US566268A - Process of pasteurizing milk - Google Patents
Process of pasteurizing milk Download PDFInfo
- Publication number
- US566268A US566268A US566268DA US566268A US 566268 A US566268 A US 566268A US 566268D A US566268D A US 566268DA US 566268 A US566268 A US 566268A
- Authority
- US
- United States
- Prior art keywords
- package
- milk
- article
- pasteurizing milk
- pasteurizing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title description 24
- 210000004080 Milk Anatomy 0.000 title description 22
- 235000013336 milk Nutrition 0.000 title description 22
- 239000008267 milk Substances 0.000 title description 22
- 239000000126 substance Substances 0.000 description 16
- 239000006071 cream Substances 0.000 description 8
- 239000012188 paraffin wax Substances 0.000 description 8
- 239000001993 wax Substances 0.000 description 8
- 239000004215 Carbon black (E152) Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 150000002430 hydrocarbons Chemical class 0.000 description 6
- 230000001954 sterilising Effects 0.000 description 6
- 235000014121 butter Nutrition 0.000 description 4
- 230000001105 regulatory Effects 0.000 description 4
- 244000052616 bacterial pathogens Species 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000003925 fat Substances 0.000 description 2
- 235000019197 fats Nutrition 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002335 preservative Effects 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000004642 transportation engineering Methods 0.000 description 2
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
- A23C3/00—Preservation of milk or milk preparations
- A23C3/02—Preservation of milk or milk preparations by heating
- A23C3/023—Preservation of milk or milk preparations by heating in packages
Definitions
- the objects of our invention are to preserve or pasteurize milk, modified milk, and cream Without physical or chemical change from the condition in which they are found by destroying germs, ferments, or other elements of decomposition by an inexpensive and simple process Without the addition of sugar or other preservatives, and, further, to apply means whereby the finished article can be shipped and handled without the risk of the agitation of the package churning the butter out of the substance.
- WVe claim 1 The process of sterilizing or pasteurizing milk, modified milk, or cream'by heating it in hermeticallysealed original packages, the package being charged With a superimposed volume of common atmospheric air sufficient to develop a pressure exceeding by one atmosphere or more the vapor-tension generated at any stage of the process, and at any temperature used, thus preventing any vaporizing of the article under treatment.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Dairy Products (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Description
NITED STATES ATENT OFFICE.
LORENZO G. FAGERSTEN AND CLAUS F. P. KORSSELL, OF CHICAGO, ILLINOIS.
PROCESS OF PASTEURIZING MILK.
SPECIFICATION forming part of Letters Patent No. 566,268, dated August 18, 1896. Application filed June 27, 1895. Serial No. 554,246. (No specimens.)
To aZZ whom it may concern.-
Be it known that We, LORENZO G. FAGER- STEN and OLAUs F. P. KORSSELL, citizens of the United States, and residents of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Processes of sterilizing or Pasteurizing Milk, Modified Milk, and Cream, of which the following is a specification.
The objects of our invention are to preserve or pasteurize milk, modified milk, and cream Without physical or chemical change from the condition in which they are found by destroying germs, ferments, or other elements of decomposition by an inexpensive and simple process Without the addition of sugar or other preservatives, and, further, to apply means whereby the finished article can be shipped and handled without the risk of the agitation of the package churning the butter out of the substance.
In carrying out our process We place the article to be treated in packages of any size desired at ordinary temperatures, also placing in the top of the package a hydrocarbon of high melting-point, say about 125 Fahrenheit, or any similar substance, as paraffin, wax, 850., sufficient to form a covering-layer, When melted, on the surface of the article under treatment. Space is also left in the top of the package for a volume of atmospheric air, with which the package is then charged, of sufficient pressure or of adequate relative proportion to the quantity of the liquid and the size of the package to insure a pressure during the process commensurate with the increasing vapor-tension, the gaspressure to exceed the vapor-tension by one atmosphere or more at any stage during the process. After thus charging the package it is then hermetically sealed and subjected to heat so regulated that it does not at any time exceed the conductivity of the substance under treatment. The heating part of the process is completed when the temperature of the substance under treatment has reached about 230 Fahrenheit.
All mechanical agitation or churning, of the contents, which would favor the separating out of the butter or fats, must be carefully avoided until after the contents have been rapidly cooled to the solidification-point of the hydrocarbon, paraffin, wax, or other similar covering on the top of the substance, when it Will be found that the contents are inhibited from agitation or churning under ordinary handling.
We do not claim, broadly, the use of paraffin, wax, or similar substances in the preserving of foods, but only the use of them to prevent churning of milk during transportation and handling.
WVe claim 1. The process of sterilizing or pasteurizing milk, modified milk, or cream'by heating it in hermeticallysealed original packages, the package being charged With a superimposed volume of common atmospheric air sufficient to develop a pressure exceeding by one atmosphere or more the vapor-tension generated at any stage of the process, and at any temperature used, thus preventing any vaporizing of the article under treatment.
2. The process of sterilizing or pasteurizing milk, modified milk, or cream, by placing the article to be treated in original packages together with a hydrocarbon of high meltingpoint, paraffin, wax, or similar substance, then charging the package With common atmospheric air, sufficient to develop a pressure exceeding by one atmosphere or more, the vapor-tension generated during the following steps, and then hermetically sealing the package and subjecting it to heat so regulated as not to exceed the conductivity of the article under treatment at any point of the package or during any stage of the process; the degree of heating depending upon how long it be desired to keep the article and ranging from 140 to 230 Fahrenheit.
LORENZO G. FAGERSTEN. CLAUS F. P. KORSSELL.
WVitnesses:
FRED P. KENNEDY, HENRY WEIGAND, Jr.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US566268A true US566268A (en) | 1896-08-18 |
Family
ID=2634981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US566268D Expired - Lifetime US566268A (en) | Process of pasteurizing milk |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US566268A (en) |
-
0
- US US566268D patent/US566268A/en not_active Expired - Lifetime
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