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Q: What temperature in cooling foods must reach as first stage?
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What temperature should the foods in the reach-in be?

Below 40 degrees f.


How much shade does it take to change the temperature?

There is no straight forward answer for this, Newton described this in his Law of Cooling. The rate of cooling (change in temperature) is proportional to the difference in temperature. Here is an example, let's say you shade a area on the ground, when you remove the shade and expose it to the sun, the rate of cooling will be rapid at first because the difference between the shaded area and the sun's radiative temperature are greatest. Then the temperature will begin to level off as the two temperatures begin to reach an equilibrium.


How can water in an engine stay a liquid when the temperature is above its normal boiling point?

The cooling system is pressurized and requires a higher temperature to reach boiling.


What is auto cascade system?

A cooling/freezing system using one compressor and 2 or more different gasses and heat exchangers to reach a lower temperature, the first refrigerant cools the next and so on.


How do you know if the radiator fans are working on a 2003 Chevrolet Impala?

The engine temperature must reach 232-235 degrees in order for the cooling fans to come on. They will shut off at about 195-200 degrees. Also when the air conditioner is on the cooling fans automatically come on regardless of temperature.


What would make the coolant reach operating temperature then drop and not reach temperature again?

Always try simple first...thermostat is probably stuck open...cheap and easy replacement.


What are the proper temperatures for serving hot and cold foods?

serving hot food has to reach core temperature of at least 57 C in order to kill most of the pathogenic organisms while serving cold food temperature be lowered to less than 5C as these two temperature values have been proven to be the critical points for reference for serving safe foods.


What is the normal operating temperature of a 2005 Chevrolet Impala?

Under normal conditions the thermostat opens at 195 degrees. The water temperature will reach between230 to 235 degrees and the cooling fan will come on and cool down to around 200 degrees and then shut off.


Why does a coolant have to travel through sealed pipes?

A few of the reasons: 1. So that the coolant does not leak out of the system. 2. So that the coolant can be made to circulate through the pipes (pressure is required). 3. So that Pressure can build up in the cooling system. This allows the coolant to reach a higher temperature before boiling. Once at its boiling point, the temperature will not rise, and additional cooling is inhibited.


What will happen if the body temperature of a human reach 45degrees?

Surrounding temperature, or body temperature? The latter is not compatible with life. The former only if enough cooling by evaporation of sweat is possible.


What is a boardinghouse reach?

A boardinghouse reach is the ability to reach a long distance across a table in order to get desired foods, or the action of a person who is reaching to get desired foods, often considered to be poor etiquette.


Why do hot water make ice me lt?

Hot water has much heat to transfer to the ice, cooling itself down and melting the ice. Temperature difference is the driving force of this, heat always going from high to lower temperature. When both (remaining) water and (remaining) ice reach the same temperature heat exchange will stop.