Gear Guide
Best Scale for Sourdough: How to Choose a Digital Kitchen Scale
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If you only buy one tool for sourdough, make it a digital kitchen scale. It costs less than almost any other piece of baking equipment, and it does more to improve consistency than anything else. Every reliable sourdough recipe is written in grams for a reason: weight is precise, and volume isn't.
This guide explains why a scale matters so much, which features to look for, when it's worth adding a small precision scale, and how to use baker's percentages to scale recipes up and down.
A note on how we recommend: we haven't run our own accuracy tests on scales. Recommendations are based on features, manufacturer specifications and widely shared experience from home bakers. Always check the current listing for capacity, precision and price.
Why weigh instead of using cups?
A "cup of flour" can vary a lot depending on whether you scoop, spoon, pack or sift it. Water and starter are hard to measure accurately by volume too. Small differences add up:
- Hydration changes. Too much flour makes dough stiff and dense; too little makes it slack and hard to shape.
- Starter feeding becomes inconsistent. Your starter's thickness and activity shift from day to day, making it harder to predict.
- You can't troubleshoot. If you don't know exactly what went into a loaf, you can't tell what to change next time.
Weighing everything means each bake is repeatable, so you can make one change at a time and actually learn from it. When troubleshooting dense sourdough or a starter that won't rise, accurate weights are the first step.
What to look for
1. Capacity
The scale needs to weigh everything at once, including the bowl. A large mixing bowl can be heavy on its own. A capacity of around 5 kg (11 lb) or more is a common recommendation for home bread baking, and more is helpful if you bake large batches or use a heavy bowl.
2. Precision (readability)
Most kitchen scales read in 1 g increments, which is fine for flour, water and starter. Salt, yeast and some add-ins are used in small amounts, where a gram or two makes a noticeable difference. For those, a scale that reads to 0.1 g is more useful (see "precision pocket scale" below).
Check the listed readability, and note that many scales are less precise at very low weights.
3. Tare function
The tare button resets the display to zero, so you can place a bowl on the scale, zero it, add flour, zero again, add water, and so on. Every useful kitchen scale has it, but a responsive, clearly labeled button makes life easier.
4. Display and platform size
- A large, backlit display is easier to read when a big bowl hangs over the edge.
- A large platform keeps wide bowls stable.
- Some scales have a pull-out or angled display that's easier to see under a bowl.
5. Units
Look for grams as a minimum. Ounces and pounds are handy for US recipes. Some scales include a baker's percentage mode.
6. Auto-off timer
Many scales turn themselves off to save battery. That can be frustrating mid-recipe if it happens too quickly. Look for a long auto-off delay or the option to disable it.
7. Power and cleaning
Rechargeable scales avoid buying batteries. A flat, sealed surface is easier to wipe clean of flour and dough.
Main types of scale
| Type | Typical precision | Typical capacity | Best for |
|---|---|---|---|
| Standard digital kitchen scale | 1 g | Several kg | Flour, water, starter, dough |
| Baker's scale with percentage mode | 1 g (some 0.1 g at low weights) | Several kg | Bakers using baker's percentages |
| Precision pocket scale | 0.01 to 0.1 g | Small (often a few hundred grams) | Salt, yeast, spices, small additions |
| Coffee scale with timer | 0.1 g | Moderate | Small-batch baking, also coffee |
Our picks by type
Best for most bakers: a standard digital kitchen scale
Who it suits: almost everyone starting out.
A simple digital scale with a capacity of around 5 kg, 1 g increments, tare and a clear display covers almost every sourdough task.
- Pros: inexpensive, widely available, all you need for feeding and mixing.
- Cons: less precise for small quantities like salt.
Best upgrade: a baker's scale with percentage mode
Who it suits: bakers who like to experiment with hydration and formulas.
Some scales offer a baker's percentage mode, which calculates ingredient weights relative to the flour. Escali and My Weigh are among the brands known for bakery-oriented scales. Check the listing to confirm features.
- Pros: makes scaling formulas easier, often larger capacity.
- Cons: more features than a beginner needs.
Check a baker's percentage scale
Best add-on: a precision pocket scale
Who it suits: anyone who wants accurate salt and small additions.
A small scale reading to 0.1 g or 0.01 g makes salt measurements consistent. It's not a replacement for a kitchen scale because capacity is low.
- Pros: inexpensive, tiny, very precise for small amounts.
- Cons: low capacity; can be sensitive to drafts.
Check a precision pocket scale
Best dual-purpose: a coffee scale
Who it suits: bakers who also brew pour-over coffee.
Coffee scales often read to 0.1 g and include a timer. Capacity can be limited, so check it handles your bowl and dough.
Check a coffee scale with timer
How to use baker's percentages
Baker's percentages express every ingredient as a percentage of the total flour weight. Flour is always 100%.
Example formula:
- Flour: 100%
- Water: 75%
- Starter: 20%
- Salt: 2%
For 500 g of flour:
- Water: 500 × 0.75 = 375 g
- Starter: 500 × 0.20 = 100 g
- Salt: 500 × 0.02 = 10 g
To scale up to 800 g of flour, multiply each percentage by 800. This is why a scale and grams make sourdough so much easier: you can adjust any recipe precisely.
Using a scale for your starter
- Place a clean jar on the scale and tare it.
- Add the amount of starter you're keeping.
- Tare, then add flour.
- Tare, then add water.
- Stir, scrape down and mark the level.
Write down your jar's empty weight so you can see how much starter you have at any time. For more on the tools you need for a starter, see our sourdough starter kit guide.
Accuracy tips
- Place the scale on a flat, hard surface. Soft or uneven surfaces affect readings.
- Check it occasionally with something of known weight, such as a calibration weight or a sealed packet with a stated weight.
- Replace batteries when the display dims; low power can cause errors.
- Avoid overloading beyond the stated capacity.
- Keep it away from heat such as a hot pot or the stove.
Mistakes to avoid when weighing
Even with a good scale, a few habits can throw off your measurements:
- Forgetting to tare. It's easy to add flour on top of a bowl weight you didn't zero. Get into the habit of pressing tare and checking the display reads zero before every ingredient.
- Pouring too fast. Pour flour and water slowly near the target weight. Many scales take a moment to settle, so a quick pour can overshoot.
- Weighing tiny amounts on a big scale. A kitchen scale that reads in 1 g steps can't measure 2 g of salt accurately. Use a precision scale for small quantities.
- Leaning on the counter. Pressure on a nearby surface or a bowl touching something else can change the reading.
- Letting it switch off mid-recipe. If your scale turns off with a bowl on it, the tare is lost. Note the running total as you go, or choose a scale with a long auto-off delay.
Keep a simple notebook or phone note with each bake's weights, timings and room temperature. Combined with an accurate scale, that record is the fastest way to work out what produces your best loaves.
Frequently asked questions
Do I really need a scale for sourdough?
Not strictly, but it makes a huge difference. Weighing ingredients makes each bake repeatable, which is the fastest way to improve and troubleshoot.
What precision do I need for a sourdough scale?
1 g increments are fine for flour, water and starter. For salt and other small additions, a scale reading to 0.1 g is more accurate.
What capacity should a bread scale have?
Enough to weigh your heaviest bowl plus all the dough. Around 5 kg is a common recommendation for home bakers.
Can I use a coffee scale for bread?
Yes, if its capacity is high enough for your bowl and dough. Coffee scales are precise but sometimes limited in capacity.
How do I calibrate a kitchen scale?
Follow the manufacturer's instructions. Many scales have a calibration mode that uses a specific test weight. You can also check accuracy with an item of known weight.
The bottom line
The best scale for sourdough is a simple digital kitchen scale with about 5 kg capacity, 1 g increments, tare and a clear display. Add a 0.1 g pocket scale for salt if you want more precision. Weigh everything, write it down, and your loaves will become far more consistent.