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Today on 'word combinations I really never expected to read, but okay, yeah, that makes sense':
"food-grade lye"
I had read somewhere ages ago that proper soft pretzels are made with a lye solution applied to the outside to produce the right exterior texture. It had not occurred to me that you would need, or have, a specific formulation of lye for this process; I tend to think of lye purely in a soapmaking context, or else a drain-clearing one. But yeah. Food grade lye makes sense.
"food-grade lye"
I had read somewhere ages ago that proper soft pretzels are made with a lye solution applied to the outside to produce the right exterior texture. It had not occurred to me that you would need, or have, a specific formulation of lye for this process; I tend to think of lye purely in a soapmaking context, or else a drain-clearing one. But yeah. Food grade lye makes sense.