Rescues · TO WEIGH
A converted recipe comes out wrong.
Why it happens
A generic cup-to-gram conversion was used. Density is per ingredient — a cup of flour is 125 g, a cup of honey is 340 g.
Recovering it
An over-addition caught immediately can often be spooned back out if it landed on top of a dry pile. Once liquids are in, the only clean fix is to scale everything else up to match — which is easy if you are working in ratios and painful if you are not. That is the underlying argument for weighing: not that it is more precise in the moment, but that it makes mistakes correctable.
The mechanism
Mass does not depend on packing, humidity or how the cup was filled, so it is the only measurement that makes a recipe reproducible. It also unlocks ratio thinking, which is how professional baking actually works: expressing every ingredient as a percentage of the flour weight — baker's percentage — means a formula scales to any quantity without arithmetic errors, and two recipes can be compared directly. A dough at 70% hydration is a known thing; a dough with 'three cups of flour and a cup and a half of water' is not, because nobody knows how much flour that was. Weighing also removes an entire class of failure in bread and pastry, where a ten percent error in hydration is the difference between a slack dough and a stiff one.
The full TO WEIGH lesson — how to tell, where to practise it, what it carries to.