How to Freeze & Refresh Sourdough Bread

Dough Dough Guides

I bake in big batches — usually 6 to 12 loaves at a time — and freeze most of them, so there's always fresh-tasting sourdough on hand for our Airbnb guests without firing up the oven every single day. Sourdough freezes beautifully, and with one simple trick it comes back out of the freezer tasting like it's just come off the cooling rack. Here's exactly how I do it — and don't worry, you don't need to bake a dozen loaves for this to be worth it. The same method works perfectly for one or two.

Why freezing works so well for sourdough

Sourdough is one of the best breads there is for freezing. Its natural acidity and strong crumb structure hold up far better than soft supermarket loaves, and freezing essentially hits pause on staling the moment the bread goes in. The only thing freezing softens is the crust — and the refresh method below brings that back crisp and crackly. Done right, a frozen-then-refreshed loaf is very hard to tell apart from one baked an hour ago.

Freeze it fully cooled — never warm

This is the one rule that matters most. Let the loaf cool completely before it goes anywhere near the freezer — at least 2 hours, ideally until it's stone cold. A loaf is still cooking and releasing steam as it cools; bag it warm and that steam gets trapped, leaving you with a damp, gummy crumb when you thaw it. Cold loaf, every time.

How to freeze (batches or just one)

Whole loaves — my preferred way

  1. Cool the loaves completely.
  2. Wrap each one tightly so no crust is left exposed — a freezer bag with the air squeezed out works well, or a double layer of cling film followed by foil. Exposed crust is what causes freezer burn.
  3. Label with the date. I bake and freeze 6–12 at a time, lay them flat to firm up, then stack them — but freeze as few as you like, even a single loaf.
  4. Freeze on the day you bake, for the best possible quality.

Sliced — for grab-and-go toast

If you mostly eat your bread toasted, slice the cooled loaf first and freeze the slices in a bag. You can then take out exactly what you need and drop the slices straight into the toaster — no oven required.

How long does it keep? Sourdough is at its best within 3 months in the freezer. It's still perfectly safe and tasty after that, but the crust gradually softens and flavour dulls, so I try to work through a batch within that window.

The refresh: from frozen to fresh-baked in about 15 minutes

This is the part that makes batch-freezing worth it. There's no slow thawing on the counter — the loaf goes from freezer to oven, and a quick rinse under the tap is the secret to bringing the crust back to life. Here's the full method I use:

  1. Preheat your oven to 220°C (200°C fan / gas mark 7). A properly hot oven is what re-crisps the crust, so let it come fully up to temperature.
  2. Take the loaf straight from the freezer — no need to thaw it first. Refreshing it frozen actually gives a better result.
  3. Run the whole frozen loaf briefly under a cold running tap, turning it so the entire crust gets wet — just a few seconds. You want the surface damp all over, not soaked through. This is the trick: that thin layer of water turns to steam in the hot oven and revives the crust exactly the way a baker's steam-injected oven does.
  4. Place the wet loaf directly onto the middle oven rack (or on a baking tray if you prefer). Don't wrap it — you want the heat and steam to work on the crust.
  5. Bake for about 15 minutes, until the crust is crackly and crisp again and the loaf is heated right through to the centre. A large or very dense loaf may want a couple of extra minutes.
  6. Let it cool for around 10 minutes before slicing. The crumb finishes setting as it cools, just as it does with a freshly baked loaf — slice too soon and it'll feel doughy.

That's it. The crust comes out singing, the crumb is soft and springy, and most people genuinely can't tell it was ever frozen.

Froze it sliced? Skip the oven entirely — drop the frozen slices straight into the toaster on a medium setting. Perfect for one or two pieces.

A few things I've learned

  • Eat a refreshed loaf the same day. Once it's been through the oven it stales faster than a fresh loaf, so refresh only what you'll get through.
  • Don't refreeze. Once a loaf has been refreshed, don't put it back in the freezer — freeze it once, refresh it once.
  • Want a softer crust? Skip the tap rinse and warm the loaf through gently instead — you'll get a milder, less crackly crust.
  • Bake-and-freeze on the same day. The fresher the loaf goes in, the fresher it comes out.

Big batches start with a starter that's ready when you are. Ours is live, organic and active in 2 hours — so a baking day is never far off.

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