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Why add baking soda to soup just before serving?

I have a cream of tomato soup recipe that calls for assembling everything then holding the soup in a double broiler until ready to serve....Then at that point adding a pinch of baking soda & some milk just before serving. Why would this be? What is the baking soda doing?

asked by usclious over 2 years ago

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4 answers 4347 views
cv
cv
added over 2 years ago

It keeps the milk from curdling.

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cv
cv
added over 2 years ago

Source: Fannie Farmer cookbook (1996 centennial edition)

https://books.google.com...

Note that the baking soda has always been present in this recipe, dating back to the original 1896 edition. The head note explaining the baking soda's action appeared more recently.

LE BEC FIN
added over 2 years ago

well if that isn't the darndest! Who knew?.............

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Sam1148
Sam1148

Sam is a trusted home cook.

added over 2 years ago

A pinch of baking also rounds out a tomato sauce that's a bit to acidic.
It's also a trick used for sweet iced tea to smooth out a bitter tea.

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