When it goes wrong · Weigh
Small quantities read as zero or jump erratically.
Can you save it?
Reviewed for this symptom
Switch to measuring spoons for this ingredient — under about 5 g they are more accurate than a 1 g scale, not less. Alternatively weigh ten times the amount into a clean bowl and take a tenth by eye.
How to confirm the diagnosis
Observable cues, not inferred user state
- The display flickers between zero and a couple of grams
- The ingredient is yeast, salt, baking powder or a spice
- The scale's steps are 1 g
Not this?
- The total is wrong even though each addition looked right.
- Readings drift during a long mix.
- A converted recipe comes out wrong.
What actually happened
Only this symptom
Below the scale's resolution. Most domestic scales work in 1 g steps, which cannot resolve 2 g of yeast meaningfully.
The full mechanism
Shared by every weigh failure
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 Weigh lesson — how to tell, where to practise it, what it carries to.
Next time
Prevent this specific failure
Use spoons for yeast, salt and spices under 5 g, and a scale for everything above it.
What right looks like
Shared by every weigh failure
- The scale is tared with the bowl on it, then tared again after each addition — everything goes into one bowl and the number resets.
- Readings settle before you trust them; a scale still climbing has not finished.
- For anything under about 5 g the scale's resolution is the limit — that is where spoons are more accurate, not less.
- Hydration expressed as a percentage tells you what a dough will feel like before you touch it.