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how does a pressure cooker work the
sound of a pressure cooker may be
startling but it is a call to you that
it is doing its job yes food will be
served soon there are two very important
things happening inside the chamber of a
pressure cooker stoolie and pressure a
combination of steam and pressure make
the pressure cooker the efficient
kitchen delight the two work together to
cook things in no time
one of the reasons we use water to cook
food is because it is a better conductor
of heat than air is you can raise the
temperature of water to transfer its
energy to the water in food basically
cooking it a pressure cooker increases
the pressure so that the water will come
to a boil higher than its regular
boiling point which is 100 degrees
Celsius but this is only half the reason
why it takes so little time to cook food
inside a pressure cooker the increased
pressure inside the cooker literally
forces the heat into the food think of
the pressure as an invisible hand
pushing the extra hot steam into the
very core of the food inside but if the
pressure is like a crushing hand then
why doesn't the food come out all
smashed well this is because the steam
applies uniform pressure to all the
surfaces of the food and that leaves the
food and smashed parts of a pressure
cooker a pressure cooker is made up of a
pot a lid which fits precisely on the
pot with a locking mechanism a rubber
ring that goes between the lid and the
pot so that no air can escape a vols on
top of the lid with a release whistle
there are two extremely important paths
in all pressure cookers the rubber ring
that goes between the pot and the lid
ensures that no air escape
from inside the container if it did then
the pressure would not be able to build
up the valve on the top is a safety
measure that makes sure the pressure
does not build up to dangerous levels
inside the pot this could lead to a
potentially dangerous explosion it is
designed to allow some of the steam to
escape after the pressure inside reaches
a certain point and with that startling
listen we know how much the food has
been cooked project ask your mom how
long different foods would take to cook
inside a pressure cooker ask her to tell
you in how many whistles not actual time
when she's cooking these different foods
see how long it actually takes here are
the names of some foods you can try 1
cup of rice 4 potatoes 1 cup of dull
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