be held in a drying room at a
temperature not lower than 45 degrees Fahrenheit for the remainder of a 35-day
period, measured from the time the curing materials are added to the meat. At
any time after stuffing, if the establishment operator deems it desirable, the
product may be heated in a water bath for a period not to exceed three hours at
a temperature not lower than 85 degrees Fahrenheit, or subjected to smoking at
a temperature not lower than 80 degrees Fahrenheit, or the product may be both
heated and smoked as specified. The time consumed in heating and smoking,
however, shall be in addition to the 35-day holding period.
(e)
Method no. 5. The meat
shall be ground or chopped into pieces not exceeding three-fourths of an inch
in diameter. A dry-curing mixture containing not less than three and one-third
pounds of salt to each hundredweight of the unstuffed sausage shall be
thoroughly mixed with the ground or chopped meat. After being stuffed, the
sausage shall be held for not less than 65 days at a temperature not lower than
45 degrees Fahrenheit. The coverings for sausage prepared according to this
method may be coated at any stage of the preparation before or during the
holding period with paraffin or other substance approved by the
commissioner.
(iv)
Hams and pork shoulder picnics. In the curing of hams and pork
shoulder picnics either of the following methods may be used:
(a)
Method no. 1. The hams
and pork shoulder picnics shall be cured by a dry-salt curing process not less
than 40 days at a temperature not lower than 36 degrees Fahrenheit. The
products shall be laid down in salt, not less than four pounds to each
hundredweight of product, the salt being applied in a thorough manner to the
lean meat of each item. When placed in cure the products may be pumped with
pickle if desired. At least once during the curing process the products shall
be overhauled and additional salt applied, if necessary, so that the lean meat
of each item is thoroughly covered. After removal from cure the products may be
soaked in water at a temperature not higher than 70 degrees Fahrenheit for not
more than 15 hours, during which time the water may be changed once; but they
shall not be subjected to any other treatment designed to remove salt from the
meat, except that superficial washing may be allowed. The products shall
finally be dried or smoked not less than 10 days at a temperature not lower
than 95 degrees Fahrenheit.
(b)
Method no. 2. The products shall be cured by a dry-salt curing
process at a temperature not lower than 36 degrees Fahrenheit for a period of
not less than three days for each pound of weight (green) of the individual
items. The time of cure of each lot of such products placed in cure shall be
calculated on a basis of the weight of the heaviest item of the lot. Products
cured by this method, before they are placed in cure, shall be pumped with
pickle solution of not less than 100 degrees strength (salometer), about four
ounces of the solution being injected into the shank and a like quantity along
the flank side of the body bone (femur). The products shall be laid down in
salt, not less than four pounds of salt to each hundredweight of product, the
salt being applied in a thorough manner to the lean meat of each item. At least
once during the curing process the products shall be overhauled and additional
salt applied, if necessary, so that the lean meat of each item is thoroughly
covered. After removal from the cure the product may be soaked in water at a
temperature not higher than 70 degrees Fahrenheit for not more than four hours,
but shall not be subjected to any other treatment designed to remove salt from
the meat, except that superficial washing may be allowed. The products shall
then be dried or smoked not less than 48 hours at a temperature not lower than
80 degrees Fahrenheit, and finally shall be held in a drying room not less than
20 days at a temperature not lower than 45 degrees Fahrenheit.
(v)
Boneless pork loins
and loin ends. In lieu of heating or refrigerating to destroy possible
live trichinae in boneless loins, the loins may be cured for a period of not
less than 25 days at a temperature not lower than 36 degrees Fahrenheit by the
use of one of the following methods:
(a)
Method no. 1. Application of a dry-salt curing mixture
containing not less than five pounds of salt to each hundredweight of
meats.
(b)
Method no.
2. Application of a pickle solution of not less than 80 degrees
strength (salometer) on the basis of not less than 60 pounds of pickle to each
hundredweight of meat.
(c)
Method no. 3. Application of a pickle solution added to the
dry-salt cure prescribed as Method no. 1 in this subparagraph (v) provided the
pickle solution is not less than 80 degrees strength (salometer).
After removal from cure, the loins may be soaked in water
for not more than one hour at a temperature not higher than 70 degrees
Fahrenheit or washed under a spray but shall not be subjected, during or after
the curing process, to any other treatment designed to remove salt. Following
curing, the loins shall be smoked for not less than 12 hours. The minimum
temperature of the smokehouse during this period at no time shall be lower than
100 degrees Fahrenheit, and for four consecutive hours of this period the
smokehouse shall be maintained at a temperature not lower than 125 degrees
Fahrenheit. Finally, the product shall be held in a drying room for a period of
not less than 12 days at a temperature not lower than 45 degrees
Fahrenheit.
(d)
General instructions.
When necessary to comply with the requirements of this
section, the smokehouses, drying rooms, and other compartments used in the
treatment of pork to destroy possible live trichinae shall be suitably
equipped, by the operator of the official establishment, with accurate
automatic recording thermometers. Officers in charge are authorized to approve
for use in sausage smokehouses, drying rooms, and other compartments, such
automatic recording thermometers as are found to give satisfactory service and
to disapprove and require discontinuance of use, for purposes of the
regulations in this Article, any thermometers (including any automatic
recording thermometers) of the establishment that are found to be inaccurate or
unreliable.