Hayati Rubik 7000 Vape Kit – Mr Blue

Mr Blue: the blue slushie hit in your Rubik 7000

Some flavours are pure nostalgia in a puff, and Mr Blue is one of them. Load it into the Hayati Rubik 7000 as a fresh prefilled pod kit and you get that unmistakable blue-sweet rush, the taste that instantly conjures up seaside slush machines, blue raspberry ice pops, and the electric-blue sweets from the corner shop. It is fun, it is punchy, and it does not take itself too seriously, which is exactly the point.

Mr Blue has become a modern vape classic for good reason. It hits that perfect crossroads between sweet and sharp, candy and fruit, familiar and moreish. Here is what it actually tastes like when you settle in with it.

The taste, from first puff to finish

The first inhale is a burst of sweet blue raspberry. It is bold and instantly recognisable, that candied, slightly artificial-in-the-best-way blue flavour that does not exist in nature but lives happily in every childhood memory of blue slush and fizzy sweets. It arrives sweet and bright, with a candy-shop generosity that grabs your attention straight away.

The mid-vape is where the tang kicks in. Underneath all that sweetness runs a proper raspberry sharpness, a tart, mouth-watering edge that stops Mr Blue from being one-dimensionally sugary. This push and pull between sweet and sour is the whole magic of the flavour. Just as the sweetness threatens to become too much, the tartness cuts through and keeps every draw lively. It is the same trick that makes a good blue slushie so hard to put down.

On the exhale, you get a cool, sweet-and-sour finish with that blue-raspberry note trailing on the lips. There is often a faint icy lift to the close that echoes the frozen-slush character, refreshing rather than heavy. The aftertaste stays fruity and tangy, and it tends to leave you wanting the next puff, which is precisely why Mr Blue has such a loyal following.

Who it is for and when to vape it

Mr Blue is a crowd-pleaser, but it especially suits the vaper who loves sweet, candy-fruit flavours with a bit of a kick. If your favourites lean toward blue raspberry, mixed berry sweets, slushies, or anything from the fizzy-sweet aisle, this is your flavour. It is bright and energetic rather than mellow and relaxing, so it fits an upbeat mood.

Timing-wise, it is a brilliant daytime and social flavour. The tangy sweetness works well when you are out and about, on a break, or looking for something fun rather than sophisticated. It is refreshing enough for a warm afternoon thanks to that cool slush edge, and lively enough to keep things interesting during a long day. Where a soft dessert flavour lulls you, Mr Blue perks you up.

• Daytime: the bright, tangy sweetness is an easy pick-me-up.
• Out and about: a fun, sociable flavour that suits being on the go.
• Warm weather: the icy slush edge makes it genuinely refreshing.
• When you want a treat: it scratches the sweet-and-sour candy craving without the sugar.

How it compares, and what to rotate with

Against a straight, single-fruit vape, Mr Blue is bolder and more confectionery, built around that candy blue-raspberry identity rather than a realistic fruit. Compared with a soft dessert or a smooth shisha flavour, it is far sharper and more energetic, all tang and brightness where those are warm and mellow. And set beside a plain menthol, it keeps a fruity, sweet core while borrowing just a touch of that cool finish.

Because it is so sweet and tangy, Mr Blue can tire the palate if you vape nothing else for days on end, as the tartness and sugar together are quite intense. To keep it tasting vivid, rotate it with something that gives your tongue a break. A clean menthol or mint is the classic reset, and coming back to Mr Blue afterward makes the blue-raspberry pop all over again. A softer flavour such as a mild dessert or a gentle fruit also works as a contrast, letting the bold tang feel like a treat rather than the default. Avoid pairing it back to back with another very sour flavour, since two tangy hits in a row can start to feel harsh.

Getting the truest taste from Mr Blue

To keep that sweet-and-sour balance singing, a little attention pays off.

• Let a fresh pod settle: after fitting a new prefilled pod, pause a moment so the wick soaks through. The opening blue-raspberry hit lands cleaner and truer for it.
• Take smooth, medium draws: Mr Blue reveals its sweet-then-tart arc best on a steady pull. Very short puffs can catch only the sweetness and miss the tangy payoff underneath.
• Notice the flavour peak: a fresh pod carries the brightest tang. As it nears the end, the sourness can soften first, which is the natural cue to swap in a new pod.
• Keep it cool: storing spare pods away from heat and sunlight protects those sharp top notes, which are the first thing to fade in warm conditions.
• Mind the strength: UK prefilled pods use nic salt up to 20mg/ml (2 percent), which keeps even a punchy flavour like this smooth on the throat. Space your draws if you want it gentler.

Value and everyday use

As a prefilled pod kit rated for up to around 7000 puffs, the Rubik 7000 running Mr Blue is a tidy, cost-effective way to keep a bold favourite in daily rotation. You get a generous run of puffs from a compact setup, and Mr Blue is a smart flavour to commit those puffs to because it stays fun rather than fatiguing, provided you rotate it sensibly. Its wide appeal also makes it a safe choice if you are not sure what you will be in the mood for, since a sweet-and-sour blue raspberry is about as universally likeable as vape flavours get.

Who might want to skip it

Mr Blue is not for the vaper who prefers subtle, natural, or grown-up flavours. If you dislike sweet candy profiles, find sour notes off-putting, or gravitate toward tobacco, dessert, or realistic fruit, this bright artificial blue-raspberry will likely feel too loud and too sugary. It is proudly a fun, punchy, sweet-and-sour candy flavour, and it is happiest with people who want exactly that kind of lively hit.

Flavour FAQ

What flavour is Mr Blue meant to be?

It is a blue raspberry blend, the sweet-and-sour candy and slushie style rather than a realistic berry. Think blue slush, blue raspberry ice pops, and electric-blue fizzy sweets. It is instantly recognisable and squarely aimed at fans of bright, candy-fruit flavours.

Is Mr Blue sweet or sour?

Both, and that balance is the point. It opens sweet and candied, then a tart raspberry sharpness comes through in the middle to stop it becoming sickly. The interplay between the two is what makes it so moreish and keeps every draw lively.

Is there any cooling in Mr Blue?

There is often a light, icy lift on the finish that nods to the frozen-slush character, which makes it refreshing rather than heavy. It is not a menthol flavour and will not give a strong cold hit, but that subtle cool edge is part of what makes it so easy to enjoy in warm weather.