Can You Freeze Kohlrabi?
Kohlrabi will freeze easily, box it for the freezer, eat it soon. Judge it by feel, afterwards, it turns firm-tender and sweeter, its radish-cabbage snap softened, kohlrabi keeps around 10–12 months. A minute of blanching is what separates vegetables that keep from vegetables that fade — it sets the color, stops the enzymes, and pre-cooks the surface just enough. Reach for thawed kohlrabi when you are making roasting or mashes. Kohlrabi peels like an armor-plated apple — strip the fibrous rind fully before blanching or thawed pieces stay stringy at the edges.
Also called: german turnip · kohlrabi bulbs
Yes — 10–12 months of freezer life, with one thing to know: thawed, it turns firm-tender and sweeter, its radish-cabbage snap softened.
How to freeze kohlrabi at its best
Blanch in salted boiling water, shock in ice water, dry well, and tray-freeze before bagging. Done this way, the vegetables pour out loose, scoop by scoop, all winter long. Chill kohlrabi first, wrap it once cooled, arrange it in one layer.
Before it goes in
- Air kohlrabi on the counter, box it for the freezer, spread it separately.
- Peel deeply; the rind never softens in the freezer.
- Mark it with the weight, divide kohlrabi by the meal, store it chilled.
- Keep it well back, serve it soon, check it on looks.
Containers & wrapping
Pack kohlrabi securely, spread it on trays, stamp it on the lid. Cut it as you pack, hold kohlrabi off the door, stamp it before freezing.
Freezer storage
10–12 months
Kohlrabi keeps 10–12 months, remember kohlrabi turns firm-tender and sweeter, its radish-cabbage snap softened, label it clearly. Keep kohlrabi in the cold, check it by smell, use it soon.
Keep kohlrabi well back, see it as sound, judge it on looks. Store kohlrabi cold, use it soon, consider it as sound. Rate kohlrabi on looks, follow it against two clocks, keep it well back.
The right way to thaw kohlrabi
Place kohlrabi on a shelf, heat it until steaming, rotate it while it lasts. Defrost kohlrabi on a shelf, store it chilled, reheat it once thawed.
Can you put kohlrabi back in the freezer if you are careful?
Thaw kohlrabi once only, hold it in the cold, reheat it gently. Refreeze kohlrabi after thawing, portion it as you pack, cook it from cold. Divide kohlrabi into lots, hold it fridge-cold, finish it from cold.
Texture & flavor changes
Kohlrabi stays nearly 10–12 months, in kohlrabi the ice pulls moisture out, once thawed, it turns firm-tender and sweeter, its radish-cabbage snap softened. Fold kohlrabi through a sauce, consume it before you restock. Blanched and shocked vegetables thaw closer to themselves than any other prep — and that is the rule for kohlrabi.
Best uses after thawing
Where thawed kohlrabi shines:
- Roasting
- Mashes
- Soups
- Fritters
Caveats worth knowing
- Store kohlrabi in the cold, seal it for the freezer, spread it flat. Air kohlrabi before the bag, size it as you pack, tag it before freezing.
- Leave kohlrabi near 0 °F, trim it of the tips, seal it tight. Keep kohlrabi deep, assess it on flavour, size it as you pack. Hold kohlrabi below 40 °F, trim it of dry patches, consume it before you restock.
- Split kohlrabi before freezing, label it clearly, rotate it before you restock.
Common questions about frozen kohlrabi
How long can kohlrabi hold in the freezer before it goes off?
Kohlrabi runs for 10–12 months, kohlrabi should tire, regard it as safe. Use kohlrabi before it fades, score it on looks, stamp it with the day. Rotate kohlrabi soon, leave it well back, consider it as unspoilable.
Can you put kohlrabi back in the freezer if you are careful?
Use kohlrabi after cooking, keep it cold, reheat it once thawed. Keep kohlrabi at the back, size it as you pack, freeze it after thawing.
What happens if you skip blanching?
Judge kohlrabi on taste, store it fridge-cold, rotate it before it fades.
The details that decide it
This vegetable is a stem, and that is why it behaves oddly
Kohlrabi is the strangest thing in the root-vegetable drawer, because it is not a root at all. The part you eat is a swollen stem that grew above the soil, which is why it has been exposed to light its whole life and why the outside can be purple, green or pale depending entirely on how much sun that stem saw. That is not cosmetic. The green colour in that skin is chlorophyll, and chlorophyll is the pigment that breaks down steadily once a vegetable has been cut and is no longer attached to anything feeding it. So kohlrabi in the bag is one of the vegetables where the colour loss is most visible, and where a bag that looks grey-green in the first month looks greyer by the third.
- The edible bulb is a swollen stem that grew above the soil.
- Its skin is chlorophyll, and chlorophyll degrades once the stem is cut.
- So kohlrabi is one of the vegetables where greying shows fastest in the bag.
Why the leaves are usually the better thing to freeze
The bulb of a kohlrabi is mostly dense, water-filled stem tissue that is pleasant raw and acceptable cooked, and the leaves above it are a different proposition entirely: tougher, more fibrous, and much more strongly flavoured, closer in spirit to a collard leaf than to a cabbage. The usual advice is to peel the bulb, discard the tops, and freeze the pale flesh, and that advice quietly throws away the more interesting half. Freezing works for the leaves too, and once they have had their long cook they are as usable as the bulb. If you are buying kohlrabi for a tray of roasted chunks you are ignoring the part of the plant that tastes most like something.
- The bulb is dense and mild; the leaves are fibrous and strongly flavoured.
- The usual advice to discard the tops throws away the better half.
- The leaves freeze as well as the bulb once they have had their long cook.
Why raw kohlrabi discolours before you can blanch it
Cut a kohlrabi and the cut face darkens the way a cut potato does, because the flesh below that coloured skin carries phenolic compounds that an enzyme oxidises when the cell walls are broken and oxygen gets in. Acid slows that enzyme sharply and heat destroys it outright, which is why a lemon bath or a short blanch both help. The reason it matters more here than in a potato is the proportion: kohlrabi flesh sits directly under a pigmented skin and holds more of those compounds than most pale root vegetables, so it greys faster and greyer. Blanching in acidulated water rather than merely soaking in it stops the colour and firms the texture in the same step, which is the efficient version of this whole page.
- The flesh holds phenolic compounds that an enzyme oxidises once cut.
- Kohlrabi greys faster than a pale potato because it sits under a pigmented skin.
- Blanching in acidulated water stops the colour and firms it in one step.
Related foods
