Print

Easy Beginners Sourdough Starter in a Mason Jar

easy beginners sourdough starter in a mason jar - featured image
Print Recipe

Learn how to create a simple, foolproof sourdough starter using just flour, water, and a mason jar. This beginner-friendly guide walks you through the process with minimal maintenance and no fancy equipment.

Ingredients

Scale
  • 1/2 cup (60g) unbleached all-purpose flour (per feeding)
  • 1/4 cup (60ml) room temperature filtered or tap water (per feeding)
  • Whole wheat flour (optional, for initial boost)
  • Clean mason jar (32-ounce or larger, wide-mouth preferred)
  • Rubber band or marker (to mark starting level)
  • Wooden or silicone spoon (avoid metal)

Instructions

  1. Day 1: Mix Your Starter — In your clean mason jar, combine 1/2 cup (60g) unbleached all-purpose flour and 1/4 cup (60ml) room temperature water. Stir vigorously until no dry flour remains. Scrape down the sides. Cover loosely with a cloth or lid (don’t tighten). Mark the level with a rubber band. Place in a warm spot (70-75°F).
  2. Day 2: Check for Activity — You might see a few tiny bubbles or nothing at all. Don’t worry. Discard half the starter (about 1/2 cup) and feed with 1/2 cup flour and 1/4 cup water. Stir well. The smell might be a little funky — that’s normal.
  3. Day 3: The Smelly Phase — Your starter might smell like nail polish remover, cheese, or even vomit. This is totally normal! Discard half, feed again. You might see more bubbles today.
  4. Day 4: Patience Pays Off — Bubbles should be more noticeable now. The smell will start mellowing out. Discard and feed as usual. If you see a layer of liquid (hooch) on top, stir it back in or pour it off before feeding.
  5. Day 5-6: Rising Action — Your starter should be doubling in size within 12-24 hours after feeding. It will look frothy and smell pleasantly sour, like yogurt or fresh bread. Continue daily discard and feedings.
  6. Day 7-10: Ready to Bake — When your starter consistently doubles within 4-8 hours after feeding, has a dome on top, and smells fruity and sour, it’s ready. You can now use it in recipes or store it in the fridge.

Notes

Temperature matters: aim for 70-75°F. Don’t overfeed; stick to a 1:1:1 ratio. Use the discard for pancakes or crackers. The float test (drop a spoonful in water; if it floats, it’s ready) is reliable. Some starters take up to 14 days to become active. Keep starter on counter near stove for warmth in winter.

Nutrition

Keywords: sourdough starter, beginner sourdough, mason jar starter, easy sourdough, homemade starter, fermented dough, bread starter

Find it online: https://platebelle.com/easy-beginners-sourdough-starter-in-a-mason-jar/