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Baking Science
4 min read
How to Scale a Sourdough Pizza Recipe Up or Down Without Ruining It
Scaling a sourdough pizza recipe for a crowd — or just for two? Here's how to do it properly without throwing off your dough or your timings.
Photo by Tejash Shah on UnsplashSummer outdoor pizza is one of those things that sounds effortless until you actually try to pull it off. You've got a recipe that reliably makes two great pizzas, and suddenly you've got eight people coming round on a Saturday evening. So you think: I'll just multiply everything by four. Simple.
Except it isn't, quite. Scaling a sourdough pizza recipe isn't like doubling a cake mix. The dough is a living system, and when you change the quantities, a few other things shift with it. Get your head around those shifts and you'll be turning out a full spread of perfectly proofed bases without breaking a sweat. Here's what you actually need to know.
Baker's percentages are your anchor point
Before you scale anything, make sure your recipe is written in baker's percentages rather than fixed grams. This means every ingredient is expressed as a percentage of the total flour weight. Once you have that, scaling is just a matter of changing the flour target and letting everything else follow.
If your recipe is only written in grams, convert it first. It takes five minutes and it means you'll never have to reverse-engineer a recipe again. The baker's percentage calculator on DoughRise makes this straightforward if you'd rather not do the arithmetic by hand.
Top Tip
Always calculate your scaled recipe the night before. Writing it out fresh when you're prepping dough for eight people at 9am on a Saturday is how mistakes happen.
Your starter percentage stays fixed , but your timing might shift
One thing that catches people out when scaling up is assuming they just need more starter. You do, proportionally, but the percentage stays the same. If your recipe calls for 3% levain by flour weight, a batch four times the size still uses 3%. The ratio is what matters, not the absolute amount.
What can shift, though, is how the dough behaves in bulk. A larger mass of dough retains heat slightly better than a small one, which means fermentation can move a little faster than you'd expect, especially in the middle of a warm July. Keep an eye on it rather than going purely by the clock. If anything, scale-up bakes in summer need a bit more attention, not less.
Don't scale your water temperature with the quantity
This is a small thing but it matters. The water temperature you use to hit your target dough temperature doesn't change based on how much dough you're making. It changes based on your ambient temperature, your flour temperature, and your starter temperature. Those inputs are the same whether you're making two dough balls or twelve. Don't overthink this one , just use the same process you'd normally use for getting your dough to around 24 to 26 degrees Celsius on a warm day.
Dough balls: give them room and keep them consistent
Once you've divided and shaped your dough balls, they need space. A batch of ten pizza dough balls crammed into a tray will proof unevenly at the edges versus the middle. Use a full-size dough tray if you have one, or split across two trays. Consistent sizing also matters here , if some balls are 240g and others are 280g, they'll be at different stages of proof by the time you start cooking, which makes timing the evening genuinely tricky.
Common Mistakes
- Multiplying grams without converting to baker's percentages first, then losing track of what changed
- Assuming a larger batch will behave identically in bulk , it usually ferments slightly faster
- Dividing dough balls by eye rather than by weight, leading to uneven proofing across the batch
- Forgetting to account for the extra time it takes to stretch and top multiple pizzas , your last few balls will over-proof if you're not quick
- Using the same container size for a scaled-up batch, then wondering why the dough has nowhere to expand
Keep a record of what you did
The other thing about scaling up is that when it goes well, you'll want to repeat it. When it doesn't, you'll want to know what to adjust. Writing notes in the moment is easy to skip when you're in the middle of cooking for a crowd, but it's genuinely the fastest way to get better at this. If you're doing these bigger bakes regularly, DoughRise Pro lets you save unlimited custom formulas and keeps a full bake history, which makes iterating on a scaled recipe a lot more manageable than hunting through a notes app for what you did three Saturdays ago.
Scaling sourdough pizza for a group takes a bit more thought than tripling a pasta recipe, but once you've done it once and paid attention along the way, it becomes second nature. Head over to doughrise.store for more practical guides, calculators, and everything else you need to bake with a bit more confidence this summer.
Happy baking! Find everything you need at doughrise.store
Photo by Tejash Shah on Unsplash
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