Kraft General Foods, Inc.

Kraft Foods, Inc.

Kraft, Inc.

Susan P Monckton

Gary W Trecker

Brent K Pope

James W Moran

Kaser R Nath

A method for producing a cheese product directly from milk in a short period of time is provided. In the method, pasteurized milk is treated with lactic acid to provide an acidified milk product. The resulting acidified milk is then subjected to ultrafiltration (UF), and optionally diafiltration (DF), to form a UF retentate (or UF/DF retentate if diafiltration is used) which is concentrated by about a factor of about 4 to about 7 and which has a lactose concentration of about 2.5 to about 4.0 percent (UF retentate) or about 0.5 to about 2.5 percent (UF/DF retentate). After adding lactic acid and salt, the UF or UF/DF retentate is subject to an evaporation step to form a precheese. The resulting precheese has a total solid content of about 30 to about 70 percent. The precheese, with added flavorants and other additives (including, for example, emulsifying salts) is then subject to conventional cheese processing conditions in, for example, a laydown cooker. The resulting process cheese or process cheese-type product is ready for immediate packaging and does not require a separate curing step. The process cheese or process cheese-type product is similar in flavor and texture characteristics to conventional process cheeses.

Continuous manufacture of process cheese

In accordance with the method of the present invention for manufacture of low-fat cheese from skim milk, the fat level of milk is adjusted to less than about 1 percent to provide the low fat milk utilized in the method. The low fat milk is subjected to membrane treatment to provide a retentate. A lactic acid-producing culture and a coagulating enzyme are added to the retentate. The coagulating enzyme is added in a coagulating amount. The retentate is then fermented while subjecting the retentate to movement sufficient to prevent formation of a coagulum and to form curd particles having a size in the range of from about 3 to about 22 microns. After fermentation, the retentate is evaporated under turbulent conditions to provide a low-fat cheese having at least of about 50 percent solids.

Low fat cheese by evaporation of retentate

In accordance with the method of the present invention for manufacture of Swiss cheese from milk, the fat level of milk is standardized to about 3.5%. The milk is subjected to membrane processing by ultrafiltration and diafiltration to provide a retentate with particular characteristics. The retentate is then fermented with a particular blend of a coccus culture and a high level of a rod culture. The usual propionic acid-forming micro-organism, such as Propionibacterium shermannii, is used. The fermentation is desirably carried out at high temperatures to achieve the results of the invention. The fermented retentate is then evaporated to a solids level desired in the finished Swiss cheese, which is generally in the range of 35% to 41% moisture. The fermented and evaporated product is suitable for packing into containers to be cured and to provide Swiss cheese without further manipulation or treatment. The particular conditions are necessary to provide the desired Swiss cheese.

Method for manufacture of swiss cheese

In accordance with the present invention, Parmesan cheese is grated to provide a particulate Parmesan cheese. The grated Parmesan cheese is dried to a moisture level of from about 19% to about 24% by weight. Either before or after the drying step, disodium phosphate is blended with the grated Parmesan cheese. After a period of time, the disodium phosphate is dissolved into the grated Parmesan cheese. After dissolution of the disodium phosphate, the Parmesan cheese particles remain discrete and the Parmesan cheese particles resist agglomeration and oil-off even at moisture levels of from about 19% to about 24% and at temperatures higher than ambient.

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Glen Ellyn, IL, United States of America

Susan P Monckton