How to Store Sourdough Bread — Keep It Fresh, Freeze It Properly

You spent two days making that loaf. How you store it over the next three decides whether you enjoy all of it or throw half away. Sourdough keeps far better than commercial bread — the acidity produced during fermentation is a natural preservative — but only if you store it the right way.

The First Few Hours Matter

Don't store it at all yet. A loaf straight from the oven is still cooking internally and releasing steam. Trapping that steam in a bag or container makes the crust go soft and leathery within the hour.

Cool the loaf completely on a wire rack — at least two hours for a standard loaf, longer for a large boule. Only then think about storage. This is also why cutting too early gives you a gummy crumb: the interior hasn't finished setting.

Day One to Three — Cut Side Down on the Bench

For the first couple of days, the simplest method is the best one. Cut the loaf in half, then stand it cut-side down directly on a wooden board or clean bench.

The crust does the work. It's a natural barrier, and the cut face pressed against the board seals itself off from the air. No bag, no container, no wrapping. The crust stays crisp and the crumb stays soft.

If you'd rather not leave bread out on the bench, a breathable bag does the same job while keeping dust off. Our canvas bread bag is made for this — the fabric allows just enough airflow to keep the crust in good condition while slowing the drying that turns bread stale.

Never Put Sourdough in the Fridge

This is the single most common storage mistake, and it's counterintuitive.

Bread goes stale through a process called starch retrogradation — the starch molecules recrystallise and force water out of the crumb. That process runs fastest at fridge temperature, around 4°C. Bread in the fridge goes stale roughly three times faster than bread on the bench.

The freezer is different, and it's fine — below about −18°C the process essentially stops. It's the in-between temperature of a fridge that does the damage.

Beyond Three Days — Freeze It

Sourdough freezes exceptionally well. The key is to slice before freezing, not after.

1. Cool the loaf completely.
2. Slice the whole loaf, or the portion you won't eat in the next two days.
3. Stack the slices with a small piece of baking paper between each one if you want to pull them out individually.
4. Seal in an airtight, moisture-proof bag with as much air pressed out as possible.
5. Freeze. Quality holds for around three months.

Air is the enemy here — it causes freezer burn and dries the crumb. A breathable bag is exactly the wrong choice for freezing. Our TPU-lined bread bag is waterproof and freezer safe, which makes it a reusable replacement for the zip-lock bags most people use once and throw away.

How to Revive Frozen Sourdough

For single slices: straight into the toaster from frozen. No thawing needed. This is the main reason to slice before freezing.

For a whole loaf or a large piece: thaw at room temperature still sealed in its bag — letting it thaw uncovered dries it out. Then refresh in a 180°C oven for 8–10 minutes. The crust crisps back up and the crumb softens. It genuinely tastes close to freshly baked.

For a stale but unfrozen loaf: run the crust briefly under a tap, shake off the excess, and bake at 180°C for 10 minutes. The water steams into the crumb and revives it. Eat it the same day — this trick only works once.

Canvas or TPU — Which Bag Do You Need?

• Canvas — breathable. Best for everyday bench storage over the first two or three days. Keeps the crust crisp. Not suitable for freezing.
• TPU-lined — waterproof and airtight. Best for freezing and longer storage where you want a complete moisture seal. The crust softens, which is the trade-off.

Plenty of bakers keep one of each. If you bake weekly and freeze half, that's the setup worth having.

What Not to Use

• Plastic wrap or supermarket plastic bags — trap moisture against the crust and turn it soft and chewy within hours.
• Sealed plastic containers — same problem, and they can encourage mould in humid weather.
• The fridge — see above.

A Note on Australian Humidity

In a Brisbane or Darwin summer, bread left in a sealed bag on the bench can develop mould in two or three days rather than five or six. If you're baking in humid conditions, freeze earlier than you would in winter — slice and freeze half the loaf on the day you bake it, and work through the rest fresh.

Ready to Bake?

If you're here before your first loaf, start with our Classic Sourdough Bread recipe. For everything that happens before the oven, our bulk fermentation guide is the place to start. And if you still need a culture, browse our sourdough starter kits.