Gear guide
Best kitchen scale for sourdough
Every number on this site is a weight, not a volume — so the scale is the one tool you genuinely can’t skip. The good news: the right one is cheap, and only two specs really matter.
The short answer: Get a scale with 0.1 g precision (so salt and starter are accurate) and 3–5 kg capacity (so it holds a full bowl of dough), plus a reliable tare and no aggressive auto-off. One scale that does both ends of the range is all you need.
What actually matters
- 1. 0.1 g precision
Flour and water tolerate 1 g, but salt (8–10 g) and starter feeds don't. 0.1 g resolution is what makes a small levain repeatable. Check it resolves 0.1 g across the range, not just at the bottom.
- 2. Capacity (3–5 kg)
You weigh cumulatively into the bowl, and the bowl counts too. 5 kg gives headroom for a full or double dough without maxing out.
- 3. Tare / zero
You'll hit tare a dozen times per loaf — add flour, zero, add water, zero. A responsive, reliable tare button is used more than any other feature.
- 4. No aggressive auto-off
A scale that powers down mid-weigh while you slowly stream water is maddening. Look for a long or disable-able auto-off and a display you can read past a wide bowl.
What to skip: “smart” app-connected scales (you don’t need Bluetooth to weigh flour), tiny jewelry scales as your only scale (no capacity for dough), and anything that hides its real resolution. Precision + capacity + a good tare is the whole list.
The picks
- Best overall0.1 g precision baking scale (3–5 kg)
The sweet spot for sourdough: 0.1 g resolution so you can weigh 8 g of salt or a few grams of starter accurately, plus a 3–5 kg capacity that holds a full bowl of flour and water. One scale that does both the tiny and the large weights is all most bakers ever need.
Watch out: Many cheap scales claim 0.1 g but only resolve to 1 g above a low threshold — check the spec lists 0.1 g across the range you'll use.
Compare on Amazon → - Best for starter & salt accuracy0.1 g pocket / precision scale
If your main scale only does 1 g, a small 0.1 g scale is the cheap fix for the weights that actually need precision — salt, a starter feed, a tiny levain build. Pair it with a higher-capacity scale for the dough itself.
Watch out: Low max capacity (often 500 g–1 kg) — not for weighing a full dough, only the small stuff.
Compare on Amazon → - Best for bowls & easy cleanupFlat / tempered-glass platform scale
A slim, flat platform takes a wide mixing bowl without tipping and wipes clean of flour dust in a second. The practical everyday choice if you weigh straight into a big bowl and want easy cleanup.
Compare on Amazon → - Best low-cost startBudget 1 g kitchen scale
If you're only weighing flour, water, and dough — where 1 g is fine — a basic 1 g / 5 kg scale gets you baking by baker's percentage today for very little. Add a 0.1 g scale later when you want precise salt and starter.
Watch out: 1 g resolution is too coarse for small salt/starter weights; round-off adds up in a small levain.
Compare on Amazon →
As an Amazon Associate, SourdoughHydration earns from qualifying purchases at no extra cost to you. More on how this is funded.
🎧 The math the scale makes possibleA scale unlocks baker’s percentage; the books explain what to do with it. Maurizio Leo’s The Perfect Loaf and Ken Forkish’s Flour Water Salt Yeast both teach by weight, and a free Audible trial gets you one to listen to while you bake.
Start a free Audible trial →
Common questions
What kitchen scale is best for sourdough?
One that does both ends of the range: 0.1 g resolution for small weights (salt, starter, levain) and 3–5 kg capacity for a full bowl of dough. A single scale that covers both is ideal; if yours only resolves to 1 g, add an inexpensive 0.1 g pocket scale for the small stuff. Precision plus enough capacity, with a reliable tare, beats any other feature.
Do I really need 0.1 g precision?
For flour and water, 1 g is fine. For salt, starter, and small levain builds it matters: a loaf might use 8–10 g of salt, and being off by a gram or two changes flavour and fermentation noticeably; rounding a 20 g starter feed throws off your ratios. If you want repeatable loaves, 0.1 g on the small weights is worth it.
Why does sourdough use grams instead of cups?
Because a cup of flour can vary by 20% or more depending on how it's scooped, while 500 grams is always 500 grams. Baker's percentage — the system every recipe on this site uses — expresses water, salt, and starter as a percentage of flour weight, which only works if everything is weighed. Switching from cups to a scale is the single biggest jump in consistency a home baker can make.
What capacity do I need to weigh a whole dough?
Aim for at least 3 kg, ideally 5 kg. A standard loaf is ~1 kg of dough, but you weigh it cumulatively in the bowl (flour, then water, then more) and the bowl itself counts against capacity. A 5 kg max gives comfortable headroom for double batches.
What scale features actually annoy bakers?
Aggressive auto-off is the worst — a scale that powers down mid-weigh while you're slowly adding water forces you to start over. Look for a long (or disable-able) auto-off. Also useful: a clear backlit display you can read past a wide bowl, a responsive tare/zero button, and a flat surface that takes a big bowl without tipping.
Got the scale? Put it to work
The scale makes the math possible. Here’s the math — and the rest of the kit.