If six UK pints means the total drink volume, you need about 3.41 litres, so four 1-litre cartons provide 4 litres. Choose ambient-stored UHT cartons if you are buying ahead, or chilled cartons if you have fridge space; smaller bottles suit individual handouts, while a separately labelled milk-free drink can serve guests who need one. Check the purchased packs for allergens, date labels and storage instructions before serving.
Who is this for?
Hosts planning a shared drinks table
If six pints is your total target, four 1-litre cartons provide 4 litres. The 1-litre Yazoo and Sainsbury’s product labels each describe five 200ml servings per carton, so consider whether that serving size fits your guests and cups.
Hosts shopping before the party
Storage matters when you buy ahead. ASDA lists the Yazoo UHT carton for ambient storage unopened, whereas the Sainsbury’s 1-litre milkshake must be refrigerated and has a use-by date. Follow the instructions on the packs you buy.
Hosts serving guests who avoid milk
A separately identified alternative makes the choice clear at the drinks table. ASDA labels the 1-litre Oatly chocolate oat drink free from milk and soya, but its ingredients include oats; ask guests which ingredients they need to avoid.
What should you check before buying?
Decide whether six pints is the total to pour, then choose pack sizes and a serving format. Storage and ingredient labels can change which drinks work for your guests.
Shared 1-litre cartons
Choose when: You want to pour a six-pint total into cups; four 1-litre cartons provide 4 litres.
Trade-off: You need cups and a way to keep any cartons requiring refrigeration chilled.
Individual bottles
Choose when: Handing out separate drinks matters more than pouring from shared cartons.
Trade-off: Smaller bottles mean more packs to count towards the total volume.
Separate milk-free carton
Choose when: A guest needs a drink labelled free from milk; the Oatly chocolate oat drink is one 1-litre example.
Trade-off: Milk-free does not mean suitable for every guest: this drink contains oats.
| Priority | What to check | Your needs |
| Total volume |
The UK pint definition published on legislation.gov.uk makes six pints about 3.41 litres. Check the metric volume on each pack; four 1-litre cartons total 4 litres. |
I need enough for the whole party, rather than six small drinks that may not add up to the requested volume. |
| Storage and dates |
Check whether each pack requires chilling before opening, its date label and its instructions after opening. ASDA lists Yazoo’s 1-litre UHT drink for ambient storage unopened; Sainsbury’s says to refrigerate its 1-litre milkshake. |
If I’m shopping early, I need to know what can wait unopened and what needs fridge space before and during the party. |
| Ingredients |
Read the purchased pack’s ingredient and allergen statements. ASDA labels the Oatly chocolate oat drink free from milk and soya, but lists oats; its Mars 400ml drink lists milk and barley. |
Guests may need different drinks, so I want each option clearly identified rather than assuming a plant-based carton suits every allergy. |
| Serving format |
Compare shared 1-litre cartons with individual bottles by their stated volumes. ASDA lists a 400ml Mars bottle with two 200ml portions and a 330ml Müller FRijj Halloween-flavour bottle. |
Would cups at a drinks table work, or would handing out separate bottles make serving simpler for this group? |
What can catch hosts out?
-
Buying three litres for a six-pint total
Six UK pints are about 3.41 litres, using the pint definition published on legislation.gov.uk. Three 1-litre cartons fall short of that volume.
Buy four 1-litre cartons for a 4-litre total, or add up the metric volumes of a different combination of packs.
-
Applying one opened-pack rule to every drink
ASDA’s Yazoo and Mars listings say to refrigerate their drinks and consume them within three days after opening. Sainsbury’s gives its chilled milkshake five days after opening, without exceeding its use-by date.
Keep each pack’s instructions to hand and follow its own date and storage requirements.
-
Treating milk-free as suitable for every allergy
ASDA labels the Oatly chocolate oat drink free from milk and soya, but its ingredient list includes oats. Other drinks in this selection list milk or barley.
Ask guests about the specific ingredients they avoid, retain the packaging and identify each drink separately when serving.
-
Counting on a particular Halloween sleeve
ASDA’s listing for the 330ml Müller FRijj chilli-chocolate drink says its limited-edition Halloween packaging may vary.
If the packaging is part of your party plan, check the actual pack before buying.
Which brands illustrate the options?
These named products illustrate different pack sizes, storage requirements and ingredients; check the exact variant rather than assuming the same details apply across a brand.
Yazoo
ASDA lists Yazoo Chocolate Milk Drink as a 1-litre UHT product stored at ambient temperature before opening.
- Its label states five servings per carton, which helps plan cups for a shared drinks table.
- It contains milk; after opening, ASDA says to refrigerate it and drink it within three days.
Sainsbury’s
Sainsbury’s lists its Chocolate Milkshake as a 1-litre chilled carton with five servings.
- Four cartons provide 4 litres for a shared-serving plan.
- Keep it refrigerated; once opened, the product instructions say to consume it within five days and not beyond its use-by date.
Oatly
ASDA lists Oatly Oat Drink Chocolate Deluxe Chilled in a 1-litre carton labelled free from milk and soya.
- It provides a separately identifiable milk-free option.
- Its ingredients include oats; ASDA says to refrigerate it after opening and consume it within approximately five days.
Mars
ASDA lists Mars Chocolate Milk Shake Drink in a 400ml bottle with two stated 200ml portions.
- The smaller bottle offers an alternative to pouring from a shared carton.
- Its allergen declaration lists milk and barley; more bottles are needed to reach a six-pint total than with 1-litre cartons.
Müller FRijj
ASDA lists a limited-edition chilli-chocolate-flavour Müller FRijj drink in a 330ml bottle.
- The individual bottle provides a distinct flavour option for guests who want it.
- ASDA says the Halloween packaging may vary; check the actual pack if its appearance matters.
Joybuy product options
This individual-bottle option totals more than six UK pints. It is sold as a protein nutrition shake rather than a conventional milkshake, so consider whether that format and flavour suit the guests you are serving.
No image available
Grenade Salted Caramel Protein Nutrition Shake, 12 × 330ml
The 12 ready-to-drink 330ml bottles total 3.96 litres, allowing individual handouts above a six-pint total. This is presented as an adult protein nutrition shake, not a conventional family milkshake. It contains milk; check the purchased pack’s storage and date instructions, and consume each bottle immediately after opening as directed in the product description.
View on Joybuy
Frequently asked questions
How many litres are six UK pints?
Six UK pints are about 3.41 litres, using the pint definition published on legislation.gov.uk. Four 1-litre cartons provide 4 litres, about 0.59 litres above that target.
How many servings do four 1-litre cartons provide?
The Yazoo and Sainsbury’s 1-litre product labels each state five 200ml servings per carton, so four cartons provide 20 servings at that labelled size. Larger pours will provide fewer servings.
Can chilled milkshake sit on the party table all evening?
Do not leave a drink that requires refrigeration out indefinitely. GOV.UK advises setting the fridge to 5°C or below and says chilled food can be out of the fridge for up to four hours before it must be discarded; also follow the purchased drink’s label.
Is a chocolate oat drink suitable for every guest avoiding dairy?
No. ASDA labels the Oatly chocolate oat drink free from milk and soya, but lists oats as an ingredient. Ask the guest which ingredients they need to avoid and check the purchased carton before serving it.
Can I use a milkshake after its use-by date if it smells fine?
No. GOV.UK explains that a use-by date concerns food safety, whereas a best-before date concerns quality. Identify which date is on the pack and follow its storage instructions.