Buy an energy-drink multipack for an airport trip if the cans are for use before security, after arrival or, where appropriate, in checked baggage—not on the assumption that they can pass through security in hand luggage. GOV.UK says containers larger than 100ml cannot pass through security at most UK airports, even when partly full; the 250ml, 380ml and 500ml cans discussed here all exceed that size. Choose the pack count for the drinks you will use, then compare caffeine per can and sugar separately.
If you plan to take drinks through security, check the rules at your departure and transfer airports before buying. GOV.UK says containers over 100ml cannot pass through security at most UK airports, even if partly full.
A sugar-free name does not tell you how much caffeine is in a can. Red Bull Great Britain states 80mg per 250ml Red Bull Sugarfree can; Monster Energy UK states 160mg per 500ml Monster Absolutely Zero can.
A multipack may fit a shared trip or a self-catering stay when the cans will be used after arrival. Check the number of cans, their individual size and how you intend to transport them.
Start with where the cans will be used; pack size, caffeine and sugar become useful comparisons once the travel plan works.
| Priority | What to check | Your needs |
|---|---|---|
| Airport security | Check each can’s capacity and the rules at departure and transfer airports. GOV.UK says containers over 100ml cannot pass through security at most UK airports, even when partly full. | I need drinks for after security or after arrival, rather than a multipack I expect to carry through the checkpoint. |
| Caffeine per can | Compare the stated amount for the exact can size and account for other caffeine consumed that day. Red Bull Great Britain states 80mg per 250ml Sugarfree can; Monster Energy UK states 160mg per 500ml Absolutely Zero can. | If I choose a larger can, I want to know its caffeine amount—not assume that a sugar-free label means less caffeine. |
| Sugar and ingredients | Read the sugar declaration per can or per 100ml, alongside the ingredients. Monster Energy UK states 0g sugar per 500ml Absolutely Zero can and 55g per 500ml Original can. | Reducing sugar matters to me, but I will choose the sugar option and check caffeine as separate decisions. |
| Practical quantity | Compare can count, individual volume and when the drinks will be used. Tesco lists formats including 8 × 250ml Red Bull Sugar Free, 4 × 500ml Monster and 8 × 380ml Lucozade Energy Original. | For a short trip, I would rather match the pack to the people sharing it and the drinks we will use than buy extra cans to carry. |
GOV.UK’s restriction concerns the size of each liquid container, not whether it is a can or bottle. The 250ml, 380ml and 500ml formats discussed here exceed the 100ml limit used at most UK airports.
Check departure and transfer-airport rules. If those rules prevent you taking the cans through security, use them before screening, place them in checked baggage where appropriate or decide what to buy afterwards.
A pack carried to a checkpoint against its liquid rules may have to be left behind.
Monster Energy UK states that a 500ml Absolutely Zero can has 0g sugar and 160mg caffeine. Sugar and caffeine are different parts of the label.
Compare caffeine for the exact can size and include caffeine from other drinks and foods when considering how much you will have that day.
More cans do not make a pack easier to take through security. Unused cans also add to what you have to carry.
Work out how many drinks will be used before departure, shared or kept for after arrival, then choose a pack count that fits that plan.
Extra cans mean extra luggage weight if you take them with you.
The 250ml Sugarfree can provides a smaller individual format to compare with the 500ml examples, though it remains above the usual pre-security container limit.
Its stated 500ml Original and Absolutely Zero figures illustrate why sugar and caffeine should be checked independently.
Tesco lists Relentless Origin in a 4 × 500ml format to consider for use after arrival or for sharing.
Lucozade describes its Energy range as containing glucose; compare the particular variant’s nutrition label when choosing a pack.
These Red Bull multipacks offer 250ml cans in different pack counts and sugar options for drinks you plan to use before security or after arrival, or transport in checked baggage where appropriate. Check the rules for your journey before planning to carry cans through security.
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An eight-can option when the drinks are for use before security or after arrival. Each can is 250ml, above the 100ml container limit that GOV.UK says applies at most UK airport security checkpoints.
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A Sugarfree pack to consider for sharing or a longer stay. Red Bull Great Britain states 80mg caffeine per 250ml Sugarfree can; each 250ml container exceeds the 100ml limit used at most UK airport security checkpoints.
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A twelve-can format for drinks intended to be shared or used after arrival. Check the label when comparing sugar and caffeine; each 250ml can is above the 100ml container limit used at most UK airport security checkpoints.
Do not plan to carry standard 250ml, 380ml or 500ml cans through a checkpoint applying the 100ml container rule. GOV.UK says containers over 100ml cannot pass through security at most UK airports, even when partly full. Check your departure and transfer airports before travelling.
No. A 250ml container exceeds the 100ml limit used at most UK airport security checkpoints, regardless of how much drink remains inside it. Check the applicable airport rules rather than relying on the can’s smaller size relative to other energy drinks.
No: sugar and caffeine must be checked separately. Red Bull Great Britain states 80mg caffeine per 250ml Sugarfree can, while Monster Energy UK states 160mg per 500ml Absolutely Zero can, which it lists as containing 0g sugar. Compare the exact product and can size you intend to buy.
NHS guidance says not to have more than 200mg caffeine a day during pregnancy. That total includes caffeine from energy drinks as well as sources such as coffee, tea, cola, chocolate, tablets and some supplements; check the amount in each drink rather than judging by pack size.