Salt to Flour Ratio in Bread (1.8–2.2%)

1.8–2.2%

Fine sea salt or kosher salt — Fine-grained salt dissolves most evenly; kosher salt needs slightly more volume but the same weight — always use weight

100% (anchor)

Flour — The denominator against which all salt percentages are measured

1. Weigh flour. Multiply by 0.018–0.022 to determine salt weight. 2. If using an autolyse, hold salt (and yeast) until after the rest. 3. Dissolve salt in a small amount of the recipe's reserved water before incorporating — this prevents pockets of un-dissolved salt from locally degrading gluten. 4. Add salt after initial dough formation; mix until fully incorporated before assessing texture.

• Never add salt directly on top of dry yeast — even brief direct contact begins to osmotically stress and kill yeast cells. Add them separately or dissolve salt in water first.
• Weight over volume is non-negotiable: one teaspoon of fine sea salt weighs about 6 g; one teaspoon of Diamond Crystal kosher salt weighs about 3 g — the same 'teaspoon' instruction can halve or double your salt percentage.
• In warm weather (kitchen above 25 °C / 77 °F), shade your salt percentage toward 2.2% to slow fermentation and prevent overproofing.
• Salt strengthens gluten: a dough made with 2% salt will feel noticeably firmer and be less extensible than the same dough made with 1.5% — factor this into shaping plans.
• Sourdough bakers can lean toward 2.0–2.2% because the extended fermentation timeline means fermentation-retarding effects are desirable for flavor development.
• If your bread tastes bland despite a good crust, the most common culprit is salt below 1.8% or flour that has absorbed more water than expected, diluting effective salt concentration.

• 1.5% (low salt)

  Dough ferments faster and less predictably; crumb is slightly more open due to weaker gluten; flavor is noticeably flat — used in certain Tuscan pane sciocco bread traditions

• 1.8% (lower bound, standard)

  Minimum for reliable flavor; common in lean baguette formulas where fermentation must proceed briskly to develop crust flavor

• 2.0% (sweet spot)

  The most widely specified percentage across professional bread formulas; balances all three functions optimally

• 2.2% (upper bound)

  Marginally stronger gluten; fermentation noticeably slowed; useful in warm kitchens where overproofing is a risk

• 2.5%+

  Detectably salty; yeast inhibited significantly; avoided in standard breads unless intentional (some pretzel doughs, certain flatbreads)

• Pane sciocco (Tuscan salt-free bread)

  Uses 0% salt — an ancient tradition designed to partner with intensely salty cured meats and aged cheeses; gluten is extensible and fermentation is rapid

• Baker's Percentage System

  Salt percentage is a direct baker's percentage read-off from the formula

• Bread Hydration (Lean Dough)

  Salt interacts with water in the dough; higher hydration dilutes effective salt ionic concentration slightly

• Sourdough Hydration (65–85%)

  Sourdough's long ferment makes precise salt control especially important for timing

• Sourdough Starter Feeding Ratio (1:1:1, 1:2:2, 1:5:5)

  Salt is never added to the starter itself — only to the final dough

1. 1.Modernist Bread — Nathan Myhrvold & Francisco Migoya (The Cooking Lab, 2017)
2. 2.The Bread Baker's Apprentice — Peter Reinhart (Ten Speed Press, 2001)
3. 3.On Food and Cooking — Harold McGee (Scribner, revised ed. 2004)
4. 4.Professional Baking — Wayne Gisslen (Wiley, 7th ed., 2016)

Confidence: high