The formula difference is sodium bicarbonate for baking and sodium carbonate for washing, yaar—heat baking soda gently and it becomes washing soda, but heat washing soda and it just sits there stubbornly. I learned this the hard way when I tried to bake roti with washing soda, thinking ‘bas, same white powder.’ My poor Amma still teases me about the soapy-tasting disaster that even the neighbor's cow refused to eat!
#cooking#regional-cuisine
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