How to use Caustic Soda to make Pretzels? ( Sodium Hydroxide ) First and foremost you must take some important safety precautions. Use latex gloves and safety glasses when using caustic Soda. Usage can range from 3-6 % for normal traditional pretzels. You can increases usage for a more intense darker color of the crust. Caustic Soda as known as Sodium hydroxide or lye is used to make pretzels. It gives the pretzels it’s distinctive dark brown color. This is because the alkaline reacts with the simple sugars and amino acids in the dough resulting in this effect. The browning or caramelization is also referred to Mailard reaction.
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