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Pasteurization is the process of heating liquids, such as milk, to destroy microorganisms that can cause spoilage and disease. This process was developed by Louis Pasteur (1822-1895) as a method to control the microbial contamination of wine. Pasteurization is commonly used to kill pathogenic bacteria, such as Mycobacterium, Brucella, Salmonella, and Streptococcus, common to milk and other beverages. There are three methods for pasteurizing milk. In the first method, low-temperature holding (LTH), milk is heated to 145°F (62.8°C) for thirty minutes. In the second method, high-temperature short-time (HTST), milk is exposed to a temperature of 161°F (71.7°C) for fifteen seconds. This technique is also known as flash pasteurization. The most recent method allows milk to be treated at 286°F (141°C) for two seconds; this approach is referred to as ultra-high temperature (UHT) processing. Shorter-term processing results in improved flavor and extended product shelf life.
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What are the two methods for rejecting heat from refrigerated cases?
The two methods for rejecting heat from refrigerated cases are Air cooled condensing units and Closed circuit coolers.
Which two methods of heat transfer are possible with liquids which of the two has greater effect?
The two methods of heat transfer possible with liquids are conduction and convection. Convection generally has a greater effect on heat transfer in liquids compared to conduction, as it involves the movement of the liquid itself, helping to distribute heat more efficiently.
What alternative methods are used to treat back disorders?
Two alternative methods of treating back disorders that have been shown to help many patients are acupuncture and chiropractic.
Which two methods of heat transfers are possible with liquids?
Coduction and convection.
Hich two methods of heat transfer are possible with liquids which of the two has greater effect?
radiation
What are the two approved methods of sanitization?
heat and chemical
What two cooking methods rely on infrared heat?
Laura Garner is the best
Does ice melt faster in water or milk?
Ice will melt faster in water than in milk due to the difference in thermal conductivity and specific heat capacity of the two liquids. Water has a higher thermal conductivity and specific heat capacity compared to milk, allowing it to transfer heat more efficiently to the ice and melt it faster.
What are two methods used to evaporate condensate from the evaporator?
By using the heat from the discharge line and a slinger ring on the condenser fan.
Why won't a cow get up after giving birth?
There's one of two things: nerve damage that prevents her rear legs from functioning properly, or she has milk fever. For treating cases of paralysis in her, see the related question below. If she has milk fever, get the veterinarian out NOW.
What are the two properties that matter most when comparing the effectiveness of cooling methods?
Your choice between two cooling devices will initially be influenced by 'how much heat you wish to transfer?', and 'at what temperature is that heat?'. Only then will you be able to proceed further.
How does warming a bottle of milk on the stove involve both conduction and convection?
Warming a bottle of milk on the stove involves conduction as the heat is transferred directly from the stove to the bottle. Convection also plays a role as the warmer liquid milk near the bottom of the bottle rises, displacing the cooler milk at the top, creating a circulation pattern that helps to distribute the heat more evenly.
