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A BLOG TO PROVIDE INFORMATION ABOUT THE CHEMICAL ENGINEERING FIELDS AND ASSOCIATED SECTORS.

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Thursday, April 16, 2020

HOW THE AIR GETS INSIDE A POORI?




I believe there is no such thing as magic. Actually, no air is get into the Poori. It is just unexplained science lurking.
The Science of how the Poori magically inflates is actually very interesting. There is complex chemistry happening to create that magical puff.
Remember all the water we poured in the flour is to make the dough. That is ton of moisture content stored inside.
The moment the flat disc of dough touches the boiling oil, the moisture in the outermost layer evaporates and bubbles up and the outer surface hardens.
Few milliseconds later the moisture inside the disc of dough rapidly turns to steam, and it tries to escape, it exerts pressure on the outer surface which results in swelling (inflating).

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