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Starter Feeding Ratio × Target WeightPre-Computed Lab Matrix • Day 5

1:3:3 Sourdough Starter Feeding Chart to Make 60g Levain (9g : 26g : 25g)

Balanced mid-ratio baker's math to build 60g of active levain (100% Liquid) for an 8 - 10 hrs ripening window.

Instant Lab Reference Verdict (Starter Feeding Ratio × Target Weight)

To make 60g of active culture at a 1:3:3 ratio (1:3:3), weigh 9g of ripe seed, 26g of flour and 25g of water. That 100% Liquid culture will be domed and sweet in 8 - 10 hrs at 75°F, which is exactly the timing you want for 8–10 hour overnight counter build (cool room). Feed 80g — 11g / 34g / 35g — if you want to stop discarding permanently.

Exact 60g Build
9g : 26g : 25gStarter : Flour : Water (1:3:3)
60g + 20g Jar Reserve
11g : 34g : 35gBuilds 80g 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)

Gram-by-Gram 1:3:3 Levain Breakdown for 60g (100% Liquid)

Every row recalculates the 1:3:3 ratio from scratch so the seed, flour and water columns stay internally consistent.

Levain Yield to BuildSeed Culture (1 Part)Added Flour (3 Parts)Added Water (3 Parts)Ripening Window at 75°F
80g target ([Target])seed 11gflour 34gwater 35gripe in 8 - 10 hrs
60g target (One Step Down)seed 9gflour 26gwater 25gripe in 8 - 10 hrs
40g target (One Step Up)seed 6gflour 17gwater 17gripe in 8 - 10 hrs
70g target (Two Steps Down)seed 10gflour 30gwater 30gripe in 8 - 10 hrs
50g target (Two Steps Up)seed 7gflour 21gwater 22gripe in 8 - 10 hrs

Dynamic Stoichiometric Workbench (9g : 26g : 25g)

Test custom loaf weights or alternative fermentation schedules directly against the 11g : 34g : 35g benchmark above.

Open Fullscreen Solver →
Exact 60g Build:
9g : 26g : 25g — Starter : Flour : Water (1:3:3)
60g + 20g Jar Reserve:
11g : 34g : 35g — Builds 80g 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 (60g Levain Build)

The 1:3:3 ratio dilutes organic acid carried over from the previous batch by roughly 7:1 at 60g. Because 9g of that inoculum is only 8.6g per part, the residual lactic and acetic acid entering the new batch is proportionally smaller — which is why 100% Liquid cultures taste cleaner and rise faster.

If your culture is sluggish or smells sharply of vinegar, the ratio is usually not the culprit — the culture is. Two consecutive warm 1:3:3 refreshes, each feeding 26g of fresh flour against 9g of tired seed, strip out accumulated acetic acid and restore yeast vigour faster than any other single intervention.

Zero-Discard Scraping Method for 60g Levain (1:3:3)

  1. Feed at the Right Moment: For 8–10 hour overnight counter build (cool room), begin the 1:3:3 feed 8 - 10 hrs before you plan to mix dough.
  2. Mix 11g Seed, 34g Flour, 35g Water: Combine everything in the jar and swirl until the flour is fully hydrated.
  3. Cover and Rest (8 - 10 hrs): Keep the jar at 75°F, ideally inside a proofing box, until the culture peaks.
  4. Use 60 grams and Keep 20g: The levain goes into your dough at full stretch; the reserve becomes the next cycle's 1:3:3 seed.

Key Baker's Math Questions (Exact 60g Build: 9g : 26g : 25g)

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 26g of bread flour does.

How long does a 1:3:3 feeding take to peak?

At 75°F (24°C) the culture domes in 8 - 10 hrs; a cooler room adds roughly 3.8% for every degree below that.

What flour should I use for a 60g 1:3:3 levain?

A 12%+ protein bread flour for the 26g of flour gives a strong levain; adding whole wheat or rye at 20% of that weight speeds it up and adds pleasant acidity.

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