Proofformula · batch · cost
What's in it Price Buy — $39

You know your hydration to a tenth of a percent.

Do you know your margin? Proof scales your formulas, prints your production sheets, and tells you what every loaf actually costs — ingredients, labor, and overhead, not a guess and a round number.

One file. Works offline. Buy once, no subscription.

Try it on one of your batches

Ingredients per piece
With labor and 18% overhead
Margin per piece
Batch leaves you
The app does this for every formula you own, from percentages.

Most bakeries price on a feeling

Not because anyone is careless. Because the tools are a spreadsheet somebody built in a hurry and nobody has touched since.

The file only one person understands

Hidden columns, a broken reference in row 40, and a scaling formula that quietly assumes the old mixer. Nobody wants to be the one who breaks it.

Prices set three flour increases ago

Bulk flour moved. Butter moved a lot. The menu did not. Update one pantry price in Proof and every formula that uses it recosts on the spot.

Labor that never lands in the number

Food cost percentage flatters bread and punishes pastry. Proof loads wage and overhead into cost per piece, so the margin you see is the margin you keep.

What's in it

Everything runs off baker's percentages, the way you already write formulas.

Percentages that handle preferments

A 100% hydration levain counts as half flour and half water, so hydration stays true and the flour total still checks to 100%. Butter contributes its 16% water. Eggs their 75%.

Scale three ways

By total flour, by total dough, or by pieces times scaling weight, with bake loss carried through to finished weight.

Water temperature

Three or four factor, with a friction factor you set per formula. Hit your DDT in winter and in August.

Cost that includes the baker

A shared pantry prices every formula at once. Add hands-on minutes, wage, and an overhead percentage, and get loaded cost per piece, margin, and a price at your target.

Production sheets that print

Stage by stage weights with tick boxes, method with timings, and a record block for dough temp, bulk, yield, and sign-off. One page, clean.

Grams, ounces, or pounds

Switch the whole app, including pantry prices, between $/kg and $/lb.

Bring the formulas you already have

Import a CSV straight out of your spreadsheet — formulas or just ingredient prices. Two starter templates come with the download, so you are not retyping anything.

Your data stays yours

Everything is stored on your own machine. Export the lot to a file whenever you want, and import it on another computer.

This comes out of the printer

Hand it to whoever is on bread. Nothing to interpret.

Ciabatta — biga

Bread · production
Total dough2,520 g
Pieces6 × 420 g
Hydration74.0%
Water temp64°F
Ingredient cost$4.04
Preferment
Bread flour40565
Water26367
Instant yeast0.050.7
Stage total932
Final dough
Bread flour60847
Water48677
Fine sea salt2.231
Instant yeast0.34.2
Olive oil228
Stage total1,588

Built by someone who scaled the batch, not just the software

I spent over 17 years in bakery production, R&D, and operations before I wrote a line of this. I have costed formulas on the back of a mixer sheet, rewritten production standards nobody was following, and argued about whether the croissant was making money.

Proof is the tool I spent all of those years wishing someone would build. It does the arithmetic bakers actually do, in the notation bakers actually use, and it does not try to become your POS, your inventory system, or your accountant.

Blair Van Sant — Staten Island, New York

Bakery production, R&D, and operations managementIncluding compliance and standard operating procedure work
Institute of Culinary EducationCulinary and pastry training
Nashville Software SchoolFull stack software development

One price, and it stays one price

$39 once
  • The full app, as a single file you download and keep
  • Unlimited formulas and unlimited pantry ingredients
  • Runs offline in any modern browser, on any machine you own
  • Free updates for a year
  • Thirty day refund, no explanation needed

What it isn't. There are no accounts and no cloud sync — your formulas live in the browser on the machine you open the file with, and you back them up with Export. It does not connect to a POS, track inventory, or order flour. If you need a bakery ERP, this is not that, and it is not priced like that either.

Questions

Will it run on the computer in the bakery?

If it has Chrome, Safari, Edge, or Firefox from the last few years, yes. Mac, Windows, iPad, Android tablet. No install, no account, no internet needed after you download it.

Can I move my formulas between machines?

Export writes a single file with every formula and your whole pantry. Import reads it back. That is also your backup, and I would keep one.

Do I have to enter formulas as percentages?

You can type weights instead and Proof works the percentage out for you, using your flour total as the basis.

What about ounces and pounds?

Switch units at the top and everything follows, including pantry prices, which move between dollars per kilo and dollars per pound.

Does it handle a levain or a poolish correctly?

Yes. You tell the pantry what fraction of the preferment is flour and what fraction is water, and hydration, flour total, and salt percentage all account for it.

What if it isn't for me?

Email within thirty days and you get your money back. You keep the file; I am not going to chase you for it.