Freezer check

Sourdough Bread Freezer Storage Calculator

A loaf in the freezer is a loaf you have not eaten yet, and the difference between a good one and a sad one is usually just the date. Tell this calculator the day the loaf went in and whether it was whole or sliced, and it tells you where you are in the window — the days left, the day quality starts to slip, and exactly how to bring it back: oven temperature, minutes, and what to do with a loaf that has gone past saving. Both dates are worked out in your browser. Nothing is uploaded, saved or sent anywhere.

Your loaf

The guide's rule is the same day it was baked, once the loaf was completely cool.

How did it go into the freezer?

A whole loaf holds about 3 months in the freezer; sliced bread runs 4–6 weeks.

Today, unless you are planning ahead. Set a later date to see what the loaf will be like by then.

Where the loaf stands

Set the freezer date and press Check my loaf. You will get the days it has been in, the days left in its best window, the dates that matter, and the oven temperature and time to bring it back.

How to use the freezer checker

  1. Put in the day it went into the freezer. The window runs from the freezer, not from the day you baked: a loaf that sat on the counter for two days before it was wrapped has already spent two of its days. If you cannot remember exactly, pick the earliest date you are sure of — the honest date is more useful than the flattering one.
  2. Say whether it went in whole or sliced. This is the one choice that moves the answer, and it moves it a lot. A whole loaf holds about 3 months. Sliced bread runs 4–6 weeks, because every cut face is exposed to the cold air. A loaf you cut into after freezing but before today behaves like a sliced loaf from the day you cut it — the tool cannot know that, so enter it as sliced if most of the loaf has been cut.
  3. Leave the check date on today unless you are planning ahead. Moving it forward answers a different, useful question: will this loaf still be good the week of the party?
  4. Read the plan, not just the number. A loaf inside its window gets a refresh at 350°F (175°C) for 5–10 minutes. A loaf past its best gets the crouton and breadcrumb setting — 325°F (165°C) for 20–25 minutes — because no amount of oven time turns a dry slice back into a fresh one.
  5. Copy or print it. The copy button gives you the whole check as plain text for your notes app; the print button puts it on paper for the freezer door.

A worked example

You baked on a Saturday, cooled the loaf completely, and it went into the freezer the same day. Thirty-five days later you are looking at it and wondering whether it is still worth a slice. The loaf was sliced before it went in, and you are checking it today:

  • Days in the freezer: 35.
  • Best window: four weeks, which ended seven days ago.
  • Still inside the guide's range: sliced bread runs to six weeks, so there are seven days left before it is crouton territory.
  • What to do: refresh at 350°F (175°C) for 5 to 10 minutes, straight from frozen, and expect a drier crumb than a four-week-old loaf.
  • And if you leave it another fortnight: 325°F (165°C) for 20 to 25 minutesas croutons or breadcrumbs.

That is the sample Load an example puts on the page. Change the loaf to a whole one and the same 35 days turns into a loaf with nearly two months still to run.

Where the windows come from

These are the bakehouse's own numbers, taken from the freezing guide rather than invented for this page: about 3 months for a whole loaf,4 to 6 weeks for sliced bread, a refresh at350°F (175°C) for 5 to 10 minutes, and croutons or breadcrumbs at325°F (165°C) for 20 to 25 minutes. Sliced bread gets a two-part window because the guide gives it a range: four weeks is the prime end of it, six weeks is the far end. The calculator reports both instead of splitting the difference.

The thawing time — 3 to 4 hours for a whole loaf on the counter — is the tool's own rule of thumb, not a line from the guide, and it is the one number here that you should treat loosely. A loaf thaws when it thaws.

What this calculator does not do

  • It does not decide whether food is safe to eat. The windows are about quality — how the loaf tastes and how the crumb behaves — and nothing here is food-safety advice. Follow your own judgement and official guidance on freezer storage.
  • It does not know what your freezer is set to, how the loaf was wrapped, whether it was vacuum sealed or how many times the door was opened. A tightly wrapped loaf in a cold freezer holds up better than a loose one.
  • It does not count thaw-and-refreeze cycles. Every one costs quality, so freeze a loaf in the portions you will actually use.
  • It does not judge the loaf by eye. If you can see ice crystals or dry grey patches on the crust, that is freezer burn, and it will taste of the freezer however fresh the date says the loaf is — trim it off, or send the loaf to the crouton plan.
  • It does not read your freezer inventory, send you reminders, or store anything. There is no account and no history: close the tab and the check is gone.

Questions bakers ask about freezing sourdough

How long can you freeze sourdough bread?

About three months for a whole loaf, and four to six weeks for bread that has been sliced. The difference is the cut faces: a whole loaf only exposes its crust to the cold air, while every slice in a sliced loaf has two open surfaces to dry out against. Freeze the loaf the same day it was baked, once it is completely cool, and the clock starts then rather than the day it comes out of the oven.

Can you freeze sourdough bread already sliced?

Yes, and for a household of one or two it is usually the better choice — you take out the slices you need instead of thawing a whole loaf and watching it go stale. Sliced sourdough keeps four to six weeks, with four weeks the prime end of that range. There is no need to thaw it first: slices go from the freezer to the toaster, or onto a rack in a 350°F (175°C) oven for 5 to 10 minutes if you want a whole plateful crisp at once.

How do you refresh frozen sourdough bread so it tastes fresh again?

Thaw a whole loaf still wrapped, on the counter, for 3 to 4 hours, then put it straight on the oven rack at 350°F (175°C) for 5 to 10 minutes. That short blast dries the surface back into a crust and warms the middle through without cooking the crumb any further. Start checking at five minutes: the crust is what tells you it is done, not the clock.

What do you do with sourdough that has been in the freezer too long?

Cube it for croutons or blitz it for breadcrumbs and bake at 325°F (165°C) for 20 to 25 minutes — a lower, slower oven than the refresh, because the point is to drive the last of the moisture out rather than to crisp a crust. A dry loaf is actually the right starting point for this: fresh bread steams in the middle and never gets properly crunchy. Turn croutons at about ten minutes so every side browns, and cool them completely before they go in a jar.

Can you refreeze sourdough bread after thawing it?

You can, but each thaw-and-refreeze cycle takes more out of the crumb, and the calculator counts neither the cycles nor the days the loaf spent thawed on the counter. The practical answer is to freeze it in the portions you will actually eat — slices, or half loaves — so a thawed loaf is a finished loaf rather than one that has to go back in.

Does a loaf that has been in the freezer too long still taste of anything?

It tastes of the freezer rather than of bread, and the crust is where you notice it first. Ice crystals and dry grey patches on the surface are freezer burn, and they appear on a loosely wrapped loaf well before any date in this calculator comes round. Trim the burnt surface away, or send the loaf to the crouton plan, where a strong oven and a little oil cover it completely.

After the freezer check

Once you know what is in the freezer, the next step is usually the next loaf — or using up what is already there: