the.com/curd

milk's mid-life crisis, where liquid commits to becoming something with opinions

means The soft, solid lumps that form when milk sours or is treated with rennet, separating from the watery whey and going on to become cheese.

from An English word of murky parentage — it shows up in Middle English as 'crud,' and the modern 'curd' is thought to be a metathesis, where the 'r' and 'u/d' swapped places (the same shuffle that turned 'brid' into 'bird'). 'Crud' as in grime is the very same word, which is why curdled milk and crusty filth share a surprisingly intimate family tree. Beyond Middle English the trail goes cold; it may be related to an Old Irish word for 'milk porridge,' but that link is suggested rather than settled.

the split
forms when acid or rennet makes proteins clump together
rennet source
traditionally enzymes from a calf's stomach lining
cheese origin
every cheese on earth starts as curd
the squeak
fresh cheese curds squeak against your teeth
little miss muffet
the nursery rhyme villain ate curds and whey
for instance

paneer — indian fresh cheese made by curdling milk, primary ingredient in thousands of indian dishes

cottage cheese — american curdled milk product, common in 1950s-70s diet culture and still widely consumed

ricotta — italian whey curd cheese, made from the byproduct of mozzarella production

quark — german and eastern european fresh curd cheese, used in both sweet and savory dishes since medieval times

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