Adults sharing cans during a match
If several people want their own can, compare the number of cans as well as their size. Tesco Groceries lists Red Bull packs of 12 × 250ml, while Sainsbury's lists Relentless Origin at 4 × 500ml.
Who is choosing these packs?
Adults avoiding sugar
Check the sugar declaration for the exact variant. Tesco Groceries lists 0g sugars per 100ml for Red Bull Sugarfree; its Original version lists 11g per 100ml. Sugarfree still contains caffeine.
Adults who prefer one larger can
A 500ml can may be the intended portion rather than something to divide among viewers. Monster Energy UK states 160mg caffeine per 500ml Original Green can; Sainsbury's lists Relentless Origin at 32mg per 100ml, also equivalent to 160mg per 500ml can.
What should you check before choosing?
Choose a can size and pack count for the group first, then read caffeine and sugars for the portion each person is likely to drink.
| Priority | What to check | Your needs |
|---|---|---|
| Can and pack size | Compare can volume and can count separately. Tesco Groceries lists 12 × 250ml Red Bull packs; Sainsbury's lists 4 × 500ml Relentless Origin, and Your Coca-Cola UK lists 12 × 500ml Monster Original. | We're sharing drinks, so I want enough individual cans without choosing a 500ml portion for everyone by default. |
| Caffeine per can | Read mg per 100ml alongside can size. Tesco Groceries lists 32mg per 100ml for the cited 250ml Red Bull cans, or 80mg per can; Sainsbury's lists the same concentration for 500ml Relentless Origin, or 160mg per can. | If I plan to have a can during the match, I want to know the caffeine in the whole can, not just the concentration on the label. |
| Sugars | Check sugars per 100ml and per intended can. Tesco Groceries lists 0g per 100ml for Red Bull Sugarfree and 11g per 100ml for Original; Monster Energy UK lists 55g per 500ml Original Green can. | I'd like a no-sugar option, or a clear comparison of the sugar in the can I'll actually drink. |
| Label warnings | Read the warning on the exact drink before ordering. Tesco Groceries lists Lucozade Alert Original as not recommended for children, pregnant or breast-feeding women, or people sensitive to caffeine. | Someone in the household may need a different drink, so I want to check who the energy drink is intended for. |
Common mistakes when comparing packs
-
Comparing caffeine concentration but not can size
At 32mg caffeine per 100ml, a 250ml can contains 80mg and a 500ml can contains 160mg. Tesco Groceries and Sainsbury's list that concentration for the cited Red Bull and Relentless products respectively.
Compare the amount in the whole can before deciding how many cans suit the viewing session.
-
Choosing a case by its total volume alone
Your Coca-Cola UK lists Monster Original as 12 separate 500ml cans. That format gives each person a larger individual portion than the 12 × 250ml Red Bull packs listed by Tesco Groceries.
Count the adults who want a can and choose the individual can size they intend to drink.
-
Assuming sugar-free means caffeine-free
Tesco Groceries lists 0g sugars per 100ml for Red Bull Sugarfree, but its label also declares 32mg caffeine per 100ml.
Compare sugar and caffeine separately, and read the high-caffeine warning on the pack.
-
Assuming a listed pack is ready for delivery
Pack listings describe a format, but a viewing-session order also depends on the selected retailer's current availability and delivery arrangements.
Check stock, delivery details and any age-verification steps shown at checkout before relying on the order.
Brands and retailers to compare
Red Bull
Tesco Groceries lists Original and Sugarfree in 12 × 250ml packs, making them relevant when smaller individual cans matter.
- The Sugarfree listing declares 0g sugars per 100ml.
- Both cited versions declare 32mg caffeine per 100ml; Original lists 11g sugars per 100ml.
Monster
Monster Energy UK describes Original Green as a 500ml can, and Your Coca-Cola UK lists a 12-can case of that variant.
- The case provides 12 individually packaged 500ml cans.
- Monster Energy UK states 160mg caffeine and 55g sugar per 500ml Original Green can; do not apply those figures to other Monster variants.
Relentless
Sainsbury's lists Relentless Origin in a 4 × 500ml pack for shoppers who want fewer, larger cans.
- The listing identifies both the four-can count and the 500ml can size.
- Its label lists 32mg caffeine and 3.7g sugars per 100ml; a full 500ml can therefore contains 160mg caffeine.
Lucozade
Tesco Groceries lists Lucozade Alert Original as a 500ml single can, providing a label comparison for shoppers considering that flavour.
- The cited label declares 19.1g sugars per 500ml and 32mg caffeine per 100ml.
- Confirm the pack format offered by the chosen retailer rather than treating the single-can listing as a multi-pack.
Tesco
Tesco Groceries provides listings for both Red Bull 12 × 250ml variants, including their nutrition and caffeine declarations.
- The two listings allow a comparison of Original and Sugarfree in the same can and pack format.
- Read the current pack label when buying, as formulations can change.
Sainsbury's
Sainsbury's lists Relentless Origin as a 4 × 500ml multi-pack with nutrition and caffeine information.
- Its listing makes the four-can format and 500ml serving size clear.
- Check current availability for the location and order time before planning around the pack.
Joybuy multi-pack options
These options include smaller Red Bull cans, a 355ml CELSIUS pack and larger 500ml Monster cans. Choose by the intended individual portion and check the exact variant's label.
No image availableRed Bull Energy Drink 12 × 250ml
For adults who want smaller individual cans of the Original version. Tesco Groceries lists 32mg caffeine per 100ml, equivalent to 80mg per can, and 11g sugars per 100ml; check the current pack label and its high-caffeine warning.
No image availableRed Bull Sugarfree Energy Drink 12 × 250ml
Smaller cans for a group that wants a no-sugar variant. Tesco Groceries lists 0g sugars and 32mg caffeine per 100ml for this pack, equivalent to 80mg caffeine per can; it remains a high-caffeine drink.
No image availableCELSIUS Kiwi Guava 12 × 355ml
This 12-can format offers a 355ml individual portion. If that size suits the group, check the exact can's caffeine and sugar declarations and its warnings before choosing it.
No image availableMonster Energy Ultra Zero Sugar 4 × 500ml
A four-pack for adults deliberately choosing larger individual cans and the Ultra Zero Sugar variant. Read this variant's own caffeine declaration and warnings rather than using figures for Monster Original.
No image availableMonster Energy Aussie Style Lemonade 4 × 500ml
This four-pack suits a group choosing 500ml cans rather than smaller portions. Check the Aussie Style Lemonade label for caffeine and sugars per whole can; figures for Monster Original do not describe this variant.
Questions about cans and caffeine
How much caffeine is in a 250ml can compared with a 500ml can?
At a labelled concentration of 32mg caffeine per 100ml, a 250ml can contains 80mg and a 500ml can contains 160mg. Tesco Groceries and Sainsbury's list that concentration for the cited Red Bull and Relentless products; check other variants individually.
Which cited 250ml multi-pack has no sugar?
Tesco Groceries lists 0g sugars per 100ml for Red Bull Sugarfree 12 × 250ml. It contains sweeteners and 32mg caffeine per 100ml, so its sugar declaration does not remove the need to check caffeine.
What should a pregnant or breast-feeding viewer check?
Check the warning on the exact drink: the cited Tesco Groceries Lucozade Alert label says it is not recommended for pregnant or breast-feeding women. For pregnancy, the NHS advises no more than 200mg caffeine a day from all sources; a 500ml can labelled 32mg per 100ml contains 160mg.
Should energy-drink cans be the only drinks available during a long match?
No. The NHS identifies water as a hydration choice and advises caffeine in moderation. Keep water available alongside any energy-drink multi-pack.
Does the announced under-16 sales ban apply across the UK?
The Department of Health and Social Care stated in July 2026 that it will ban sales to under-16s in England of drinks containing more than 150mg caffeine per litre. That announcement does not establish an effective date or rules for Scotland, Wales or Northern Ireland; check the current rules where the purchase takes place.