Sourdough Starter Feed Calculator

Plan when your starter will be ready to use based on how you feed it, the temperature, and what you are baking.

Cold kitchens, warm starters, and missed timings

Every winter my kitchen drops a few degrees and my starter stops obeying the clock. Feeds that peak reliably in summer suddenly take hours longer, or overshoot overnight if I misjudge it.

This tool exists to answer one simple question properly: If I feed my starter now, when can I mix my dough?

Most home bakers keep their starter in the fridge, feed it for a bake, use what they need, and put the rest back. That is what this calculator is built for.

Traditionally this is called a levain build. You do not need to remember that term to bake good bread.

What are you feeding for?

Starter consistency

Bulk fermentation Estimate when your dough reaches peak activity. Starter feeding Plan when your starter will be ready to bake with.

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