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Boiling point = temperature where the vapour pressure is equal to the pressure of the atmosphere above the liquid.

When you have a pressure cooker, the pressure above the water is higher than atmospheric pressure, therefore the boiling point of water is elevated to above the boiling point in an open pot. The water temperature exceeds 100 degrees Celsius, and thus the cooking process is accelerated.

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Q: What gas law could apply to how pressure cooker works?
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Is there a relationship between boiling and pressure?

Yes, there is. Higher pressure increases the boiling point and lower pressure decreases it. That is why a pressure cooker works and why water boils at lower temperatures in high altitudes.


Are pressure cooker dangerous?

The main danger in using a modern pressure cooker is being burned by steam.Modern pressure cookers have been re-engineered to eliminate the kitchen explosions of the past. They now have a number of safety features built in that prevent and release over pressure. But by the very nature of how a pressure cooker works there is still a slight chance of a steam burn occuring. Read the instruction manual and follow it and you shouldn't have any problems.


Why the boiling point of water in pressure cooker high?

A pressure cooker minimizes the escape of fluids or air. The build-up of air and fluid increases the pressure inside the cooker, which also increases the boiling point. An open kettle allows the fluid and air to escape, heat is lost thus cooking time is longer.


How does pressure affect the steaming process?

A pressure cooker speeds up cooking time. It works by holding some of the steam inside. This raises the temperature and forces the steam into the food so everything cooks faster.


What food cooks the fastest using a solar cooker?

A parabola solar cooker works the best and fastest


What gas law could apply to how refrigerator works?

convection currents


Where can you download instructions for tower 4300 pressure cooker?

I have a 4-quart SKY-LINE pressure cooker purchased in a mountaineering store in (probably) the early 1960. And yes, it still works very well. Unfortunately the rubber gasket that held the fusible plug has gone to the great kitchen in the sky. I have temporarily sealed the 5/8" hole with a rubber stopper, but that leaves only the pop-off valve to prevent over-pressurization. Can any one help me? John Geobuff@hotmail.com


How does solar cooker works?

it doesnt it just eats big toes


What happens to the boiling point when pressure increases in cooker?

It's higher-this is how a radiator works in a car. Since system pressurized boiling point above 212. Some cars fans don't even come on until they hit 220.


Why is cooking time reduced when using a pressure cooker?

A pressure cooker doesn't allow for anything (even gases) to escape at any significant amounts (unless the pressure inside gets too high and you hear that whistleing noise). With heat, the gases inside want to expand, but because they are restricted to the volume of the pressure cooker they can't, so pressure builds up. In addition, when a liquid, lets say water in this case, is heated under normal pressure its temperature won't go above 100C, because any water molecule that has higher energy leaves the liquid and goes into gas phase. Now, applying pressure to water, will increase the boiling point (for example from 100C to 110C) Reason: When any liquid is under higher pressure it is less likely to go in the gaseous phase. The pressure cooker works with these principles, because usually when you cook water in an open pot, the boiling point of water restricts the temperature to a 100C. A pressure cooker uses the pressure to keep the water in the liquid form even though it is far above the boiling point, and hence the temperature is far above 100C. Because the pressure build up inside causes higher cooking temperatures thus reducing cooking times.


What works best when trying to stop severe bleeding?

Apply firm pressure to the wound. Raise it above heart level if possible; this will slow the flow of blood.


How do you cook tamales in a pressure cooker?

Pressure cookers can be dangerous. You have to make sure the seal (gasket) is in good condition and that the valve is working if you are using one you got secondhand. There should be instruction manuals for many pressure cookers on the Internet.Basically pressure cookers build up heat because they are sealed so well. They cook food much faster than a normal pot - You can cook a roast in about 20 minutes. They are also used frequently in canning veggies and other nonacidic foods.There is a pressure gauge on the top. You have to let the pressure go down before opening the pot! Please don't use one until you know what you are doing or your least problem will be a huge mess.First inspect the pressure cooker tharoughly and ensure that there are no damages especially to the gasket and see that it is clean.Next, you also need to ensure that the vent pipe is open and clear for pressure cooker with weighted pressure regulator. Check recipe for specific cooking method and cooking time. If your recipe requires a rack place it to the bottom of the cooker.Add a 1/2 cup water to pot if you're using a cooker that has a weighted system. Add 1 cup for pressure cooker that uses valve system. This should be sufficient for 20 minutes of cooking time.Place the food on rack.With the weighted system cooker remove the regulator then close and secure the lid. The cover handle should be parallel to the body handle. Place the cooker on heat.Once the steam begins to exit the vent pipe, replace the regulator. The weight on top the lid will begin to rock once the cooker reaches cooking pressure.The valve system cooker has markings on the cooker that indicate the pressure levels. Once the indicator is at 15 PSI the cooker is at the standard cooking pressure.Now, lower the heat once the cooker is at the cooking pressure in order to maintain the pressure. Comeback and chek and adjust the heat setting periodically.Use the timer to time the recipe.Once the required time is passed, you can turn off the heat.Next, you need to release the pressure inside by allowing it to reduce on its own.Once the pressure is released the lid can be opened after the removing the regulator.Hope this helps.