Blueberry RUBI Energy with cold prepared drink
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Blueberry · 14 drinks1 box · 80mg caffeine each
Blueberry RUBI Energy drink
Blueberry lifestyle

BLUEBERRY · WHAT IT TASTES LIKE

Ripe blueberry. Juicy, smooth and refreshing.

A full blueberry fruit-drink profile with rounded berry flavour and a clean finish that stays refreshing over ice.
How it drinksRUBI sensory guide
Juicy
Pronounced
Sweet
Pronounced
Tart
Light
Refreshing
Very pronounced
Ripe blueberry first, rounded berry sweetness through the middle, then a clean refreshing finish.
Relative flavour impression, not a laboratory measurement.

SAME ENERGY OCCASION

More ways to enjoy it.

Ready-to-drink is brilliant when you want something already made. RUBI is another option: compact sachets, £1 per drink on the current offer, and your choice of still or sparkling water.
RUBI
Ready-to-drink
COST
£1 / drink
Varies
CARRY
Slim sachet
Finished drink
SERVE
Still or sparkling
Ready as sold
FLAVOURS
Mix 4 flavours
Pick what you buy

MADE IN SECONDS

From sachet to lovely cold drink.

Use a portrait image here — ideally Peach & Mango being poured into a clear glass of cold water — so the format feels simple, premium and desirable.
1Tear
2Pour
3Shake
4Enjoy
Open one Peach & Mango single-serve sachet. Pour it into cold water. Shake, serve cold and enjoy.
RUBI Energy sachet being poured into a lovely glass of cold water
Blueberry. Made fresh when you want it. Use one beautiful portrait image of the sachet being poured into cold water.

BLUEBERRY · THE RUBI VERDICT

What people are saying.

★★★★★ RUBI · 4.8/5 brand rating · 25,000+ customers
Reviews confirmed • live
Scroll to read more →
★★★★★
“The thing I like most is that it tastes like blueberry rather than blue raspberry sweets. It’s full and fruity but still really easy to drink cold.”
Hannah L. ✓ Verified buyer Taste
★★★★★
“I keep Blueberry in my desk drawer for the days I want something around 3pm. It takes seconds to make and I don’t have cans taking over the fridge.”
Nadia K. ✓ Verified buyer Convenience
★★★★★
“I used to grab whatever energy drink was on offer, but I prefer having these sachets ready at home. Blueberry feels much more like a drink I’d actually choose for the flavour.”
Rachel D. ✓ Verified buyer Switch from cans
★★★★★
“Blueberry is easily my favourite of the four. It’s the one I was still looking forward to drinking after the first box, so now I always include at least one in my bundle.”
Emily W. ✓ Verified buyer Favourite / reorder

YOUR FIRST RUBI MIX

Four flavours. Three spots.

What's making the cut? Pick any three boxes — or double up on the flavour you already know you'll love.
Peach & Mango RUBI Energy drink and lifestyle 01
RUBI ENERGYPeach & MangoJuicy peach • ripe mango
 Strawberry & Watermelon RUBI Energy drink and lifestyle 02
RUBI ENERGYStrawberry & WatermelonSweet strawberry • juicy watermelon
 Blueberry RUBI Energy drink and lifestyle 03
RUBI ENERGYBlueberryRipe blueberry • smooth finish
 Crisp Apple RUBI Energy drink and lifestyle 04
RUBI ENERGYCrisp AppleFresh apple • crisp finish
THE PICK-3 OFFER

Pick your first 3.

21 drinks. £21.
Choose any 3 flavour boxes. Duplicates welcome. One-time purchase.
PICK MY 3 →

EVERYTHING ELSE

The details.

80MGCaffeine per sachet
0GSugars per sachet
L-THEANINEIncluded in the current formula
VITAMINS B6 + B12Included in the current formula
How much caffeine is in one sachet?
Each RUBI Energy sachet contains 80mg of caffeine.

Contains caffeine: 80mg per sachet.

Follow the caffeine warning and suitability wording printed on the final product pack.

How do I make RUBI Energy?
Empty one sachet into cold water, then shake or stir until fully mixed. Serve cold and use the water quantity shown on the flavour pack.

Empty one sachet into cold water, then shake or stir until fully mixed. Serve cold and use the water quantity shown on the flavour pack.

Can I choose and repeat flavours?
Can I choose my flavours?Yes. The Build Your 3 offer lets you choose any three flavour boxes from the available RUBI Energy range. Can I choose the same flavour more than once?Yes. Double or triple up on the same flavour if that is what you actually want.
Is the 21-drink offer a subscription?
No. The 3-box / 21-drink offer can be bought as a one-time purchase. Subscribe & Save, where available, is shown separately before you add to cart.
Can I subscribe?
Yes, when Subscribe & Save is enabled for the product. Choose your delivery frequency in the buying section before adding to cart.
How many drinks are in each box?
Each flavour box contains 7 single-serve sachets. Choosing 3 boxes gives you 21 sachets in total.
Does RUBI Energy contain sugar?
The current RUBI Energy formulation is zero sugar. Check the final flavour pack for the full nutrition declaration.
Where can I see the ingredients and nutrition information?
Scroll to the Nutrition & Product Information section on this page for the serving facts, formula overview, preparation and pack information.

Per sachet:
Caffeine: 80mg
Sugars: 0g

Check the final flavour pack for the complete legally approved nutrition declaration.

The current RUBI Energy formula includes caffeine, L-theanine and vitamins B6 + B12 in a fruit-flavoured powdered drink sachet.

Exact ingredients and quantities can vary by flavour, so the final pack is the source of truth.

How quickly will my order arrive?
The available UK delivery options and timing are shown at checkout and confirmed again in your order confirmation.
Storage & product details

7 single-serve sachets per box.

Keep sachets sealed until use and follow the storage, net quantity and best-before information printed on the final pack.

The final legal responsible-business and manufacturer / importer details must match the approved information printed on the pack.

Pre-launch factual check: make ingredients, nutrition, preparation volume, net quantity, storage, responsible-business details and caffeine warning match the approved final pack exactly. This note is hidden from customers.