Sourdough Starter Feeding Log & Feeding Calculator

Learn exactly how your starter behaves: hours to peak by temperature and ratio, plus exact feeding grams and when to feed.

The Sourdough Starter & Feeding Log is a spreadsheet and printable log for sourdough bakers. Log each feeding and it works out hours to peak, ratio and hydration. Insights show your starter's average peak time by room temperature and ratio, and the feeding calculator tells you the grams to feed and what time to feed so it peaks when you mix.

WHAT'S INCLUDED

- Sourdough Starter & Feeding Log (.xlsx), SAMPLE + BLANK versions

- Starter Feeding Log Sheet: PDF + editable DOCX

- Starter Care Card: PDF + editable DOCX

- Easy instructions PDF

Spreadsheet tabs:

- FEEDING CALCULATOR: starter needed + keep + extra, any ratio (1:1:1, 1:2:2, 1:5:5...), grams of starter, flour and water, hydration, and the time to feed

- FEEDING LOG: up to 500 feedings with time fed, grams, flour type, room temperature, peak time and rise %

- INSIGHTS: average hours to peak by temperature band and by ratio, total feedings, best rise and starter age

- SETTINGS: starter name, birthday and flour types

Works in Google Sheets and Excel (Google Sheets is free; Excel 2016+ or Microsoft 365). Printables come as PDF (ready to print) and DOCX (edit in Word, Google Docs or Pages).

HOW DELIVERY WORKS

- Instant download: right after checkout you get a download link on screen and by email.

- You receive one ZIP file. Double-click it (Mac or Windows) to unzip the files.

- Excel: open the .xlsx file. Google Sheets: go to sheets.google.com > File > Import > Upload and choose the .xlsx (step-by-step in the instructions PDF).

- Open the SAMPLE file to see how it works, then fill in the BLANK file with your own details.

- This is a digital product. Nothing will be shipped.

GOOD TO KNOW

- A computer is recommended for setup. The Google Sheets mobile app works for quick updates.

- Sample names, numbers and prices are fictional examples.

- Peak times are averages from your own log. Every starter is different.

- Not affiliated with Google or Microsoft.

- For personal or single-business use. Please don't resell or share the files.

- Because this is a digital download, we can't offer returns. If a file won't open or a formula isn't working, contact us and we'll fix it or send a replacement.

- Designed with the help of AI tools; formulas tested by OvenReadySheets.

Save with the Home Bakery Mega Bundle (every OvenReadySheets tool).