taste might be defined wrong taste is not your sensoric input on your tongue taste is a combination of this with smell and visual (eg. color), but also mood,

taste might be defined wrong taste is not your sensoric input on your tongue taste is a combination of this with smell and visual (eg. color), but also mood, expectation, environment, time, stresslevel, atmosphere, temperature, viscosity and people around. with this in mind, the exact same thing can taste like 100 times differently without changing the chemical side.