National Sourdough Day 2027

When is National Sourdough Day?

National Sourdough Day is celebrated every year on April 1. In 2026, it falls on a Tuesday, offering the perfect midweek opportunity to bake, break, and share bread with friends, family, or your online foodie community.

How to Get Involved

Whether you’re a seasoned baker or a curious beginner, here are some great ways to join the celebration:

• Start a Sourdough Starter: Mix flour and water and begin your own fermentation journey — no yeast packets needed!
• Bake and Share: Make your favourite sourdough recipe and share it with neighbours, coworkers, or online.
• Host a Sourdough Swap: Exchange homemade loaves or starters with fellow bread enthusiasts.
• Take a Class: Join an online or local sourdough baking workshop to refine your technique.
• Celebrate the Science: Use this day to explore the fermentation process and teach others about the beneficial microbes behind sourdough’s unique flavour.

History of the Event

While sourdough itself dates back thousands of years, National Sourdough Day has more modern roots in the growing appreciation for traditional baking methods and home-cooked nourishment. It gained popularity during the home baking boom of the early 2020s and has since become a recognised occasion for celebrating craftsmanship in baking, culinary heritage, and community sharing.