the.com/sour

your tongue's smoke alarm, screaming acid before it can wreck your teeth

means Having a sharp, acidic taste like vinegar or lemon, or by extension turning unpleasant, bitter, or spoiled in mood, milk, or relationships.

from From Old English 'sūr,' meaning acid or tart, with deep Germanic roots — cousins survive in German 'sauer' (think Sauerkraut, literally 'sour cabbage') and Dutch 'zuur.' The whole family likely traces back to a Proto-Indo-European root suggesting something acid or moist. The taste sense came first; the metaphorical 'sour mood' and 'gone sour' senses are later sourings of the same word.

acid detector
Sour taste literally measures hydrogen ions on the tongue
warning system
Evolved to flag unripe fruit and spoiled food
face reflex
The sour pucker is hardwired even in newborns
saliva trigger
Sourness sparks the biggest spit response of any taste
craved hard
Kids tolerate far more sour than adults can stomach
for instance

sourdough bread — san francisco's signature fermented bread, made with wild yeast starter for 150+ years

sour candy — warheads extreme sour candy, measures 9+ on sour intensity scale

sour cherry — montmorency sour cherry, grown in michigan producing 250+ million pounds annually

sour cream — cultured dairy product with lactic acid, staple in eastern european and american cuisines

the.com · every word