Flavour holds up to the last puff
Really pleased with the order overall. Everything arrived as expected, well packed, fast dispatch.
OhmThe Mr Blue Ohm Brew Badass Blend 50ml by Ohm in Mr Blue at 0mg. Free UK delivery over £20, same-day dispatch on weekday orders before 4pm.
Ohm Brew Badass Blend 50ml Mr Blue is a 0mg shortfill e-liquid from Ohm, sold in a large 50ml format for UK vapers who want a refillable setup that costs less to run than pre-filled pods or the disposables that used to dominate the market. The flavour name, Mr Blue, places it in the blue-fruit family of profiles, the sweet, slightly tangy, cool-feeling flavours that have been a fixture of UK vape shop shelves for years. If you have used blue raspberry, blueberry or blue slush style liquids before, you already have a reasonable idea of the territory this bottle sits in.
A shortfill is simply a bottle that contains less e-liquid than its capacity and no nicotine. This one is normally supplied as 50ml of liquid in a 60ml bottle, which leaves a 10ml gap for a nicotine shot if you decide to add one. If you vape at 0mg, you can use it straight from the bottle and there is nothing else to buy. If you want some nicotine, you add a shot, shake the bottle and let it rest. We cover the maths and the method in the nicotine section below.
Why does the format exist at all? In the UK, nicotine-containing e-liquid is capped at 20mg/ml and bottles are limited to 10ml. Those limits are the reason a 50ml bottle has to be nicotine free. It is a sensible, lawful arrangement: the retailer sells a large bottle of flavoured base, and the customer chooses whether to add nicotine and in what strength. For people moving away from single-use devices, which can no longer be sold in Great Britain, a shortfill is one of the more economical ways to carry on vaping.
This page is written to help you decide whether Mr Blue suits you before you buy. We go through flavour, specifications, the sort of hardware that works well with a high-VG liquid, how to choose a nicotine strength, how to fill and prime a tank, what to do when something tastes wrong, and how this bottle compares with similar products from other UK brands. Where a detail can vary from batch to batch, such as the exact VG and PG split, we say so and point you to the printed label rather than guessing.
One thing to be clear about from the start: this is a liquid, not a device. It has no battery, no coil and no charging port. Anything we say about puffs, power and charging relates to the hardware you pair it with, and we have tried to keep those comments practical so that they help whichever kit you already own.
Mr Blue belongs to the blue-fruit group, and in UK vaping that label usually means a mix of berry sweetness and a faint sharpness, often with a cool, almost sherbet-like finish. Manufacturers rarely publish a full note-by-note breakdown, and we would rather not invent one. What we can do is describe the character that blue-themed profiles tend to share, and suggest how to judge whether it matches your taste.
On the inhale, expect a sweet, juicy fruit note that sits somewhere between blue raspberry and blueberry. It is the kind of flavour that reads as sugary rather than natural, closer to a boiled sweet or a fizzy drink than to fruit picked from a bush. Behind it, there is usually a slight tartness that stops the sweetness feeling flat, and some versions add a very light cooling effect. If your preference is for realistic, slightly bitter dark berries, this style will probably feel too sweet. If you like confectionery and soft drinks, it should feel familiar.
On the exhale, blue-fruit liquids generally leave a clean, lingering sweetness on the tongue. Because the base is high in vegetable glycerine, the vapour itself carries a mild natural sweetness, which can add to the effect. Some people find that after a few days of vaping a very sweet flavour they notice less of it, a normal effect called vaper's tongue or flavour fatigue. Rotating with a second, less sweet liquid now and then helps if that happens to you.
A few things influence how Mr Blue tastes in practice:
A fair expectation, then, is a sweet, tangy, easy-going blue fruit flavour with a fairly smooth finish, suitable as an all-day vape rather than something to dip into occasionally. If you want to be certain before committing to 50ml, consider that the Badass Blend range has several other fruit and candy profiles, and you can compare descriptions across the range on our site before you choose.
Below is a summary of the specifications that matter when you compare this bottle with others. E-liquid specifications can change slightly between batches, so treat these as a guide and check the label on your own bottle for the exact VG/PG ratio and ingredient list.
The packaging is functional. A 50ml shortfill comes in a squeezable plastic bottle with a thin, long nozzle, designed so you can reach into the filling port of a small tank without spilling. The cap is a child-resistant closure, and many shortfill bottles also carry a tamper-evident ring so you can see that it has not been opened before it reaches you. The soft walls let you control the flow, and the 60ml capacity is deliberate: it gives you enough empty space to drop in a nicotine shot and shake it without the liquid overflowing.
The label carries the information you would expect to find on any e-liquid sold in the UK, including product name, volume, ingredients, warnings, batch number and a best-before date. If you add a nicotine shot, the resulting strength will not appear on the printed label, so we recommend writing it on the bottle yourself with a permanent marker, along with the date you mixed it. This takes ten seconds and prevents confusion if you keep several bottles around.
It is worth being honest about the limits of the format. A 60ml bottle is bulky, and it is not something most people would carry in a pocket all day. Many vapers keep the large bottle at home and decant a few millilitres into a small dropper bottle for daily use. If you do that, label the small bottle clearly and keep it out of reach of children, because a decanted bottle without a proper label is easily mistaken for something harmless.
There is no battery capacity, no puff count and no coil to quote here, because those belong to devices. What we can say is how this liquid behaves in different kinds of hardware, and that is what the following sections cover.
With an e-liquid, performance comes down to three things: how much vapour it produces, how clearly the flavour comes through, and how consistent both stay from the first puff to the last drop in the tank. The main factor behind the first of these is the VG content. Vegetable glycerine creates dense, thick clouds and gives a rounder, softer throat feel than propylene glycol. A high-VG shortfill like this one will therefore tend to produce more visible vapour than a 50/50 liquid or a nic salt, and the vapour usually feels warmer and heavier in the mouth.
Throat hit is mild. At 0mg there is almost no scratch, and even with a 3mg shot added it stays gentle on a sub-ohm setup. That is a point in its favour for anyone who dislikes harsh or peppery liquids. If you want a firmer hit, the answer is a higher nicotine strength delivered through a different type of product, not a change of VG ratio.
Flavour delivery depends heavily on how your device is set up. In practical terms:
Because we cannot see your device, the safest advice is to start at the lower end of the wattage range printed on the coil and nudge it up in small steps until the flavour is full and nothing tastes scorched. That range is usually stamped on the side of the coil and is a more reliable guide than any general figure we could give.
On how long a bottle lasts, consumption varies a great deal. As an estimate, a moderate user on a sub-ohm tank might use around 3 to 5ml a day, which would make 50ml last roughly ten to seventeen days. Someone on a low-power pod kit may use 1 to 2ml a day and stretch the same bottle across a month. Those numbers are rough, and your own habits, coil resistance and wattage will move them either way.
Some habits keep performance steady regardless of brand. Prime every new coil before use. Keep the tank at least a third full so the wick does not run dry. Take shorter, slower puffs instead of chain vaping at full power. And if the flavour fades suddenly with a full tank, change the coil before blaming the liquid, because a tired coil is the cause far more often than a faulty bottle.
A bottle of liquid has no battery, but the battery in your device decides how long you can vape between charges and how well the liquid is vaporised, so it is worth understanding how the two fit together. This is also the most common question from people moving across from disposables, which had a fixed, small battery and a fixed output.
Refillable hardware comes in a few broad groups, and battery size differs between them:
A larger battery gives you more vaping between charges but does not change the flavour of the liquid. What does affect the liquid is the power delivered to the coil and whether the coil can keep up with a thick liquid. If you put a high-VG shortfill into a pod with tiny wicking holes, the cotton may not saturate quickly enough and you will get dry or burnt hits. Pods marketed for thin nic salt liquids are usually a poor match. Before filling, check whether your pod or coil is rated for higher VG liquid. Many manufacturers print a VG range on the coil packaging.
Charging advice applies to any rechargeable vape:
When choosing hardware to go with this bottle, think about how you vape most days. If you vape mainly at home or at a desk, a bigger-battery kit saves you charging more than once a day. If you are out and about and vape lightly, a slim pod may be enough, especially if you decant a little liquid into a small bottle to refill from. Either way, a refillable setup lets you swap coils and tanks over time without throwing away the whole device, which is where much of the long-term saving comes from.
The coil is where liquid turns into vapour, and its design has a larger effect on taste than many people expect. A high-VG shortfill is thicker than a 50/50 or nic salt liquid, so it needs a coil with a generous wicking surface and inlet holes wide enough to keep the cotton saturated. The main designs you will come across are:
For a sweet blue-fruit profile such as Mr Blue, a mesh coil run towards the lower-middle of its rated range is a sensible place to start. It lets the fruit come through clearly while the sweeter background builds underneath. If you prefer a cooler, subtler vape, a wire coil of about 0.8 to 1.0 ohm in a mouth-to-lung tank is a reasonable alternative, producing smaller clouds but a tighter draw.
Coil lifespan depends on how you vape. As a rough rule, a coil used with a sweet liquid commonly lasts between one and two weeks of regular use before the flavour starts to flatten. That is an estimate, not a promise, and it will be shorter if you run high power or chain vape. Sweeteners in the liquid can build up on the coil as a dark residue over time, which is a natural process and one reason sweet liquids eat through coils faster than lighter flavours.
Priming is the single most useful step whenever you fit a new coil. Drip a few drops of liquid straight onto the cotton through the coil's intake holes, fill the tank, and leave it for five to ten minutes before pressing the button. Skipping this step is the usual reason a fresh coil tastes burnt on the first puff.
If your device only accepts the manufacturer's own replacement coils, check that the coil you plan to buy lists a VG range that includes high-VG liquid. Choosing a coil that is matched to the liquid usually matters more than any other hardware decision.
The 50ml bottle is supplied at 0mg. If you want nicotine, you add it yourself using a nicotine shot, which is sold separately as a 10ml bottle. Shots exist because UK rules cap nicotine-containing e-liquid at 20mg/ml and 10ml per bottle, so the 50ml format has to be nicotine free. The arithmetic is straightforward.
The 60ml bottle only has room for a single 10ml shot. If you need much more than around 3mg, a shortfill is the wrong tool, and a nic salt bottle in a pod device is a more practical choice. This matters for people stepping down from a 20mg disposable. A shortfill mixed to 3mg will feel far milder, and on its own it may not be enough to settle cravings, so do not be surprised if the first few days feel different.
As a rough guide to choosing:
To mix safely, wash and dry your hands first, open the shot bottle and squeeze its contents into the 60ml bottle, close the cap firmly, and shake for around thirty seconds. Leave the bottle to rest for several hours, ideally overnight, before first use, because freshly mixed liquid can taste uneven. Write the new strength and date on the bottle. Do not pour shots anywhere children or pets can reach, and wipe up spills straight away because nicotine can be absorbed through skin.
If you are unsure how much nicotine you need, bear in mind that too much causes headaches, nausea and dizziness, while too little leaves you reaching for the device more often. It is easier to start lower than you think and adjust upwards. If you are vaping to quit smoking, local NHS stop smoking services offer free advice and support and are worth a call.
Nicotine is addictive. This product is for adults who already smoke or vape. It is not suitable for non-smokers, anyone under 18, or women who are pregnant or breastfeeding.
No single e-liquid suits everyone, so here is a plain view of who is likely to enjoy this bottle and who might be better served elsewhere.
Mr Blue is a good match for:
You might want to look elsewhere if:
It is also worth being clear about who should not use the product at all. E-liquid is intended for adults. If you are under 18, do not buy or use it. If you do not currently smoke or vape, there is no health benefit to starting, and nicotine is addictive. If you are pregnant or breastfeeding, or have a heart condition or other health concern, speak to a GP or pharmacist before using nicotine products. Vaping carries risks, and it is generally considered less harmful than smoking, not harmless.
If you are on the fence, a good approach is to buy one 50ml bottle, mix it to your chosen strength, and give it a full week before judging. Flavours often taste different when the bottle has settled and your tank and coil are properly primed. If the profile is not for you, the Badass Blend range includes a number of other flavours, so you can try a different direction without changing brand or format.
If this is your first shortfill, the routine is easy once you have done it once. Follow these steps in order and you should avoid the most common early problems.
A few practical points make the difference between a pleasant experience and a frustrating one. First, close the airflow ring a little when you first fill, because wide-open airflow with fresh liquid can cause gurgling or leaking. Second, hold the device upright when you are not using it, and avoid carrying it in a bag mouthpiece-down. Third, if you are using a tank with a top-fill design, check that the fill port is fully closed after filling, as an ajar cap is the usual cause of unexplained leaks.
For daily use, top up when the tank is a third full instead of waiting until the coil is dry. Letting a tank run empty makes the coil burn and shortens its life. If you have not vaped for a few days, take a couple of priming puffs without pressing the button for long, then resume as normal.
When you finish a bottle, you can reuse the empty plastic bottle for decanting a different flavour if you wish, but wash it thoroughly and dry it completely first. Never reuse a bottle without removing the old label information, since mixed labels create confusion about strength and flavour.
Finally, keep the original packaging details, including the batch code, until the bottle is finished. If you ever need to contact us about a problem, the batch number on the label helps us look into it quickly.
Most problems people have with shortfills are down to the hardware, the coil or the way the tank was filled, not to the liquid itself. Here are the issues we see most often and what to try before you assume something is wrong.
If you have tried these steps and the problem remains, work through a simple process of elimination. Change one thing at a time, such as the coil, the wattage or the tank, and take a few puffs between changes. If the same fault appears with a different liquid, the cause is the device, not this bottle.
For issues that clearly relate to the product, such as a leaking bottle on arrival, a damaged seal or a liquid that smells or tastes wrong straight from a fresh bottle, stop using it and contact us with your order number and a photograph. Please keep the bottle and packaging, as we may need the batch code. We would rather hear about a problem early than have you persevere with something that does not seem right.
Value in a shortfill is a mix of cost per millilitre, how long the bottle lasts and whether you enjoy the flavour all the way to the bottom of it. A 50ml shortfill generally costs far less than buying the same volume as five 10ml bottles, and the saving grows the more you vape. Prices change, and our listing is the reliable source for the current figure, so we do not quote a price here.
As a practical example, take a moderate user who gets through around 4ml a day. A 50ml bottle lasts about twelve days, which means roughly two and a half bottles a month. Add the occasional coil and a nicotine shot or two, and the monthly cost is usually well below what a daily habit of single-use vapes used to cost. Disposables are no longer sold in Great Britain, so for most people the real comparison today is between a refillable kit and a pod system that uses pre-filled pods.
How does Ohm Brew Badass Blend compare with other brands? Here is our honest view.
Where Mr Blue may not be the right buy is variety. If you like changing flavours daily, a 50ml bottle commits you to one for a couple of weeks. One workaround is to split a bottle across two clean dropper bottles and pair each with a different flavour in rotation. Another is to buy this alongside a less sweet profile, so that you can alternate when the sweetness feels like too much.
Overall, if you enjoy sweet blue-fruit flavours, own a tank or pod that suits high-VG liquid, and are happy at 0mg or around 3mg, this bottle gives you a large volume of liquid at a sensible running cost.
Buying and using e-liquid in the UK comes with a handful of rules and good practices that are worth knowing whether you are new to vaping or just new to shortfills.
Age and sales rules. You must be 18 or over to buy vaping products in the UK, and sellers, including online shops like ours, must carry out age checks. Nicotine e-liquid is capped at 20mg/ml and sold in bottles of no more than 10ml, which is the reason this 50ml bottle is supplied without nicotine and a separate shot is needed to add some. Single-use disposable vapes can no longer be sold in Great Britain, so refillable and rechargeable devices are now the usual route.
Storage. Keep the bottle in a cool, dark place away from direct sunlight and from heat sources such as radiators, windowsills and car dashboards. Heat and light darken liquid and can dull the flavour over time. Keep the cap tightly closed, store the bottle upright, and keep it well out of the reach of children and pets. Once you add a nicotine shot, treat the bottle as a nicotine product and store it accordingly.
Shelf life. Most e-liquids remain in good condition for a year or more when unopened and stored properly. Once opened, they are best used within a few months. Check the best-before date printed on the bottle and stop using anything that smells off or has separated.
Spills and accidents. Wipe up spills promptly and wash any skin that has come into contact with liquid. If a child or pet swallows e-liquid, or if you swallow nicotine yourself, seek medical help immediately and take the bottle with you. In an emergency, call 999.
Recycling. Empty e-liquid bottles are plastic and can usually be rinsed and placed in household plastic recycling, but local council rules differ, so check yours. Devices, batteries and cells must never go in household bins or kerbside recycling. Take them to a recycling drop-off point instead. Many UK supermarkets, electrical retailers and council recycling centres accept small electrical items and batteries, and a number of vape shops run take-back schemes. Damaged lithium cells should be handled carefully and kept apart from other metal objects on the way to the drop-off point.
If you are unsure about anything on the label, ask before you use the product. A quick question is always better than a guess, and we are happy to help with queries on nicotine strengths, mixing and compatible hardware.
| Brand | Ohm |
|---|---|
| Product type | E-Liquid |
| Nicotine strength | 0mg |
| Available flavours | 1 (Mr Blue) |
| Price | £0.99 |
| Availability | In stock — same-day dispatch |
| Compliance | UK TPD-compliant, MHRA-registered |
Ohm supplies e-liquids to the UK market through Vape Shop Online. We stock the current Ohm range in full with same-day dispatch on weekday orders before 4pm.
The bottle is supplied at 0mg, so the choice is whether to add a shot. Adding one 10ml 18mg nicotine shot gives about 3mg/ml, which suits light to moderate vapers on a sub-ohm tank. If you need stronger nicotine than that, a nic salt e-liquid in a low-power pod device is a better fit than a shortfill.
No, the bottle is just liquid and has no battery. Charging applies to the device you use it in. Use the cable supplied with your kit, avoid charging unattended or on soft surfaces, and stop using any device that becomes swollen, hot or damaged.
Yes. Mr Blue is one of several flavours in the Ohm Brew Badass Blend 50ml range, including fruit and candy profiles. You can browse the other variants on our site and pick whichever suits your taste. Rinse your tank before switching so the old flavour does not carry over.
It depends on your device and habits. A moderate user on a sub-ohm tank might use about 3 to 5ml a day, so roughly ten to seventeen days. A light user on a low-power pod could make the same bottle last a month or more. These are estimates and will vary with wattage and puff length.
Per millilitre, a 50ml shortfill usually costs noticeably less than buying the same volume as 10ml bottles or pre-filled pods. The trade-off is a little more effort, including filling, priming and changing coils. Check the current price on the product page, as prices can change.
It suits adult vapers who like sweet, tangy blue-fruit flavours and own a tank or pod that handles high-VG liquid. It is not for anyone under 18, non-smokers, or those who are pregnant or breastfeeding. It is also a poor fit if you need high nicotine strength or use a very small pod with narrow wicking ports.
Most shortfills are high VG, so they work well in sub-ohm tanks and refillable pods with wide wicking ports. Very small pods designed for thin nic salt liquid may struggle and give dry hits or leaks. Check your coil or pod packaging for a recommended VG range, and check the bottle label for this batch's exact VG/PG ratio.
Yes, we deliver across the UK. Delivery options, costs and timings are shown at checkout and on our delivery page, which is the place to check current times. Orders are age-checked, and someone aged 18 or over may need to be available to receive the parcel.
E-liquid does not carry a device-style warranty. If a bottle arrives damaged, leaking or not as described, contact us promptly with your order number and a photo and we will put it right in line with our returns policy and your statutory rights. For hygiene and safety reasons, opened bottles generally cannot be returned, so please read our returns page before ordering.
Store it upright with the cap tight, in a cool, dark place away from children and pets. Rinse an empty bottle and place it in plastic recycling if your council accepts it. Devices and batteries should never go in household bins and should be taken to a recycling drop-off point.
Royal Mail Tracked 24 (Next-Day): £1.99, FREE on orders over £20.
DPD Next Working Day: £3.99 (£2.99 over £20), FREE over £100.
Same-day dispatch on orders placed before 4pm Mon-Fri. See our delivery page for full details.
Really pleased with the order overall. Everything arrived as expected, well packed, fast dispatch.
Ordered Wednesday evening, arrived Thursday morning. Everything sealed, genuine, exactly what I expected.
Taste is proper — no chemical aftertaste or anything. Just clean flavour throughout. Love it.
Been looking for something like this for ages. Finally found a brand that doesn't disappoint.
Switched from a well-known brand and this is actually better, especially for the price. Will reorder.
Delivery was super fast and the product is genuine. I've had fakes before so this was a relief.
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Angel
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Al Fakher
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