Mr Blue is one of those eliquids that nearly every vape shop stocks, yet each version tastes a little different. Typically, this flavour blends blueberry, blackberry and raspberry with a hint of ice for a cooling finish. How cold it feels, how sweet it tastes and how balanced the berries are depend entirely on the brand. In our eliquid review we follow the same comparison structure used in our Lemon Lime nic salt showdown – 5 brands compared , where we found that ice levels, sweetness and balance vary massively across brands.
All ratings below are based on direct comparison and real customer behaviour on eJuicy. Popularity isn’t hype; it reflects what actually sells and gets reordered.
What Does Mr Blue Vape Taste Like?
Mr Blue usually tastes like a sweet mixture of blueberry, blackberry and raspberry, finished with a cool icy note. However, the exact flavour changes between brands. Some versions are sweeter, some have stronger ice, while others focus more on darker berry flavours. This is why two Mr Blue nic salts can taste noticeably different despite sharing the same name.
The Mr Blue line-up
We compared three popular eliquids. Each one was tested in the same refillable pod kit to ensure fairness.
*Overall ratings are a rounded average of ice content, sweetness, and customer popularity.
Elux Legend – Mr Blue
eJuicy rating
Ice content: 3/5
Sweetness: 3/5
Popularity: 5/5
Profile: Mixed dark berries with a medium cooling finish
Coil impact: Moderate – doesn’t gunk coils quickly
Flavour profile
Elux Legend keeps everything in check. The berry mix tastes natural, with blueberry and blackberry coming through clearly, and the ice level sits right in the middle. It’s chilled enough to feel refreshing but not so cold that it overwhelms the fruit. Sweetness is moderate, making this a flavour you can vape all day without it becoming cloying.
Ice and sweetness
With both ice and sweetness rated 3/5, Elux strikes a true middle ground. It delivers a pleasant coolness and enough sweetness to round off the berries. If you liked how balanced the Elux Lemon & Lime was, this will feel familiar.
Popularity
A popularity score of 5/5 means this is currently the best‑selling Mr Blue eliquid at our vape shop. Customer feedback praises its reliability and how well it performs in everyday pod kits. The moderate ice and sweetness also help extend coil life.
How to choose the right nicotine strenght?
If you’re unsure which nicotine strength would suit this eliquid, see our How to choose the right nicotine strength for your e‑liquid guide. It explains the difference between strengths and helps you avoid choosing too high or too low a dose.
Bar Juice 5000 – Mr Blue
eJuicy rating
Ice content: 2/5
Sweetness: 3/5
Popularity: 4/5
Profile: Smooth berry blend with gentle cooling
Coil impact: Slightly sweet – average coil lifespan
Flavour profile
Bar Juice softens the recipe. The berry flavours lean towards blue raspberry and blackcurrant with a smoother, warmer feel. The ice is lighter than Elux, creating a milder inhale. Sweetness is similar to Elux but without the crisp edge. Overall, it is easy to vape and well suited to newcomers who dislike strong menthol or sour notes.
Ice and sweetness
At 2/5, the cooling is present but subtle. Sweetness sits at 3/5, giving a rounded mouthfeel. Because there is less ice, the flavour feels slightly sweeter and richer, which some vapers may find more satisfying.
Popularity
This eliquid scores 4/5 on popularity. It is a solid seller thanks to its approachable profile and competitive price. Coil life is average; the moderate sweetness can shorten wick longevity compared with cleaner juices, but not dramatically.
Do you know your PG VG Ratio?
Curious about how propylene glycol (PG) and vegetable glycerine (VG) affect flavour and coil life? Have a look at our PG VG ratio guide for UK vapers. It breaks down common ratios and what they mean for flavour, throat hit and coil longevity.
Crystal Clear Bar Salt – Mr Blue
eJuicy rating
Ice content: 2/5
Sweetness: 3/5
Popularity: 2/5
Profile: Crisp berries with minimal sweetness
Coil impact: Very good – low residue for longer coil life
Flavour profile
Crystal Clear takes a cleaner approach. The berry blend feels sharper and drier, with blueberry and blackberry flavours coming through clearly. The ice is light, similar to Bar Juice, but there is less sweetness overall. This gives a crisp finish that won’t overwhelm you or your coils.
Ice and sweetness
Despite sharing the same scores as Bar Juice, the way Crystal Clear uses ice and sweetness is different. The sweetness feels lighter because the flavour concentrates are cleaner, and the cooling is subtle. If you prefer a drier vape or want to extend coil life, this may appeal.
Popularity
With a popularity rating of 2/5, Crystal Clear Mr Blue is less commonly reordered. Many vapers prefer a sweeter or colder profile. However, its low sweetener content means it is kind to coils and works well for those who value longevity over intensity.
Nicotine salts vs Freebase
For a deeper dive into the differences between nic salts and freebase e‑liquids, read our Nicotine salts vs freebase – comprehensive review of the differences. It explains how nicotine salts are formulated and why they feel smoother compared to traditional freebase e‑liquids.
Comparison Summary
If you just want the highlights, here they are.
Summary results
Most balanced: Elux Legend – middle‑ground ice and sweetness
Softest cooling: Bar Juice 5000 – gentle ice hit
Cleanest flavour & best coil life: Crystal Clear – low sweetness and minimal residue
Most popular overall: Elux Legend
Final Verdict
Just as we found in our Lemon & Lime comparison, there is no single “best” Mr Blue eliquid. Your choice should depend on what you value:
Balance and reliability: Elux Legend – ideal if you want a steady, all‑day vape
Soft and easy vaping: Bar Juice 5000 – perfect for those who dislike strong menthol or heavy sweetness
Clean and low sweetness: Crystal Clear Bar Salt – great if you prioritise coil life and a crisp finish
Extra tip
Battery type can affect how these eliquids perform. For guidance on choosing the right battery or device for your nic salts, see our Vape battery guide – types, sizes and compatible vape mods.
Reviewed Flavours – Side by Side Comparisons
In these reviews, I test the same flavour profile across different brands using the same type of kit and setup. I focus on ice level, sweetness, balance and how the eliquid actually performs over time, not just the first few puffs. Everything is compared side by side so you can see the real differences before choosing your next bottle from our vape shop. Here is a full list of what has been reviewed so far:
Mr Blue Nic Salt FAQ
What does “ice content” mean in Mr Blue nic salts?
Ice content refers to cooling agents added to the e‑liquid. It is not menthol. Higher ice levels create a frosty sensation on the inhale and exhale. Low‑ice liquids feel smoother and warmer.
Does sweetness affect coil life?
Yes. Sweeter nic salts tend to caramelise faster on the coil, darkening the cotton and reducing lifespan. Low‑sweetness blends like Crystal Clear generally give better coil longevity.
Is Mr Blue a good all‑day vape?
For many people, yes. Light berry flavours with moderate sweetness and ice are less likely to cause flavour fatigue compared with heavier dessert blends.
Is ice in eliquids the same as menthol?
Not exactly. In eliquids, “ice” usually refers to a cooling agent such as WS-23 rather than traditional menthol. Menthol has its own minty flavour. Ice gives you that cold sensation without adding a mint taste. So when you see Mr Blue with ice, it means cooling berries, not mint berries.
Is Mr Blue always a mixed berry flavour?
Yes, but the balance changes by brand. Most Mr Blue eliquids combine blueberry, blackberry and raspberry with a cooling finish. Some versions are sweeter, some sharper, and some heavier on the ice.
Which vape device works best for Mr Blue nic salt?
Mr Blue nic salts are designed for refillable pod kits and MTL devices. If you are unsure, read our guide on How to Choose the Right Nicotine Strength for Your E-Liquid and our Vape Battery Guide to match your setup correctly.
Is Elux Mr Blue very icy?
No. In this eliquid review, Elux scored 3/5 for ice. It has noticeable cooling, but it does not overpower the berries. It feels fresh rather than freezing.
Does Elux Mr Blue burn coils quickly?
Compared to very sweet dessert eliquids, coil wear is moderate. It is fairly coil-friendly for a fruity nic salt.
Does Bar Juice Mr Blue taste more like blue raspberry?
Yes, slightly. In this eliquid review, it leans more toward blue raspberry and blackcurrant notes compared to the darker berry balance of Elux.
Is Crystal Clear Mr Blue better for coil life?
Generally yes. Because it feels less sugary and more refined, coils often last slightly longer compared to sweeter berry eliquids.
