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Baking & Bread

Sourdough Starter Calculator — Lievito Madre Refreshment & Hydration

Calculate lievito madre refreshment quantities, hydration percentage and timing. Get exact flour and water for each feeding stage, plus quantity needed for your bread or panettone recipe.

Updated: May 2026
No registration Instant calculation Data stays in browser

Sourdough quantities

Flour500 g
Direct water335 ml
Sourdough starter (lievito madre)100 g
Salt10 g
TOTAL dough945 g
- Starter composition -
Flour in the starter50 g
Water in the starter50 ml
FINAL dough hydration70%

Standard sourdough percentage method: flour 100%, water 67%, starter 20-25%, salt 2%. Liquid starter (licoli) = 100% hydration, stiff sourdough starter = 50%.

1867 persone trovano utile questo calcolatore

Lievito Madre Refreshment Formula

Standard rinfresco (1:1:0.5):
  New flour  = Starter weight × 1.0
  New water  = Starter weight × 0.5
  Hydration  = (Water in starter + New water)
                ÷ (Flour in starter + New flour) × 100

Simple hydration calculation:
  For 50% hydration starter:
    Existing starter has 50% water content
  After refreshment 100g + 100g flour + 50g water:
    Total flour: ~167g, Total water: ~83g → 50% hydration

Quantity for recipe:
  Final starter = Required by recipe ÷ (ratio ÷ (ratio + 1 + 0.5))
  E.g. need 300g ripe starter at 1:1:0.5 ratio:
    → Start with: 300g ÷ (1 ÷ 2.5) = 120g old starter

Refreshment Ratios & Timing

Ratio (starter:flour:water)Use casePeak at 24°CPeak at 18°C
1:1:0.5 (standard)Daily maintenance3–4h6–8h
1:2:1 (vigorous)Pre-bake preparation4–5h8–10h
1:3:1.5 (strong dilution)Panettone pre-production5–6h10–12h
1:0.5:0.25 (concentrated)Rescue of slow starter2–3h4–5h

Example: Preparing 500g Lievito Madre for Panettone

A Milanese pasticceria prepares panettone. The recipe calls for 500g of ripe lievito madre at peak activity. Three consecutive refreshments are performed over 18 hours before incorporating into the dough.

Day before (Day 0, 8pm) — First rinfresco to build volume:

  • Start: 80g existing starter
  • Add: 80g Manitoba flour (W 380) + 40g water at 28°C
  • Knead, form a ball, score with X, ferment at 26–28°C for 4h

Day of (Day 1, midnight) — Second rinfresco:

  • Take 130g of refreshed starter (now doubled)
  • Add: 130g flour + 65g water → 325g total
  • Ferment at 28°C for 4h (lievito bagno)

Day 1, 4am — Final rinfresco:

  • Take 200g refreshed starter + 200g flour + 100g water → 500g ready for dough

Target: pH 4.1–4.3, triples in 4h — ready for first panettone impasto at 8am.

Risposte rapide

Direct answers

What is lievito madre and how does it differ from standard sourdough starter?
Lievito madre (literally 'mother yeast') is the Italian tradition of maintaining a stiff sourdough starter at 45–50% hydration — much stiffer than the 100% hydration liquid levain common in French and American baking. The stiffness selects for a different microbial balance: more lactic acid bacteria and a milder, less vinegary flavour. It is the foundation of Italian enriched breads like panettone, pandoro and colomba, where the dough is loaded with butter and eggs and needs a gentle, sweet acidity rather than the sharp tang of a liquid levain.
What is the refreshment ratio for lievito madre?
The standard Italian refreshment (rinfresco) ratio for stiff lievito madre is 1:1:0.5 — meaning 1 part starter : 1 part flour : 0.5 parts water. For example: 100g starter + 100g flour + 50g water = 250g refreshed starter. This produces a final hydration of approximately 50%. For a more vigorous refresh (before panettone production), Italian pastry chefs use 1:2:1 or even 1:3:1.5, tripling the flour to dilute acidity and boost yeast activity.
How often should I refresh lievito madre?
At room temperature (18–20°C): refresh every 24 hours to maintain activity and prevent over-acidification. In the refrigerator (4–5°C): refresh every 5–7 days for a maintenance schedule. Before using in a recipe, perform 2–3 consecutive daily refreshments at room temperature to bring the starter to peak activity. For panettone production, Italian pastry chefs perform 3 refreshments in 24 hours (every 4–6 hours) in a lievito bagno (water bath at 28°C) to strip excess acidity before incorporating into the dough.
What is the difference between pasta madre solida and licoli (liquid levain)?
Pasta madre solida (stiff starter, 45–50% hydration) is kneaded like a small dough ball after each refresh, stored tied in cloth to maintain pressure, and produces a sweeter, milder flavour profile. Licoli (lievito in coltura liquida) is a 100–125% hydration liquid levain: easier to maintain (stir rather than knead), more predictable rising behaviour, and suitable for open-crumb breads. Licoli has a more acidic character. For classic Italian panettone and pandoro, lievito madre solida is strongly preferred. For everyday bread and pizza, licoli works well.
How much lievito madre do I need for a panettone recipe?
Classic Italian panettone recipes use 20–25% lievito madre relative to the flour weight. For a single large panettone (1kg finished weight), you need approximately 1.5–1.8kg total dough, which contains about 500–600g flour. At 20% lievito madre: 100–120g starter. Professional Italian bakeries prepare at least 3× the amount needed and test pH (target 4.1–4.3) and rise time (starter should triple in 4 hours at 28°C) before committing the starter to a panettone batch.
How do I know if my lievito madre is ready to use?
A healthy, active lievito madre should double to triple in volume within 3–4 hours at 28°C after a standard refreshment. The interior should show an open, irregular crumb structure with visible bubbles. The aroma should be pleasantly sour and yoghurt-like, not sharp and vinegary (a sign of over-acidification) and not alcoholic or flat (a sign of under-feeding or cold storage). A simple float test: a small piece dropped in water should float within 5–10 seconds, indicating sufficient gas production.
Quick answers

Frequently Asked Questions

What is lievito madre and how does it differ from standard sourdough starter?

Lievito madre (literally 'mother yeast') is the Italian tradition of maintaining a stiff sourdough starter at 45–50% hydration — much stiffer than the 100% hydration liquid levain common in French and American baking. The stiffness selects for a different microbial balance: more lactic acid bacteria and a milder, less vinegary flavour. It is the foundation of Italian enriched breads like panettone, pandoro and colomba, where the dough is loaded with butter and eggs and needs a gentle, sweet acidity rather than the sharp tang of a liquid levain.

What is the refreshment ratio for lievito madre?

The standard Italian refreshment (rinfresco) ratio for stiff lievito madre is 1:1:0.5 — meaning 1 part starter : 1 part flour : 0.5 parts water. For example: 100g starter + 100g flour + 50g water = 250g refreshed starter. This produces a final hydration of approximately 50%. For a more vigorous refresh (before panettone production), Italian pastry chefs use 1:2:1 or even 1:3:1.5, tripling the flour to dilute acidity and boost yeast activity.

How often should I refresh lievito madre?

At room temperature (18–20°C): refresh every 24 hours to maintain activity and prevent over-acidification. In the refrigerator (4–5°C): refresh every 5–7 days for a maintenance schedule. Before using in a recipe, perform 2–3 consecutive daily refreshments at room temperature to bring the starter to peak activity. For panettone production, Italian pastry chefs perform 3 refreshments in 24 hours (every 4–6 hours) in a lievito bagno (water bath at 28°C) to strip excess acidity before incorporating into the dough.

What is the difference between pasta madre solida and licoli (liquid levain)?

Pasta madre solida (stiff starter, 45–50% hydration) is kneaded like a small dough ball after each refresh, stored tied in cloth to maintain pressure, and produces a sweeter, milder flavour profile. Licoli (lievito in coltura liquida) is a 100–125% hydration liquid levain: easier to maintain (stir rather than knead), more predictable rising behaviour, and suitable for open-crumb breads. Licoli has a more acidic character. For classic Italian panettone and pandoro, lievito madre solida is strongly preferred. For everyday bread and pizza, licoli works well.

How much lievito madre do I need for a panettone recipe?

Classic Italian panettone recipes use 20–25% lievito madre relative to the flour weight. For a single large panettone (1kg finished weight), you need approximately 1.5–1.8kg total dough, which contains about 500–600g flour. At 20% lievito madre: 100–120g starter. Professional Italian bakeries prepare at least 3× the amount needed and test pH (target 4.1–4.3) and rise time (starter should triple in 4 hours at 28°C) before committing the starter to a panettone batch.

How do I know if my lievito madre is ready to use?

A healthy, active lievito madre should double to triple in volume within 3–4 hours at 28°C after a standard refreshment. The interior should show an open, irregular crumb structure with visible bubbles. The aroma should be pleasantly sour and yoghurt-like, not sharp and vinegary (a sign of over-acidification) and not alcoholic or flat (a sign of under-feeding or cold storage). A simple float test: a small piece dropped in water should float within 5–10 seconds, indicating sufficient gas production.

Italian version: Calcola lievito madre

Sourdough quantities

Flour500 g
Direct water335 ml
Sourdough starter (lievito madre)100 g
Salt10 g
TOTAL dough945 g
- Starter composition -
Flour in the starter50 g
Water in the starter50 ml
FINAL dough hydration70%

Standard sourdough percentage method: flour 100%, water 67%, starter 20-25%, salt 2%. Liquid starter (licoli) = 100% hydration, stiff sourdough starter = 50%.

1867 persone trovano utile questo calcolatore

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