Culinum logo
🔍

Sourdough Starter

A living culture of flour and water that gives bread its characteristic tang and rise.

A sourdough starter is a mix of flour and water fermented by wild yeasts and bacteria. It’s used to leaven and flavor breads naturally.

• Updated 4/30/2025
Sourdough Starter

Prep Time

10 min

Cook Time

10080 min

Total Time

10090 min

Servings

4

Ingredients

  • Water - 100 g
  • Flour - 100 g

Directions

  • Step 1

    Day 1: In a clean jar, combine 100 g whole wheat flour and 100 g filtered water; stir until smooth.

  • Step 2

    Cover loosely with a breathable cloth and let rest at room temperature (20–25 °C) for 24 h.

  • Step 3

    Days 2–7: Discard half the mixture. Feed with 100 g white bread flour and 100 g filtered water; stir, cover, and ferment 24 h.

  • Step 4

    By day 5–7, bubbles should form and a pleasant sour aroma develops—your starter is ready.

  • Step 5

    Store in the refrigerator, feeding weekly with 50 g flour and 50 g water to maintain.

Cook's Notes

Use filtered water and a glass or plastic jar (avoid metal). Consistent temperature yields best activity.

Nutrition Facts (per serving)

91
Calories
1g
Fat
19g
Carbs
5g
Protein