In terms of precision, cooking is a spectrum. There are instances where eyeballing is sufficient — such as deglazing a pan with roughly half a cup of wine — and there are instances where accurate measurements are vital — such as in baking finicky pastry or most recipes from Serious Eats.
Tagged With measuring cups
Baking is basically edible chemistry, which makes precise measuring super important. To make sure you're armed with the most accurate measuring cups around, Cook's Illustrated tested a whole bunch to find the best.