Hayati Pro Ultra Plus 25000 Prefilled Pod Kit – Mr Blue

Mr Blue on the Hayati Pro Ultra Plus 25000: the blue slushie that keeps its cool

Some flavours introduce themselves quietly. Mr Blue is not one of them. The second it lands on the Hayati Pro Ultra Plus 25000, you get that instantly recognisable blue raspberry rush, the same sweet, candied fruit note that plenty of UK vapers first met in cinema slush cups and corner-shop ice lollies. It is loud, playful and cooling all at once. Because you are running it through a refillable pod platform rather than a throwaway bar, the profile stays even and honest from the first draw of a fresh pod right through to the final one.

What Mr Blue actually tastes like

Strip away the branding and Mr Blue is essentially a blue raspberry slushie rendered in vapour. On the inhale you get a bright, sugary burst that reads far more as sweet berry than sharp citrus, with a faint sherbet tang tucked underneath to stop it turning flat or sickly. It is not chasing the taste of a real raspberry picked from the garden. It leans happily into the artificial, nostalgic version of the fruit, the kind that stains your tongue blue and pulls you straight back to summer holidays. That is the entire charm, and it is why the flavour has become such a staple.

The middle of the vape is where Mr Blue settles into its groove. That opening sweetness rounds off into a smoother, jammy berry body, and a gentle cooling breeze rolls in behind it. It is not a full-blown menthol blast, more of a soft chill that keeps the sugar feeling clean rather than cloying. On the exhale you are left with a lingering candied-berry aftertaste, a little like the last mouthful of a slush drink once the ice has half melted. It fades cleanly and does not coat your palate in a heavy syrupy film, which is a big part of why so many people can happily vape it all day.

Who it suits and when to reach for it

Mr Blue is a sweet-tooth flavour through and through, so it will land best with vapers who enjoy confectionery and soft-drink profiles rather than dry tobacco or sharp herbal notes. If you already gravitate toward blue raspberry sweets, energy-drink flavours or bubblegum, this will feel like home. It is a brilliant all-day companion because the sweetness is balanced enough not to overwhelm, and the light chill resets your mouth between puffs.

• Long sessions: gaming, a boxset marathon or a lazy Sunday, where you want something moreish that does not tire you out.
• Warm weather: the cooling edge makes it genuinely refreshing on a hot afternoon in the garden.
• After food: the candied sweetness works nicely as a pudding substitute when you fancy something sugary without the calories.

How it compares, and what to rotate with

Against other blue-family flavours, Mr Blue sits in the sweeter, rounder camp. A Blue Razz Lemonade will hand you more fizz and citrus bite, while a straight Blueberry leans darker and more true to the real fruit. Mr Blue is the crowd-pleasing middle ground: sweet, cool and easy, with none of the sourness some blue raspberry recipes chase. If you have vaped Mad Blue or Blue Frozen before, you will recognise the family resemblance, though Mr Blue tends to feel a touch more like liquid sweets and a touch less icy.

Because it is so sweet, palate fatigue is the main thing to watch. Vape one flavour non-stop and your tongue eventually stops registering the finer notes. The easy fix is to keep a contrasting flavour on standby and swap between them. A crisp menthol, a tart citrus like Lemon and Lime, or a clean red-fruit such as Watermelon Ice all make good foils, resetting your taste buds so Mr Blue hits fresh again each time you come back to it.

Getting the truest taste from it

To get Mr Blue at its best on a refillable setup, give a freshly filled pod a few minutes to fully wick before you start vaping. Rushing the first puffs on a dry coil mutes the sweetness and can leave a faint burnt edge that has nothing to do with the flavour itself. Once the pod is properly saturated, the blue raspberry note comes through cleaner and brighter. Storing your device somewhere cool and out of direct sunlight also helps, since heat can dull the top notes over time. A slightly cooler draw tends to sharpen the candied character, while a warmer one pushes the sweetness forward, so it is worth experimenting to find your preference.

Frequently asked questions about Mr Blue

Is Mr Blue the same as blue raspberry?

In practice, yes. Mr Blue is a blue raspberry slushie profile: sweet, candied and lightly cooled. Different brands tune it slightly differently, and this version leans toward the smooth, sugary end rather than the sour end of the spectrum.

Is Mr Blue too sweet for all-day vaping?

Most people find it comfortable as an all-day vape thanks to that gentle cooling finish, which keeps the sugar from building up. If you are especially sensitive to sweet flavours, pairing it with a menthol or citrus in rotation keeps it feeling fresh.

What flavour should I pair Mr Blue with?

Contrast works best. A sharp citrus, a clean mint or a tart berry all sit at the opposite end of the flavour map, so alternating with one of those stops your palate adjusting to the sweetness and keeps Mr Blue tasting vivid.

Nicotine products are for existing smokers and vapers aged 18 and over. In the UK, nicotine-containing e-liquid is capped at 20mg/ml, so choose the strength that matches your needs.