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Starter Feeding Ratio × Target WeightQuantitative Baker's Math Spec (1-3-3-sourdoug)

1:3:3 Sourdough Starter Feeding Chart to Make 180g Levain (26g : 77g : 77g)

Balanced mid-ratio baker's math to build 180g of active levain (100% Liquid) for an 8 - 10 hrs ripening window.

Executive Baker's Math Summary (Starter Feeding Ratio × Target Weight)

Feed 1:3:3 and you get 26g seed starter, 77g flour and 77g water, adding up to the 180g you actually need. That 100% Liquid culture peaks in 8 - 10 hrs at 75°F. Add the 20g buffer and the numbers shift to 29g / 86g / 85g for a 200g jar. Perfect for 8–10 hour overnight counter build (cool room).

Exact 180g Build
26g : 77g : 77gStarter : Flour : Water (1:3:3)
180g + 20g Jar Reserve
29g : 86g : 85gBuilds 200g total (0g discard waste)
Estimated Peak Window
8 - 10 hrsAt 74°F–76°F (23.5°C–24.5°C)
Levain Hydration
100%8–10 hour overnight counter build (cool room)

1:3:3 Sourdough Starter Feeding Chart Around a 180g Build

Neighbourhood of 1:3:3 builds used to sanity-check a scaled recipe before committing flour to the mixer.

Levain YieldCulture (1)Feed Flour (3)Feed Water (3)Estimated Peak Window
Levain build 170g ([Exact Build])24g cultured seed73g sifted flour + 73g liquidzero-waste reserve 20g8 - 10 hrs dome window
Levain build 200g (Slightly Leaner)29g cultured seed86g sifted flour + 85g liquidzero-waste reserve 20g8 - 10 hrs dome window
Levain build 180g (Slightly Fuller)26g cultured seed77g sifted flour + 77g liquidzero-waste reserve 20g8 - 10 hrs dome window
Levain build 160g (Much Leaner)23g cultured seed69g sifted flour + 68g liquidzero-waste reserve 20g8 - 10 hrs dome window
Levain build 190g (Much Fuller)27g cultured seed81g sifted flour + 82g liquidzero-waste reserve 20g8 - 10 hrs dome window

Live Parameter Solver for 1:3:3 Sourdough Starter Feeding Chart to M

Dial in custom baker's percentages and export your adjusted 26g : 77g : 77g formula for bake day.

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Exact 180g Build:
26g : 77g : 77g — Starter : Flour : Water (1:3:3)
180g + 20g Jar Reserve:
29g : 86g : 85g — Builds 200g total (0g discard waste)
Estimated Peak Window:
8 - 10 hrs — At 74°F–76°F (23.5°C–24.5°C)

Balancing Yeast Density & Acidity with a 1:3:3 Ratio (180g Levain Build)

Temperature and ratio interact. The 1:3:3 figure of 1:3:3 does not mean the same thing in a 68°F kitchen as in an 82°F one: with the 8 - 10 hrs window quoted at 75°F, a cooler room stretches it by roughly 3.8% per degree, so 77g of flour in a 100% Liquid feed may need longer than the label implies.

Readiness, not the clock, should end the feed. The 1:3:3 culture at 180 g should dome into a taut convex pillow and release gas in visible streaks when the jar is tilted; a levain that merely doubled and stayed flat has not finished fermenting and will underproof the dough.

Zero-Discard Scraping Method for 180g Levain (1:3:3)

  1. Zero the Scale and Pre-weigh (29g / 86g / 85g): Set out three vessels and weigh each ingredient before you open the culture jar.
  2. Bloom the Seed (29g): Add the 29g of ripe seed to 85g of water and stir until the mixture becomes a uniform cloudy suspension.
  3. Add Flour in Two Pours (86g): Incorporate half the flour, wait 20 minutes for hydration, then work in the remainder so no dry pockets survive.
  4. Ferment to a Dome (8 - 10 hrs): At 75°F the 1:3:3 culture should double and dome in 8 - 10 hrs; pull 180g at peak and return 20g to the fridge.

Cereal Chemistry & Bench Execution FAQs

What happens if I use 1:3:3 starter in a very wet dough?

The 100% Liquid levain carries less acid, so a wet dough keeps more of its elasticity. Hold back a little extra water if your flour absorbs like 77g of bread flour does.

How long can I keep the leftover starter in the fridge?

At 38°F (3°C) the 20g reserve rests indefinitely. Cold slows the culture without stopping it, and the 8 - 10 hrs peak simply arrives sooner once you feed it.

How many grams of starter, flour and water make 180 g at a 1:3:3 ratio?

26g starter + 77g flour + 77g water = 180 g, split across 7 parts of 25.7g each.

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