Rainbow by Bar Juice 5000: the sweet-shop classic that never grows up
Close your eyes, take a draw of Rainbow, and you are ten years old with a paper bag of fruit chews. That is the entire pitch, and Bar Juice 5000 delivers it with a grin. This nic salt e-liquid bottles the flavour everyone already knows from those little rainbow-coloured fruit sweets, the ones you tip out and eat by the handful, and turns it into an unapologetically fun, sugary all-day vape you can refill in your own pod or tank.
Rainbow does not pretend to be sophisticated and it is all the better for it. Where some flavours ask you to slow down and appreciate the layers, Rainbow just wants you to enjoy yourself. As a bottled nic salt it is brilliant value and endlessly cheerful, the kind of juice that puts a small smile on your face without you quite noticing.
What it actually tastes like, puff by puff
The first inhale lands as a burst of mixed fruit candy. It is instantly recognisable, that sweet, chewy, slightly artificial fruitiness that says sweets rather than fresh fruit, and that is exactly the intention. You get a jumble of red and orange fruit notes up front, a bit of strawberry, a bit of orange, all wrapped in sugar. It is bright, bold and sweet from the very first contact, no slow build here.
Through the mid-vape, the other colours of the bag come out to play. The greener and yellower fruit notes emerge, a hint of lime and lemon tang, maybe a touch of green apple, which adds a welcome flash of sourness that keeps the sweetness from becoming flat. This is where Rainbow shows a little cleverness, because that mild tartness in the middle stops the whole thing being one big wall of sugar and gives the flavour some lift and movement. It genuinely does taste like working through a mix of different coloured sweets.
The exhale and aftertaste stay true to the theme. As you breathe out you get a final rush of sweet, chewy fruit with that candy-shop character, and the aftertaste lingers as a sugary fruit note on the tongue. It is sweeter and stickier on the finish than a fresh-fruit vape would be, which is completely on brand for a sweets flavour. There is no cooling at all, so Rainbow stays warm, soft and comforting from start to finish.
Who it is for and the mood it matches
Rainbow is made for the sweet tooth. If you love dessert and candy flavours, if a sugary vape makes you happy rather than queasy, this will be right up your street. It is also a fantastic choice for people who found their way to vaping partly to satisfy cravings, because it scratches that sweet-treat itch without any actual sugar or calories. Ex-smokers who never much liked tobacco or mint often land on flavours exactly like this one.
By mood and moment, Rainbow is a comfort and fun flavour rather than a refresher. It is lovely in the evening in front of the telly, on a cosy afternoon, or any time you want a little pick-me-up that feels like a treat. It pairs surprisingly well with a hot drink, since the candy sweetness plays nicely against tea or coffee. It is less suited to right after a big meal or on a scorching hot day, when many people crave something crisp and cold instead, but as a feel-good anytime vape it is hard to beat.
How it compares, and keeping your palate fresh
Among candy vapes, Rainbow is one of the most recognisable, because it copies a sweet that nearly everyone has eaten. Compared with a single-fruit candy like a strawberry laces flavour, Rainbow is busier and more varied thanks to its mix of fruit notes. Against a sour sweets flavour, it is sweeter and gentler, since the tartness here is a supporting note rather than the main event. If you have vaped other rainbow or fruit-chew style e-liquids, this is a strong, faithful version of that idea.
The trade-off with any heavily sweet flavour is palate fatigue, and Rainbow is sweet enough that your taste buds can get numb to it if you vape nothing else. The best way to keep it enjoyable is to rotate it with something clean and contrasting, so a menthol, a lemon mint, or a sharp citrus works perfectly as a reset between sessions. A crisp fresh fruit like apple also helps. What you should not do is pair it with another sweet dessert or candy flavour, because two sugar-heavy juices back to back overwhelm the palate fast and everything starts tasting the same.
Getting the truest taste, plus storage, coils and value
To enjoy Rainbow at its best, use a reasonably fresh coil, because sweet, sugary liquids are exactly the kind that build up residue and start tasting muted or slightly burnt as a coil ages. If the bright candy note dulls, that is your cue to swap the coil or pod. Let a freshly filled pod soak for a few minutes before vaping so the flavour comes through full and sweet from the first puff, and take steady draws to get the whole spread of fruit notes rather than just the sugar.
Store the bottle somewhere cool and dark, upright, away from sunlight and heat, which is good practice for any e-liquid but especially worth it here since you want the flavour staying vivid. A quick shake before filling keeps everything mixed. Because it is a candy flavour, it is worth being aware that Rainbow's sweeteners will gunk up coils faster than a plain flavour would, so factor in slightly more frequent coil changes if it becomes your main juice.
On value, this is where Rainbow really shines. Bar Juice 5000 nic salts are famously budget-friendly, and buying liquid to refill your own device is dramatically cheaper per puff than working through disposables. Even accounting for a few extra coil changes from the sweetness, the running cost stays low, which makes Rainbow one of the most cost-effective ways to keep a sweet tooth satisfied all day.
Who should probably skip it
Rainbow is not a universal flavour. If you dislike sweet or artificial-tasting vapes and prefer natural, fresh or tart fruit, this candy profile will likely be too sugary for you. Anyone who wants a cooling or menthol element will find none here. And if you are actively trying to move away from sweet and dessert flavours, perhaps because they fatigue your palate or you simply want something cleaner, a citrus or a mint blend will serve you far better than this sweet-shop throwback.
Rainbow FAQ
Does Rainbow taste like the rainbow fruit sweets I am thinking of?
Yes, that is exactly the flavour it recreates. You get the mixed fruit candy character of those chewy rainbow-coloured sweets, sweet and fruity with a mild tang from the greener notes in the middle.
Is Rainbow too sweet to vape all day?
It depends on your palate. Sweet-tooth vapers happily make it their all-day flavour, but because it is genuinely sugary, many people find it best rotated with a menthol or citrus to keep their taste buds fresh and stop the sweetness dulling.
Does Rainbow have any menthol or ice in it?
No, it is a warm, sweet candy flavour with no cooling whatsoever. If you want a chilled fruity vape, you would need to choose an iced flavour rather than this one.
Rainbow is a nicotine-containing e-liquid strictly for adults aged 18 and over. UK law caps nic salt strength at 20mg/ml, the level most ex-smokers find gives a satisfying hit while staying smooth on the throat.
