Sour Blue Raspberry Nexus 100ml Shortfill

Overview

The Sour Blue Raspberry Nexus 100ml Shortfill by Nexus in Sour Blue Raspberry at 0mg. Free UK delivery over £20, same-day dispatch on weekday orders before 4pm.

Nexus 100ml Sour Blue Raspberry at a glance

Nexus 100ml Shortfill Sour Blue Raspberry is a fruit-and-candy e-liquid supplied in a large 100ml bottle that is only part-filled with nicotine-free liquid. The empty headroom is there on purpose. It lets you add one or more nicotine shots at home and finish with a full bottle at a strength you choose yourself, or you can leave it alone and vape it at 0mg exactly as it arrives. If you have used shortfills before the format will feel familiar, and if you have not, this guide covers everything worth knowing before you order.

The flavour is built around blue raspberry, the bright, slightly tart, sweet-shop style berry note that has become one of the most common profiles in UK vape shops. The sour element sharpens that sweetness, so the finish lands closer to a fizzy sweet than to a smooth, creamy dessert juice. It is aimed at vapers who like something lively and tangy through the day rather than a heavy flavour that sits on the palate and tires it out.

Here is a quick summary of what you are buying.

• Brand: Nexus
• Format: 100ml shortfill bottle, supplied at 0mg nicotine
• Flavour: Sour Blue Raspberry, a sweet blue raspberry with a tart, sour finish
• Fill: a part-filled 100ml bottle with room for nicotine shots; the exact liquid volume is printed on your label and is commonly in the 70ml to 80ml range for bottles of this type
• Base: shortfills like this are usually high VG, often around 70VG/30PG, which suits sub-ohm tanks and mesh coils; the label is the final word on the ratio
• Suited to: refillable sub-ohm tanks, higher-wattage kits and larger refillable pod systems that cope with thicker liquid
• Nicotine options: 0mg as supplied, or add 10ml nic shots to reach roughly 2mg to 5mg per ml depending on how many you add
• Age restriction: sold to adults aged 18 and over only

The rest of this page explains how the product works under UK rules, what the flavour is like, how to mix a sensible nicotine strength, which devices and coils suit a liquid like this, how long a bottle realistically lasts, and how it compares with the alternatives. It is written as a practical guide rather than a sales pitch, so you will also find the situations where this bottle is probably the wrong choice for you.

One note before we go further. Because this is bottled liquid and not a disposable, there is no battery, coil or puff counter in the box. Those things belong to whichever device you pair the liquid with, and we cover what to look for in the sections on coils and power.

The flavour profile: sweet berry with a sour kick

Blue raspberry is not really a fruit you will find in a garden. It is a flavour that grew out of sweets, slush drinks and ice pops, and it tends to taste like a sugary raspberry with a slightly floral, almost candy-like brightness. Adding a sour note changes the balance. Instead of the sweetness sitting on top, it gets pulled back by a sharp, citric-style tang that makes your mouth water, much like the sour coating on a gummy sweet.

We describe the character below based on how this style of blend generally behaves in a tank, so your own impression can differ a little depending on your device, your wattage and how you vape.

• On the inhale: the blue raspberry usually arrives first, sweet and slightly jammy, and you notice it on the tip of the tongue.
• Mid-vape: the sour note builds, cutting through the sugar and keeping the flavour from tasting heavy or syrupy.
• On the exhale: the finish is tart and clean, with a lingering berry sweetness rather than a thick, sticky aftertaste.

This is a fruit flavour, not an ice or menthol flavour. There is no cooling effect advertised in the name, so do not expect the frosty exhale you would get from a variant with ice in the title. If you like a chilled finish, look at the other Nexus 100ml flavours in the e-liquid range and pick one that mentions ice or mint.

A few practical things change how the flavour comes across.

• Nicotine: adding shots increases throat hit and can slightly mute the sweetness, which can make the sour edge feel sharper.
• Wattage: lower wattage tends to emphasise the tart, fresh side, while higher wattage warms the vapour and pushes the sweeter, candy-like notes forward.
• Coil age: a fresh coil gives the cleanest taste. Sweet fruit liquids leave residue on the coil over time, and a tired coil flattens the sour note first.
• Airflow: a tighter airflow concentrates flavour, while an open draw gives a cooler, airier and slightly less intense hit.

If you have never tried a sour vape flavour, it is worth knowing that the tartness is a taste sensation on the tongue and not a harsh burn in the throat. A properly mixed bottle at a sensible strength should feel lively but comfortable. If it feels sharp or catches the back of your throat, the cause is far more likely to be nicotine strength or wattage than the flavour itself.

How a 100ml shortfill works under UK rules

A shortfill is simply a larger bottle of nicotine-free e-liquid that is not filled to the top. In the UK, e-liquid containing nicotine can only be sold in bottles of up to 10ml, and the nicotine strength is capped at 20mg/ml under the Tobacco and Related Products Regulations 2016. Those limits are the reason big bottles of vape juice are sold at 0mg. Without nicotine the bottle size restriction does not apply, so retailers can sell 50ml, 100ml and larger formats. The nicotine is then sold separately in small 10ml bottles called nic shots.

The short fill leaves a gap at the top of the bottle. If you want nicotine, you tip a shot into that gap, refit the cap and shake. The result is a full 100ml bottle at a lower, more comfortable strength than the shot on its own. Shots are usually 18mg/ml, sometimes 20mg/ml, and diluting them into a much larger volume brings the final strength down to a few milligrams.

It helps to understand how this differs from the other things people buy.

• Versus a 10ml nicotine e-liquid: a 10ml bottle arrives already mixed at a fixed strength, up to the 20mg cap. It is convenient but costs more per millilitre.
• Versus a disposable vape: disposables are sealed devices with a built-in battery. The 20mg/ml nicotine cap and a 2ml tank limit applied to them, and the sale of single-use disposables in Great Britain has been banned since June 2025. A shortfill is a refill for a reusable device, which is the route most adult vapers now take.
• Versus a prefilled pod: pods are a closed refill for one specific system, while a shortfill works with any compatible refillable tank.

Every legal 100ml shortfill sold in the UK carries the required health warning and child-resistant packaging, and these products are sold to over-18s only. You may be asked to confirm your age at checkout and again at delivery. Keep bottles and nicotine shots away from children and pets at all times, because nicotine is toxic if swallowed.

Nicotine is addictive. If you do not currently smoke or vape, there is no health reason to start, and the 0mg option is the sensible choice if you simply enjoy the flavour. If you are a smoker trying to switch, the NHS stop smoking services can provide free support that improves your chances of success.

Choosing and mixing your nicotine strength

Because the bottle arrives at 0mg, you decide the nicotine strength yourself, and the arithmetic is easy once you see it. Divide the total milligrams of nicotine you add by the total volume of liquid in the bottle afterwards. The numbers below assume standard 10ml, 18mg/ml shots, which contain 180mg of nicotine each.

• 80ml of liquid plus one shot: 180mg in 90ml, which is about 2mg/ml.
• 80ml of liquid plus two shots: 360mg in 100ml, which is about 3.6mg/ml.
• 70ml of liquid plus one shot: 180mg in 80ml, which is about 2.25mg/ml.
• 70ml of liquid plus two shots: 360mg in 90ml, which is 4mg/ml.
• 70ml of liquid plus three shots: 540mg in 100ml, which is about 5.4mg/ml.

Check the label on your own bottle for the exact liquid volume before you work out your mix, and never add more shots than the bottle has room for. Most people end up between 0mg and about 6mg on a sub-ohm style tank.

As a rough guide to where to start:

• 0mg: for people who no longer want or need nicotine, or who simply like the flavour.
• About 2mg to 3mg: a common range for light to moderate vapers on a high-wattage sub-ohm tank, where each puff delivers a lot of vapour.
• About 3.5mg to 6mg: often chosen by former heavier smokers who find lower strengths leave them reaching for the device constantly.

Higher power means each puff carries more liquid and so more nicotine. If you move from a low-wattage pod kit to a 70W sub-ohm tank, you will usually be happy at a lower strength than you expect. Starting too high is the most common mistake and tends to cause a harsh throat hit, light-headedness and a heavy feeling in the chest.

A few safety habits are worth following. Wash your hands after handling shots, wipe up any spills straight away, and never put a nicotine shot into a bottle that has no room for it. Label the bottle with the strength and the date once you have mixed it so that nobody mistakes it for a 0mg bottle later. If you are pregnant, have a heart condition or take regular medication, speak to a pharmacist or GP about nicotine before you vape. Nicotine salt shots also exist and are designed for lower-wattage devices, so do not mix them into a high-VG bottle intended for sub-ohm use without checking the manufacturer's advice.

How to fill, mix and use your bottle

Setting up a shortfill takes a couple of minutes and a clean surface. Following the steps in order reduces spills and gives a more even result.

• Step 1: shake the bottle gently to loosen the liquid, then take the cap off. The caps are child-resistant, so press down and turn.
• Step 2: open the nic shot or shots you want to add, and squeeze them into the empty space in the 100ml bottle. Use only as many as the headroom allows.
• Step 3: refit the cap firmly and shake the bottle for 20 to 30 seconds so the nicotine mixes through the whole bottle.
• Step 4: if you can wait, leave it somewhere cool and dark for a day. The flavour can settle slightly and the mix tends to taste more even, though it is optional.
• Step 5: shake again before you fill the tank, and give it a quick shake every few days as the liquid is used.

To fill the tank, remove the top cap or slide the top section aside, keep the bottle upright, and run the thin nozzle along the inside wall of the tank so that the liquid runs down without flooding the central airflow tube. Stop below the maximum line, because tanks need a little air space to avoid gurgling and leaks. Then follow these habits.

• Prime the coil: wait five to ten minutes after filling so the cotton wick can soak up the liquid, particularly with thicker high-VG liquids.
• Take gentle first puffs: without a primed coil you risk dry hits, which burn the cotton and ruin the flavour for the life of that coil.
• Start at the lower end of your coil's wattage range: every coil prints a recommended range, and for sweet fruit liquids the lower half is usually the more pleasant place to begin.
• Keep the tank at least a quarter full: running it nearly empty is the quickest way to burn the wick.

Draw slowly and evenly, in a longer, steady pull rather than a quick sip. With a sub-ohm tank, a lung inhale (breathing the vapour directly into your lungs) is the usual technique, while a mouth-to-lung style is better suited to pod kits that run tighter airflow. Whichever you use, take your time and do not chain-vape, because a coil needs a few seconds between puffs to re-wet. When you finish a session, keep the device upright and the airflow closed if it has a slider, which cuts down on seepage.

Devices and coil technology that suit this liquid

A liquid at roughly 70VG/30PG is thick, and thick liquid needs a coil designed to wick it quickly. That is why shortfills of this type are normally paired with sub-ohm tanks, the style of device that uses low-resistance coils below 1.0 ohm. Matching the liquid to the coil is the single biggest factor in how good this bottle tastes, so it is worth getting right.

• Mesh coils, 0.15 to 0.4 ohm: the usual choice for sub-ohm tanks running at about 40W to 80W. They produce large clouds, and a warm, full-flavoured vape.
• Mesh coils, 0.6 to 0.8 ohm: a middle ground at roughly 20W to 35W. These suit people who want strong flavour with lower liquid use and a tighter draw.
• Standard round-wire coils: older designs with a spiral of wire. They work, but wick thick liquid more slowly and are generally less forgiving of high-VG bottles.
• Refillable pod kits: a larger pod system with a 0.6 to 1.0 ohm mesh coil can handle a 70VG liquid, but check that the coil has wide wicking ports. If the manufacturer recommends 50VG or lower, a high-VG bottle may cause leaks or weak flavour.

Mesh coil technology deserves a quick explanation. Instead of a single wire wrapped around cotton, a mesh coil is a flat sheet of fine metal gauze that sits against the wick. The larger heating surface warms the liquid more evenly, ramps up faster after you press the fire button and tends to produce a smoother, more consistent flavour from first puff to last. The trade-off is that sweet liquids leave residue on the surface, so mesh coils benefit from regular replacement.

As a practical guide, expect a coil to last roughly one to two weeks with a sweet fruit liquid at moderate use, though power, nicotine strength and how often you chain-vape all shorten that. Signs that a coil is ending its life include a muted or slightly burnt flavour, a gurgling sound, reduced vapour or a harsh throat hit that was not there before. Replace it as soon as you notice, because pushing on does not recover the taste.

If you are not sure whether your current kit can use this liquid, look at the manual or the coil packaging. The recommended wattage range and VG/PG guidance are almost always printed there, and following them removes most of the guesswork.

Battery and charging for the device you pair it with

The bottle holds liquid only, so it contains no battery and there is nothing in it to charge. Battery life, charging speed and run time depend entirely on the device. Because a sub-ohm style kit draws far more power than a small pod, knowing what to expect from the battery helps you choose a kit that matches this liquid.

• Compact pod kits, about 800mAh to 1500mAh: small and pocketable. They suit lower-wattage vaping and may need a top-up charge within a day on moderate use.
• Mid-size sub-ohm kits with an internal battery, about 2000mAh to 3000mAh: a sensible balance for most daily vapers, typically lasting around a day at 30W to 50W.
• Box mods running removable 18650 or 21700 cells, roughly 3000mAh to 5000mAh per cell: the choice for higher wattage and longer sessions, and you can carry a spare charged cell.

These figures are guides and not guarantees, because actual run time rises and falls with the wattage you choose and how often you puff. Doubling your wattage roughly halves how long a battery lasts for the same number of puffs.

Safe charging practice matters whichever kit you have.

• Use the cable supplied with the device, or a reputable USB-C cable, and a standard wall adapter rated for the device.
• Do not leave batteries charging unattended or overnight on a soft surface such as a bed or sofa.
• Stop using any battery that is swollen, hot, damaged or has a torn wrap, and take it for disposal.
• Never carry loose cells in a pocket with keys, coins or a lighter. Use a plastic case.
• Charge removable cells in an external charger rather than inside the device where possible, so you can see their condition.

Most devices with USB-C charge fully in about one to two hours, though larger removable cells can take longer. When a battery or device reaches the end of its life, do not put it in the household bin or the general recycling. Lithium batteries can start fires in bin lorries and recycling plants. Take them to a battery recycling bin at a supermarket or at your council's household waste recycling centre, and many vape retailers will also accept used vape hardware for recycling. Empty bottles should be handled separately, which we cover in the section on bottle design and storage.

Performance: vapour, throat hit and how long a bottle lasts

Because the e-liquid is high VG, the main performance characteristic is dense, smooth vapour. VG (vegetable glycerine) produces the cloud, while PG (propylene glycol) carries flavour and gives the throat hit. A 70/30 blend leans towards vapour production and a soft feel, so a sub-ohm kit loaded with this liquid tends to produce visible, rounded clouds with a gentler throat hit than a 50/50 mix. Adding nicotine shots raises the throat hit again, and the more shots you add, the more noticeable it becomes.

For flavour delivery, this type of liquid is usually at its best at moderate settings. Pushing the wattage to the very top of a coil's range increases heat and vapour but dulls the delicate sour notes and can make the liquid taste flatter. If you find the tartness faint, try dropping the power by 5W to 10W before you assume the liquid is at fault.

How long does a bottle last? The honest answer depends on how much you vape, so here is a way to estimate it. Many sub-ohm vapers use somewhere between 3ml and 6ml per day. With a bottle holding roughly 70ml to 80ml of liquid, that works out at about two to four weeks per bottle, and lighter users at 1ml to 2ml per day will stretch it across a month or more. Higher wattage uses more liquid per puff, so if you step up the power, expect the bottle to empty faster.

People often ask about puff counts because disposable vapes advertise them. A reusable tank does not have a fixed figure, but as an estimate, a millilitre of liquid gives somewhere in the region of 100 to 200 puffs depending on wattage, puff length and coil. On that basis a part-filled 100ml bottle comes to many thousands of puffs. Treat that as a rough guide only, because the claimed puff counts on any vape product are marketing numbers measured under lab conditions that nobody vapes in.

Two things influence consistency across the life of the bottle. First, shake it occasionally, especially after adding shots, since nicotine and flavour can settle. Second, keep it capped and out of direct sunlight, because heat and light are the main reasons liquid darkens and loses flavour over time. A slight darkening in colour is normal in some fruit liquids and is not necessarily a sign that they have spoiled.

Bottle design, build quality, storage and recycling

The liquid arrives in a 100ml plastic bottle with a narrow nozzle for filling tanks, a design widely used across the UK shortfill market because the plastic is soft enough to squeeze and the fine tip fits into most refill ports. The cap is child-resistant and there is a tamper-evident ring that you break on first opening. Look at the printed label on your bottle for the batch details, the liquid volume, the ingredients and the health warning, because those are the details that count if you ever need to ask a question about the product.

On build quality, there are a few things worth checking when your parcel arrives.

• Seal intact: the tamper ring should be unbroken and the cap should turn with the usual push-and-twist action.
• Clean nozzle: the tip should be clear of residue, and a small amount of liquid around the neck is common but heavy leakage is not.
• Legible label: the text, the batch code and the warning should all be readable.

If any of these is missing or the bottle has leaked in transit, contact customer services as soon as you can with your order number and a photo.

Good storage extends the useful life of the liquid. Keep the bottle upright, tightly closed, in a cool, dark place such as a drawer or cupboard, and well out of the reach of children and pets. Avoid leaving it in a car, on a windowsill or next to a radiator. An unopened shortfill commonly stays in good condition for a year or two, but once you have added shots it is sensible to use the bottle within a few months, since the nicotine can slowly darken the liquid and slightly change its taste.

When the bottle is empty, treat it with a little care. Nicotine residue can remain inside, so let any last drops drain, refit the cap, and then check with your local council about whether it accepts rinsed plastic bottles in kerbside recycling, because rules differ between areas. Empty nicotine shot bottles go the same way. Used coils are small pieces of metal, cotton and plastic, and they should go in the general waste or the electrical recycling stream your council recommends. Batteries and any electronic hardware should be taken to a drop-off point such as a supermarket battery bin, a household waste recycling centre or a vape shop that accepts returns, never placed in the household bin.

Who this bottle suits, and who should look elsewhere

No single product suits every vaper. Being honest about that saves you money, so here is how to decide whether Nexus Sour Blue Raspberry is a good match.

It is likely to suit you if you:

• already own, or plan to buy, a refillable sub-ohm tank or a larger refillable pod system.
• enjoy sweet and tangy fruit flavours and want something with a bit of bite rather than a pure dessert or tobacco taste.
• vape regularly enough that a 100ml bottle will be used within a reasonable time.
• prefer to control your nicotine strength, or want to vape at 0mg.
• want a lower cost per millilitre than buying a succession of 10ml bottles.
• are an adult smoker looking for a reusable alternative to cigarettes and you are happy to learn the basics of mixing and coil changes.

You should probably look elsewhere if you:

• are under 18, or have never smoked or vaped. Vaping is for adults who want an alternative to smoking, not for non-smokers.
• want a one-piece device with no mixing and no refilling. A refillable kit with prefilled pods may be simpler.
• use a very small, low-wattage mouth-to-lung pod that is designed for nicotine salt liquid. Thick high-VG liquid can leak or fail to wick in those devices, and a 10ml nic salt bottle is usually the better fit.
• dislike sour or tart flavours. The tang is the whole point here, so a smoother fruit or dessert flavour would be more enjoyable.
• need a high-strength liquid to manage heavy cravings. Shortfills reach moderate strengths, and a stronger nic salt in a suitable device may do the job better.

If you are a first-time buyer coming from a disposable or a closed pod, remember that moving to a refillable setup takes a couple of weeks of adjustment. You need to learn how to fill a tank, choose a strength and swap coils, and you will probably get a better result by starting at a lower wattage and nicotine level than you first think. The reward is lower running costs and a wider choice of flavours, and it is a route that generates much less waste than single-use products.

Troubleshooting flavour, leaks and dry hits

Most problems with a shortfill are down to the setup rather than the liquid itself. Work through the likely cause for each symptom before deciding anything is faulty.

• Dry or burnt taste: usually an unprimed or worn-out coil, or a tank that has been allowed to run low. Refill, wait several minutes, take some gentle puffs with the power turned down, and replace the coil if the burnt taste does not clear.
• Gurgling or spitting: too much liquid in the tank, condensation in the chimney or a loose coil. Shake out excess liquid, wipe the chimney with a tissue, and check that the coil is screwed in properly.
• Leaking from the airflow: overfilling, or pressure changes on a flight or in a car. Fill only to just below the maximum line, close the airflow when carrying the device, and store it upright.
• Weak flavour from a new bottle: often vaper's tongue (temporary flavour fatigue), or a coil that has not wicked fully. Take a break of a day or so, try a different flavour for a while, and check the coil.
• Harsh throat hit: too much nicotine for the power you are running, or too much wattage for the coil. Reduce the power, or mix a lower strength for your next bottle.
• Flooded coil with a spluttering sound: a coil with insufficient wicking ports for the thickness of the liquid, or a new coil that has not been seated correctly. Reseat it, check the manufacturer's VG range, and switch coil style if necessary.
• Sticky bottle or nozzle: normal with sweet liquid. Wipe it with a damp cloth and keep the cap and neck clean.
• Sourness too strong or too faint: adjust the wattage by a few watts, try a different nicotine level, or swap in a new coil before you judge the liquid.

Another frequent issue is sediment or visible cloudiness after you add shots. A slight swirl is normal immediately after mixing and settles within hours. If you see lumps, a bad smell or an unusual colour change, stop using the bottle and contact customer services.

Finally, keep a short routine. Clean the tank every time you change coils or flavour, with warm water and a dry cloth. Let it dry fully before refilling. This single habit solves a surprising share of flavour complaints and extends the life of the tank itself.

Value for money and how it compares with the alternatives

The main financial argument for a 100ml shortfill is cost per millilitre. A large bottle costs more at the till than a 10ml one, but you pay a lot less for each millilitre of liquid. To compare fairly, add the price of your nicotine shots, divide the total by the final volume of liquid and compare that with the per-millilitre price of a 10ml nic salt bottle. For a regular vaper the saving is usually clear, and it grows the more you use.

Here is a straightforward comparison with the other ways people vape in the UK.

• Versus 10ml nicotine e-liquid: cheaper per millilitre when bought as a shortfill, but you need a suitable device and a few minutes to mix. A 10ml bottle is the better option for small pod systems and for trying a flavour.
• Versus prefilled pods: pods are convenient and tidy, but they cost more over time and limit you to the flavours the pod maker offers.
• Versus other 100ml shortfill ranges: brands such as IVG, Riot Squad and Doozy Vape Co also sell blue raspberry style bottles. The real differences usually come down to how sweet the juice is, how strong the sour note is, the VG/PG split and the liquid volume. Read the label rather than assuming they match.
• Versus disposables: sales of single-use disposables have been banned in Great Britain since June 2025, so the comparison now is with rechargeable and refillable kits. Refillable kits cost more up front but far less to run.

In fairness, the Nexus range is positioned as a simple, flavour-led shortfill and not a premium craft liquid. If you want a very complex, layered recipe, a specialist boutique brand may offer more nuance, though at a higher price. If you want a lively, sweet and sour berry flavour in a large bottle at a sensible cost, this is a reasonable fit.

Remember the hidden costs of a refillable setup too. You will need coils every one to two weeks, nic shots if you want nicotine and an occasional replacement tank. Even with those added, the running cost per day is normally well below that of smoking, and it avoids the waste of a throwaway device when you recycle the batteries and packaging properly.