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(Redirected from Cheddaring)

Cheddar is the quintessentially the most English cheese, and may be the most common type in the world. Originally made in a Somersetshire village, England, its manufacture has spread around the world.
As a result the name has become generic. The process of cheddaring makes cheddar unique when compared to other cheeses.

Food ingredients used during manufacture
Milk
Generally, the milk is raw milk (whole or 3.3%). The milk must be “ripened” before adding in the rennet (see below). The term ripening here means allowing the lactic acid bacteria to lower the pH of the solution, which aids greatly in the coagulation of the milk.
Lactic acid bacteria
Lactic acid bacteria (LAB) are responsible for turning lactose into lactic acid, thereby reducing the pH of the solution. When the pH is lower, the protein is more easily precipitated. This is vital for the production of cheese curds that are later formed into cheddar.
Rennet/chymosin/rennin
Rennet is an enzyme that is collected from the stomach of a milk-fed calf. In more recent years, this enzyme is commonly produced by using modified bacteria and has adopted the name Chymosin and Rennin. This enzyme is responsible for the coagulation of the milk proteins to produce curds. Coagulation can also be achieved using acids, but the resulting cheddar will not be as high quality.
Equipment

400 pounds of milk in a pilot scale cheese vat
This is not a comprehensive list of equipment, but includes some of the less mundane items commonly used in cheddar cheese making operations
Stainless steel wire knivesThese knives are used to uniformly cut the curds at various points during the process. Basically a stainless steel frame with stainless steel wires, that will cut the curd cleanly.
VatVats will vary depending on a variety of factors. Generally oval or rectangle shaped with hollow walls that are used for holding warm water to keep the curds at desired temperatures. This part of the vat is referred to as the jacket.
Milling machineA milling machine is used to cut the matted curds that are formed during the cheddaring process. This allows the curds to be easily salted.
Add rennet
Generally 34 ounces of rennet are added per 1000 pounds of mix. The rennet will serve to coagulate the milk protein and form curds. The vat must be mixed thoroughly after the addition of the rennet to ensure equal mixing, and it also helps to dilute the rennet to make it easier to spread around.
Pure water is used when diluting the rennet as any pH that is not near 7 will rapidly decrease the effectiveness of the rennet, as will chlorine. Thus, water with impurities will result in a vastly decreased yield of cheese.
Setting the curd

Testing of curd setting
Once the rennet is added, the mixture must be allowed to set and form curds. The mixture is kept at around 29-31 degrees Celsius (8488 degrees Fahrenheit). Generally temperature is controlled by flowing warm water through the jacket of the vat. Setting time varies, and allowing a proper amount of time is vital. It commonly takes anywhere from 3040 minutes to set the curd.
The most common way to determine when the curd is set is by inserting a flat blade at a 45 degree angle into the curd and raising it slowly. If the curd breaks cleanly leaving a glassy fracture, it is ready for cutting. In a large cheddar manufacturing facility, this may also be tested using a viscometer.
Cutting the curd

Cutting of the curds after setting
The curd is cut into 0.63 cm to 1.59 cm (1/4 to 5/8 inch) cubes using stainless steel wire knives. A smaller cube size means the cheese will be lower moisture whereas a larger cube size will result in a high moisture cheese.
It is important that cutting time is minimized and that the cuts be clean. The best way to determine how efficient the cutting job was is to determine the fat content of the whey. The optimal level of fat content of whey is .3% fat or less.
The curds are handled gently after cutting to prevent fat and protein loss to the whey. The curd is prevented from sticking to the sides of the vat, but minimal agitation is desired. The curds are allowed to set again for 1015 minutes. Fat and protein loss may affect the ability for the cheese to be considered cheddar cheese depending on the region where it is…(and so on) To get More information , you can visit some products about Stainless Steel Tableware, stainless steel tray, . The ELECTRIC CERAMIC products should be show more here! 

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