waterdrop Microenergy Set, 36 caffeine cubes

waterdrop MICRODRINK: waterdrop Microenergy is a set of 36 sugar-free water flavouring cubes in blackberry, mango and cherry flavours. Each cube is described as containing around 90 mg of natural caffeine and is dissolved in 400–600 ml of water, so it suits buyers who want a portable flavoured drink with caffeine rather than a ready-to-drink can.

At a glance

The manufacturer describes the set as sugar-free and says the cubes contain natural caffeine from ingredients including guarana, guayusa and kola nut.
Dissolve one cube in still or sparkling water. The suggested water volume is 400–600 ml.
The set includes blackberry, mango and cherry flavour options.

Price

£23.98Save 20%

Reference price: ~~£29.97~~

Price checked: 13 Nov 2026

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Often bought together

waterdrop® Microenergy Set, Energy Drink, 36 Water Flavouring Hydration Cubes, Blackberry, Mango and Cherry Flavour, Sugar Fr

£21.45

Pros and cons

Pros

Three flavours in one 36-cube set give buyers alternatives without choosing a single flavour.
Cubes can be added to still or sparkling water, avoiding the need to buy a ready-mixed drink.
The stated caffeine content makes the per-cube serving easier to gauge than an unspecified caffeine blend.

Cons

This is a mix-in product that needs water and time to dissolve, rather than a ready-to-drink beverage.
The listing does not provide an exact calorie figure despite describing the drink as low calorie.

Technical specifications

8 specifications

Identity
Brand	Waterdrop Microdrink GmbH
Country of origin	Germany

Product details
Quantity	36 Water Flavouring Hydration Cubes
Flavours	Blackberry, Mango and Cherry
Caffeine per cube	around 90mg of natural caffeine
Preparation water volume	400-600ml of water
Sugar	zero sugar
Package dimensions and weight	19.7 x 18.7 x 3.2 cm; 75.6 g

What to know before buying

Listing details to confirm

The listing title says 90 mg natural caffeine, while the product details describe each cube as containing around 90mg. Treat the quantity as approximate. The title also claims vitamin C and B, but the supplied product details do not specify vitamin amounts. The listing calls the drink fizzy while preparation allows still or sparkling water, so the drink's fizz depends on the water used. It describes the set as low calorie but supplies no calorie figure. Use the suggested 400–600 ml of water per cube.

Who is it for?

A good fit for

People who want a portable, sugar-free flavoured drink with caffeine added to water.
Buyers who prefer a mix of blackberry, mango and cherry flavours and can prepare each drink when needed.

Less suited to

Anyone looking for a ready-to-drink beverage or a caffeine-free option.
Buyers who need a confirmed calorie amount or quantified vitamin content before purchasing.

waterdrop Microenergy Set, 36 caffeine cubes · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 1,074 ratings

5 stars75%75%
4 stars11%11%
3 stars9%9%
2 stars4%4%
1 star1%1%

Customer feedback is positive about the flavour mix, particularly berry and cherry, and some say the cubes help them drink more water. Caffeine content and sugar-free formulation are also mentioned favourably. Value opinions are mixed, with some finding the set worthwhile and others considering it overpriced. These are reported perceptions, not confirmation of the listing's claims. The approximate caffeine amount and 36-cube format may help buyers judge fit, while the lack of an exact calorie figure may matter to those comparing drinks closely.

Positive themes

Customers reportedly enjoy the flavour combination, especially berry and cherry.
Some customers say the cubes help them drink more water.
Caffeine content and the sugar-free quality receive positive mentions.