For festival camping, choose by caffeine per whole can, sugar content and the number of cans you need to carry. Red Bull UK states that its original 250ml can contains 80mg caffeine; Monster Energy UK states 150mg for a 500ml Ultra can, while the stated concentration for Relentless Origin works out to 160mg per 500ml can. A zero-sugar option does not necessarily mean a smaller caffeine serving, and canned multipacks do not replace a separate supply of drinking water.
Individual 250ml cans may be easier to plan around if you do not want a 500ml serving at one time. Red Bull UK states 80mg caffeine per original 250ml can; Monster Energy UK states 150mg per 500ml Ultra can, and Relentless Origin’s stated concentration equates to 160mg per 500ml can.
Check the exact variant as well as its caffeine amount. Monster Energy UK describes its 500ml Ultra can as zero sugar, but states that it contains 150mg caffeine.
Compare can count and individual volume before deciding how many multipacks to take. An eight-pack of 250ml cans and a four-pack of 500ml cans contain the same total drink volume but divide it into different servings.
Start with the amount in one can, then check whether the sugar formulation, container and pack count fit your camping plans.
| Priority | What to check | Your needs |
|---|---|---|
| Caffeine per can | Read the amount for the complete can, not just per 100ml. Red Bull UK states 80mg per original 250ml can; Monster Energy UK states 150mg per 500ml Ultra can; Relentless Origin’s stated 32mg per 100ml equates to 160mg per 500ml can. | I want to know how much caffeine one can adds alongside coffee, tea or other caffeinated products during the day. |
| Sugar formulation | Check the exact variant and its sugars per can or per 100ml. Monster Energy UK describes Ultra as zero sugar; do not apply that description to Monster Original or other variants. | A zero-sugar can matters to me, but I also want to check its caffeine serving. |
| Container and pack | Confirm cans rather than bottles, the number of containers and their individual volumes. Tesco listed Lucozade Energy Original as an 8 x 380ml bottle pack, so it does not meet a cans-only shopping list. | When packing for several people, I want the right number of individual cans without mistaking a bottle multipack for one. |
| Drinking water | Plan drinking water separately from caffeinated cans. The NHS identifies water as a choice for hydration. | My campsite drinks need to include water, rather than relying on energy drinks alone. |
| High-caffeine label | Check the warning and caffeine declaration on the exact pack. UK government food-labelling guidance specifies a high-caffeine warning for drinks containing more than 150mg caffeine per litre. | I want to read the label before packing cans for a group, particularly if others may take one. |
A 500ml can contains five 100ml portions. Relentless Origin’s stated 32mg caffeine per 100ml therefore equates to 160mg for the full can.
Compare full-can amounts and remember other caffeine sources you may consume on the same day.
Tesco listed Lucozade Energy Original in 380ml bottles, whereas its listed Red Bull, Monster Ultra and Relentless examples included canned multipacks.
Check both the container type and individual volume if your packing list calls for cans.
Caffeinated cans and drinking water serve different roles in a campsite drinks plan. The NHS identifies water as a choice for hydration.
Pack water separately, and consider caffeine from other drinks and foods when deciding how many cans to bring.
The format and caffeine figures below refer to the specified products, not every drink made by each brand.
Original Energy Drink is a 250ml-can option; Red Bull UK states 80mg caffeine per can.
Monster Energy UK describes its 500ml Ultra can as zero sugar and states 150mg caffeine per can.
Origin is a 500ml canned option. Your Coca-Cola UK states 32mg caffeine per 100ml, equivalent to 160mg per 500ml can.
Original is a bottle-multipack alternative in the listed festival-shopping options.
These options cover individual cans in several pack sizes for festival packing. Check each variant’s caffeine information and plan drinking water separately.
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Twelve individual 355ml cans offer a pack to divide among campers. The product description states 0g sugar and 113.6mg caffeine per can, advises no more than two cans per day, and says to store the cans in a cool, dry place away from direct sunlight. Consider caffeine from other sources as well.
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Eight individual 250ml cans suit a plan built around smaller servings. Red Bull UK states 80mg caffeine per original 250ml can. This is the regular drink, not Sugarfree; check the pack label for its sugars per can.
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This case combines smaller individual cans with a sugar-free formulation. Its description states 24 x 250ml cans, 0g sugar and 80mg caffeine per can. Plan for the number of cans you will carry and consider other caffeine sources.
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Nine 500ml cans suit a packing plan that calls for larger individual servings. The listing gives 55g sugars per 500ml can and 32mg caffeine per 100ml; check the label’s full-can caffeine information when planning consumption. This is Original Green, not the zero-sugar Ultra variant.
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Four 500ml cans offer a zero-sugar option in a smaller pack count. The listing states 0g sugar, but its caffeine figure differs from Monster Energy UK’s figure for a 500ml Ultra can. Check the exact pack label for caffeine per complete can before deciding how it fits your plans.
It depends on the exact drink. Red Bull UK states 80mg per original 250ml can, Monster Energy UK states 150mg per 500ml Ultra can, and Relentless Origin’s stated 32mg per 100ml equates to 160mg per 500ml can. Check the label when choosing another variant.
UK government food-labelling guidance says drinks containing more than 150mg caffeine per litre must carry a high-caffeine warning stating that they are not recommended for children or pregnant or breast-feeding women. Read the caffeine declaration as well as the warning when comparing individual cans.
Yes. Pack drinking water separately rather than making caffeinated cans your campsite water plan. The NHS identifies water as a choice for hydration.
Rules and retailer conditions need to be distinguished. The Department of Health and Social Care announced in July 2026 an under-16 sales ban for high-caffeine energy drinks in England from April 2027; that announcement is not a current UK-wide ban. Individual retailers may impose their own conditions: Joybuy’s Relentless Origin listing states that delivery requires age verification and that the item is available only to people aged 18 or over.