Quick Answer
Yes, you can freeze milk. Freeze it before the use-by date in a clean, sealed container with a little room to expand, and aim to use it within a month. Thaw it in the fridge and use it within 24 hours. Expect some separation, so shake it well and use it mainly for cooking, tea and coffee.
Key Takeaways
- Freeze milk while it is still in date. The freezer pauses the clock, it does not rewind it.
- Skimmed and semi-skimmed milk cope with home freezing better than whole milk, and the longer it stays frozen, the more likely it is to turn grainy.
- Freeze in small portions so you only thaw what you will use within a day.
Can you freeze milk? Yes, with a few caveats
Most households have poured a part-used pint down the sink at some point. So can you freeze milk instead? Yes, and a growing number of UK retailers now say so on the bottle. In 2022 the Co-op began adding a “freeze me” message to its own-brand milk, telling shoppers to freeze it in a suitable, clean container, defrost it in the fridge and use it within 24 hours. The Co-op said it was a response to a survey in which 66% of UK adults did not freeze milk at home and 31% did not know it could be done.
The waste figures explain the push. WRAP, the UK waste reduction charity, has estimated that around 330,000 tonnes of milk are lost in the UK every year, worth more than £150 million, with milk wasted in the home making up nearly 90% of that (as reported by FoodBev).
There are caveats worth knowing before you start:
- Date: the Food Standards Agency (FSA) says to freeze food before its use-by date. Freezing an out-of-date pint does not make it safe.
- Time: the Co-op and Tesco Real Food both say milk is best within a month of freezing. Some other guides allow up to three months, but expect the texture to suffer.
- Texture: frozen milk can separate. This is the main reason many people end up disappointed.
- Thawing: milk should be defrosted in the fridge and used within 24 hours.
As Which? puts it, freezing does not restore freshness, it keeps food in its current state.
Freezing milk in bottles and portions
The method is simple, and the order matters.
- Check the date. Freeze the milk while it is comfortably within its use-by date, ideally the day you realise you will not get through it.
- Pick a clean, sealed container. Coeliac UK’s freezing guide stresses a tight lid. A clean bottle or a freezer-safe tub both work.
- Check the original bottle. Many people freeze milk in its own plastic bottle, but not every pack is designed for it. WRAP has said the dairy sector is working to make clearer which packs can be frozen and to make more of them withstand freezing, so look for freezing advice on the label.
- Leave some space at the top. Liquid expands as it freezes, so pour a little out before you close the lid. This is a sensible precaution rather than a rule we found stated in the guidance, so follow any instructions on your own packaging first.
- Label it with the date. It saves guessing in a month’s time.
Freezing milk in small portions
Portions are the smarter habit. The FSA notes that freezing in individual portions means you only defrost what you need, which matters when the 24-hour clock starts at thawing. A 500ml bottle suits a household that drinks tea all day, while a handful of small tubs suits someone who only needs milk for a white sauce now and then.
For cooking, Which? suggests an ice cube tray. Frozen cubes can go straight into a sauce, or into a mug or iced coffee, and you take out only as many as you need.
Defrosting frozen milk without a mess
The FSA’s advice is to defrost food in the fridge, ideally overnight, so it never spends long in the temperature range where bacteria multiply. GOV.UK guidance for food businesses says bacteria can grow when defrosting food sits between 8°C and 63°C.
In the fridge (best method). Tesco Real Food says to put the bottle in the fridge door overnight, with a couple of sheets of kitchen paper wrapped round it if condensation worries you. It can take up to 12 hours. The FSA also suggests using a container large enough to catch drips.
In cold water (when you are in a hurry). Submerge the sealed bottle in a bowl of cold water. Tesco Real Food says about an hour should do it for a standard bottle.
What to avoid. Do not thaw milk on the worktop, and Tesco Real Food advises against defrosting it in the microwave. Which? also warns against leaving high-risk foods such as milk to thaw on the counter.
Once it has thawed, give the bottle a good shake and use it within 24 hours. The guidance we reviewed gives a 24-hour limit for thawed milk but no rule on refreezing it, so freeze in portions and thaw only what you will use.
What happens to the taste and texture of frozen milk?
The change you are most likely to notice is texture rather than flavour. Tesco Real Food warns that milk frozen for more than a month can separate and turn grainy. In plain terms, the fat and the watery part no longer sit together as they did in the bottle. A hard shake usually brings it back to something close to normal, but it will not always look quite as smooth as fresh milk.
The guides we reviewed focus on texture and say little about flavour, and we have not run our own taste test, so we are not claiming a verdict on that. Our practical reading is this: if you plan to drink a glass of thawed milk on its own, you will spot any change. If you are cooking with it, you almost certainly will not.
If thawed milk smells sour, or you are unsure how it was stored, throw it away.
Best uses for thawed milk
Cooking hides the texture issues, so this is where frozen milk earns its place. Good options include:
- Sauces: white sauce, cheese sauce, parsley sauce and custard.
- Puddings and breakfasts: rice pudding, porridge and overnight oats.
- Batters: pancakes, Yorkshire puddings and the batter for a toad in the hole.
- Soups and mash: a splash of milk goes a long way in creamy soups and mashed potato.
- Baking: cakes, scones and bread. Arla notes that milk works well in warm baked goods, which themselves freeze well.
- Hot drinks: milk ice cubes drop straight into tea or coffee.
For a Christmas week when the fridge is full and the shops are shut, it is worth freezing a spare pint or two in advance. Thawed milk handles the cooking and the cups of tea, and the drinking milk can stay fresh in the fridge.
Which milks freeze better?
Published guidance does not rank every milk type, so the table below combines what the sources say with some reasonable interpretation, which we have marked.
| Milk type | How it freezes | Basis |
| Skimmed | Better suited to home freezing | Tesco Real Food |
| Semi-skimmed | Better suited to home freezing | Tesco Real Food |
| Whole (blue top) | Harder to freeze well because of the higher fat content | Tesco Real Food |
| Long-life (UHT), unopened | Rarely worth freezing as it keeps in the cupboard until opened | Interpretation, check the pack |
| Long-life (UHT), opened | Treat like fresh milk and follow the pack’s fridge advice | Interpretation, check the pack |
This guide is about cow’s milk. Breast milk has its own storage and freezing rules, and the NHS and NICE publish guidance on that. We have not covered plant-based milks, as the sources we reviewed give no clear advice on them.
Frequently Asked Questions
Can you freeze milk in the plastic bottle?
Often yes, but check the label first. Some packs are designed to withstand freezing and others are not. Leave a little space at the top because liquid expands as it freezes, and keep the lid tight. A clean freezer-safe tub is a reliable alternative.
How long can you freeze milk for?
For the best quality, use it within a month, which is the advice from the Co-op and Tesco Real Food. Some guides allow up to three months, but milk frozen for longer is more likely to separate and turn grainy.
How do you defrost milk quickly?
Put the sealed bottle in a bowl of cold water, which Tesco Real Food says takes about an hour. Avoid the microwave and the worktop. If you have time, the fridge is the safest method and the one the FSA recommends.
Why is my thawed milk grainy or separated?
Freezing can make milk separate, and the effect is stronger the longer it stays frozen. Shake the bottle well before use. If it still looks unappealing, use it in cooking, where you will not notice. If it smells sour, throw it away.
Can you freeze milk after the use-by date?
No. The FSA says to freeze food before its use-by date. Freezing pauses the clock but does not make out-of-date milk safe, so freeze it while it is still comfortably in date.
