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How to freeze potatoes

Stuck with too many spuds? Made too much mash? Good news – like other leftovers, you can safely store cooked potatoes in the freezer, stashing them away for a future dinner. It’s far better for your wallet (and the planet) than throwing leftovers away, and you’ll save time in future by not having to prep spuds from scratch. Here’s our step-by-step guide to how to freeze potatoes.

Freezing potatoes

Before you begin, there are a few things you need to know about freezing potatoes. It's cheap, it's convenient, and tasty, too. Freezing cooked potatoes has no negative impact on the taste or texture of your cooking, and in some cases, will add to the delicious crispiness that makes potatoes so irresistible. 

Just one golden rule to remember: you don’t usually need to defrost your frozen potatoes before you cook them up again, so in most of the methods and recipes below, they’re ready to use straight from frozen. All you’ll need to get started is some space in your freezer, resealable bags and a little patience.

First things first: potatoes should never be frozen raw. They contain a lot of water, which when thawed will give the potato a mushy or grainy texture. Not ideal for making hash browns for weekend brunch! 

In this article, we’ll show you how to freeze potatoes when they’re cooked in various ways, including mashed, roasted, baked and boiled. We’ll also explain how you can cook with your frozen spuds, and provide some weeknight meal inspiration with our best potato recipes.


How to freeze whole and cubed potatoes

Step 1: Chop and peel 
Peel your potatoes if you prefer, but skin-on spuds are equally delicious – then chop the potatoes into halves or cubes.

Step 2: Parboil 
Bring a pot of water to a rolling boil, season with a little salt and put your spuds in. Cooking times vary depending on their size: tiny cubes will only need 2-3 mins but whole or halved spuds need up to 10.  

Step 3: Blanch
Have a bowl of iced water at the ready. After parboiling, immediately drop the potatoes into the iced water to stop the cooking process. Drain in a colander, leave to cool completely, then pat dry. 

Step 4: Flash-freeze 
Spread each potato piece out in a single layer on a baking tray so they don’t touch one another, cover and freeze for up to 12 hours until solid.  

Step 5: Label and store 
Tip the potatoes into a resealable bag, then label so you don’t forget what they are (and when they were frozen). Stash them away in your freezer for another time - they’ll last up to 3 months. Cubed potatoes can be tossed into dishes straight from frozen. However, frozen whole potatoes are the only kind that needs to be thawed before cooking: to do this, use your microwave’s defrost cycle, or bake in the oven at 175°C for 30 minutes or until piping hot throughout.

Herby skin on mashed potato recipe 1400x919

How to freeze mashed potatoes

Step 1: Make the mash 
If you haven’t already got a dish of mash ready to go, make your mashed potato as you like it. If you’re feeling in a root veg mood, whip it up with celeriac or squash

Step 2: Cool it down 
Once your mash is cooked, it needs to cool down. Put your mash in a deep bowl, then place the bowl into a dish filled with ice-cold water and let the temperature drop to at least room temperature. 

Step 3: Freeze away 
Divide your mash into handy one-person portions so you’ll have the exact amount you need. Put each portion in a resealable, airtight bag, then push out any excess air and freeze each portion as flat as possible (so it doesn’t take up too much space in your freezer). When you want to eat it, simply put in a pan with a little extra butter or cream, stir, and heat through.

Mash tipsmas  1400x919

How to freeze roast potatoes (or homemade chips)

Step 1: Peel, size and shape 
Peel the potatoes (or don’t, depending on your taste), then chop into your desired size and shape.    

Step 2: Blanch
If you’re making roasties, drop into boiling water for 5 mins. Chips are smaller, so only need about 2 mins. Once time is up, plunge the potatoes into iced water, then pat dry.

Step 3: Fry up
Heat some oil or solid fat in a frying pan, then briefly toss your shaped potato in the sizzling fat to coat and add flavour. If you’d prefer, drizzle your potatoes with oil, then bake in the oven for a few minutes.

Step 4: Freeze
Cover then flash-freeze your roasties or chips on a baking tray, flat and not touching, for 6 hrs. When frozen solid they’re ready to be tipped into a freezer bag and kept until you need them.

Pro tip: Freezing improves the texture of roasties and chips, making for a softer, fluffier centre and an extra-crispy coating. But this comes with a crucial caveat: never defrost frozen roasties or chips before cooking, as this will make them mushy. Simply drizzle with oil, season, and roast for as long as your recipe requires.

1400x919 Potatoes

How to freeze baked potatoes

Step 1: Cook and cool 
Cook your baked potatoes until soft on the inside, and the jacket is wrinkled and crispy. Once they’re completely cool, wrap each of them in foil. 

Step 2: Freeze 
Lay your foil-wrapped potatoes down into a plastic container, which will protect them from other odours and flavours in your freezer. Freeze these for up to 3 months, then when you’re ready to use, put them in the oven in their foil and bake until piping hot throughout.

1400x919 Baked potatoes with tomato butterbeans recipe


Cooking with frozen potatoes

The best thing about cooking with frozen potatoes is that you don’t generally need to defrost them before using: spontaneous home-cooked chips, quick-as-a-flash mash and easy-peasy baked potatoes are all within your reach. Need some inspiration for your frozen spuds? Here are our hottest ideas…

1400x919 Oven Chips W Rosemary Salt

How to use leftover potatoes

Besides freezing your potatoes in a variety of ways, you can use up leftover potatoes immediately by cooking up a big spud dish for your next family meal. If you don’t fancy a good old-fashioned tuna jacket potato or impromptu roast dinner, think homely vegan cottage piecheesy Spanish croquettes or plain and simple homemade wedges

Discover even more creative ways to use your spare spuds by reading our handy guide.

1400x919 CottagePie

Our top potato recipes:

Hasselback potatoes


Best roast potatoes

RFO 1400x919 Perfect roast potatoes

Herby chicken and potato bake

RFO October2020 65809 HerbyChickenPotatoBake1400x919

Cauliflower and potato curry

1400x919 Cauliflower and potato curry

BBQ baked potatoes

RFO 1400x919 BBQBakedPotato

Spanish potato tortilla


Freezing and defrosting guidelines 

In order to enjoy optimum flavour and quality, frozen items are best used within 3 months of their freezing date. For more tips on freezing and defrosting food, read our article Love Your Freezer.

Discover our 10 best potato recipes on Tesco Real Food.

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