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DoubleThe Watermelon Ice Double Brew Nic Salts 10ml 20mg by Double in Watermelon Ice at 20mg. Free UK delivery over £20, same-day dispatch on weekday orders before 4pm.
Double Brew Nic Salts Watermelon Ice is a 10ml bottle of nicotine salt e-liquid at 20mg/ml, built around one straightforward idea: ripe, juicy watermelon with a cold menthol finish. It is made for refillable pod kits and low-wattage tanks, which is the hardware most UK vapers moved to after single-use vapes were banned across Great Britain on 1 June 2025. If you want a fruit-and-ice flavour without buying a new device every few days, a bottle like this paired with a reusable kit is the usual route.
Here are the headline facts so you can decide quickly whether this is the right bottle for your setup.
A note on what this product is not. It is not a disposable and it is not a device. It is the liquid you put inside a refillable pod or tank, so the experience you get depends partly on the kit you pair it with. Most of this page is about helping you make that pairing work, because a good bottle in the wrong coil or at the wrong wattage will taste flat, harsh or burnt, and that is rarely the liquid's fault.
Nicotine salts differ from the freebase e-liquid used in older, higher-powered kits. They use an added acid, usually benzoic acid, to lower the pH of the nicotine so that a high strength feels noticeably smoother in the throat. That is why 20mg nic salts became the default choice for small pod devices, and why you should never put a salt-strength liquid into a high-wattage sub-ohm setup designed for 3mg or 6mg freebase juice.
Below you will find a plain-English breakdown of how Watermelon Ice tastes, how it behaves in different devices, how long a bottle tends to last, what to do when something goes wrong, and how it stacks up against similar watermelon ice nic salts you might also be considering.
Watermelon is one of the harder fruit flavours to get right in a vape liquid. Real watermelon is mostly water with a faint, sweet, slightly grassy note, so flavour houses tend to push it toward either a candy profile (think sweets and chewing gum) or a fresh-cut profile. Double Brew Watermelon Ice sits closer to the fresh, juicy side with a sweetness that stays moderate rather than syrupy, and a cooling layer added on top.
On the inhale, expect a light, cool wave first, with the watermelon building underneath it within a second or so. The fruit note is the star of the first half of the puff. Mid-draw, the sweetness rounds out and you get that familiar summer-fruit character that sits somewhere between fresh watermelon and a watermelon sweet. The exhale carries most of the menthol, leaving a clean, cold finish in the mouth and nose without a lingering bitter or medicinal aftertaste.
The cooling level matters because it changes how much of the fruit you can taste. Heavy menthol can flatten delicate fruit flavours, and a watermelon liquid with too much ice ends up tasting like cold air with a vague pink sweetness. At a medium level, the fruit stays readable. If you find ice flavours too aggressive, Watermelon Ice is a reasonable middle ground. If you want an arctic blast that numbs your tongue, this will probably feel mild to you.
Flavour perception also shifts with temperature. At lower wattage the vapour is cooler and the watermelon reads sweeter and softer. Turn the power up and the vapour warms, the sweetness fades slightly, and the ice effect feels sharper. Most users settle on the lower half of the recommended wattage range for this reason, particularly with fruit and ice liquids.
Vape flavour is also personal. Some people find watermelon liquids taste candy-like, others taste slightly artificial after a few hours of continuous use. That fatigue effect, often called vaper's tongue, is normal. If a flavour starts to taste dull, take a break, drink some water, or swap to a different profile for a day before blaming the liquid.
Because this is an e-liquid rather than a finished device, performance is about three things: how much vapour it produces, how the nicotine feels, and how consistently the flavour comes through over the life of a coil and a bottle.
Vapour production. Nic salt liquids in this category are usually mixed with a balanced propylene glycol and vegetable glycerine ratio, commonly 50/50, because that suits small pod coils. Always check the label on your bottle for the exact ratio, but a balanced mix generally gives a modest, even cloud, a clear flavour and quick wicking. A higher-VG liquid would give thicker vapour but wick slowly in small pod coils and can cause dry hits. Nic salts are designed for flavour and nicotine delivery, not cloud chasing, and Watermelon Ice follows that approach.
Nicotine delivery. At 20mg/ml, a nic salt delivers nicotine into the bloodstream faster than the same strength of freebase nicotine, which is closer to the experience of smoking a cigarette. Each puff delivers a small amount, so a few puffs often satisfy a craving. Many people who switch from 20-a-day smoking find 20mg nic salt in a pod kit the first level that actually keeps them off cigarettes. Others find it more than they need and step down to 10mg over a few weeks.
Flavour consistency. A fresh coil gives the cleanest watermelon taste. As the coil ages, sweetness and fruit notes tend to dull first, and the ice note remains the longest. If a bottle tasted great on day one and is flat on day six, the coil is more likely to be the culprit than the liquid. Replacing the coil every one to two weeks, depending on how much you vape, keeps the flavour where it should be.
Rough puff guidance. Puff counts are always estimates because they depend on draw length, wattage and device. As a working figure, a 10ml bottle at pod-style power typically supplies somewhere in the region of 1,500 to 2,500 puffs. Heavier, longer draws on a higher-wattage setup will use it faster, and short, gentle mouth-to-lung puffs on a low-power pod will stretch it further.
In practice, that means a single 10ml bottle comfortably replaces several single-use vapes' worth of liquid, and you only replace the coil or pod rather than the whole battery.
With an e-liquid, build quality comes down to the bottle, the cap, the nozzle and the labelling. These are practical details that affect whether you spill liquid in your bag, get a clean fill, or end up with sticky fingers.
Before first use, check these points. The tamper-evident ring should be intact. The label should be legible with no smudging. The liquid should be clear and a light colour, which for a watermelon ice flavour can range from nearly colourless to a pale yellow or faint pink. Colour can darken slightly over time as flavourings oxidise, and that on its own is not a problem. A cloudy liquid, a strong chemical smell or visible particles are reasons to stop and contact the seller.
The 10ml size is not a branding choice. UK law caps nicotine e-liquid bottles at 10ml and refillable tanks and pods at 2ml. That cap keeps bottle sizes small, so if you want more liquid you buy multiple bottles. It also means each bottle is easy to carry in a jacket pocket and keeps total nicotine in a single bottle low.
If you are travelling or carrying a bottle in a bag, put it upright in a zip-lock pouch. Changes in cabin pressure can force a little liquid out of any partly-filled bottle, which is another reason not to leave large air gaps. Store it away from direct sunlight and heat, as both degrade flavour.
Vaping products are regulated in the UK and a few rules affect how you buy, store and dispose of this bottle. Knowing them keeps you on the right side of the law and keeps your home safer.
Age and purchase. You must be 18 or over to buy nicotine vaping products in the UK. Reputable retailers carry out age checks at the point of sale or at delivery, so expect to be asked for ID. Buying for someone under 18 is a criminal offence.
Nicotine and size limits. UK regulations cap nicotine e-liquid at 20mg/ml and bottles at 10ml, with refillable tanks and pods limited to 2ml. This bottle sits at the maximum strength and size. These limits mean you cannot legally buy stronger liquids from licensed UK sellers. Single-use vapes, which had the same 20mg strength limit, are no longer legal to sell in Great Britain since 1 June 2025, which is why refillable systems and bottled nic salts have become the main route.
Product notification. Compliant products are notified to the MHRA before sale. A bottle without a proper label, a batch number or the required health warning should not be bought.
Home storage checklist:
Disposal. Never pour leftover e-liquid down the sink or toilet. Empty bottles can often be recycled in household plastic recycling once fully empty, but check your local council guidance because rules differ between areas. Devices, pods with built-in electronics and batteries belong in WEEE drop-off points. Many council recycling centres and retailers accept them, and the recycling process recovers valuable metals and prevents fires in bin lorries.
Double Brew Watermelon Ice is sold at 20mg/ml, which is the highest strength that UK law allows for nicotine e-liquid. Choosing the right strength is the most important decision with any nic salt, and getting it wrong is the number one reason new vapers feel uncomfortable or give up.
As a very rough guide, here is how 20mg nic salt typically maps to smoking habits when used in a small pod device:
Signs that your strength is too high include nausea, dizziness, a racing heartbeat, a harsh throat hit that makes you cough, or feeling jittery. If any of these happen, stop vaping, drink water, and get some fresh air. Next time, take shorter, gentler puffs or move to a lower strength.
Signs that it is too low include persistent cravings, taking many more puffs than usual, reaching for cigarettes, and feeling irritable. In that case a higher strength, a different device with more airflow restriction, or a pod with a tighter draw may help.
Remember also that your device matters as much as your strength. A tight, low-power pod delivers less liquid per puff than an open-airflow tank, so 20mg in a restricted pod may feel mild while the same 20mg in an open-airflow device at 25W can feel overwhelming. Nic salts are not intended for sub-ohm use, and the throat hit rises sharply with power.
Many people who start at 20mg gradually reduce over months. A sensible approach is to use 20mg until your cigarette cravings are gone completely, hold there for a few weeks, then drop to 10mg and see how you feel. There is no deadline, and staying smoke-free matters more than the specific number on the bottle. If you are pregnant, have heart conditions, or take medication, speak to your GP or a local stop smoking service before using nicotine products. NHS stop smoking services in England and equivalent services in Scotland, Wales and Northern Ireland offer free support and often provide free vape starter kits through local schemes.
Since the bottle itself has no battery, this section is about the batteries in the devices you will use it with, and how to keep them working safely. Getting the hardware side right will make Watermelon Ice taste better and last longer.
What kind of device suits 20mg nic salt? Look for a refillable pod kit or slim vape pen designed for nic salts. Common features include a battery between roughly 400mAh and 1,000mAh, a fixed or adjustable output between about 8W and 18W, and a refillable pod of 2ml (the legal maximum) with a coil resistance somewhere between 0.6 and 1.2 ohm. Draw-activated kits fire as you inhale, while button-activated kits need a press. Both work equally well with this liquid.
Battery capacity in practical terms. A 500mAh to 700mAh battery typically lasts a moderate vaper most of a day. A 1,000mAh battery stretches that to a day and a half for many users. Higher-capacity batteries are heavier, so it is a trade-off between portability and endurance.
Charging guidelines:
Do not mix cells and liquids unsafely. If your device uses removable 18650 or 21700 cells instead of an internal battery, use only quality cells from reputable manufacturers, carry them in a case rather than loose in a pocket, and never use a damaged wrap. This is typically only relevant for larger mod-style kits, but it is the biggest practical safety point in vaping.
Recycling. Vape devices and batteries should never go in general household waste or kerbside recycling. In the UK, the correct route is a WEEE (waste electrical and electronic equipment) drop-off point. Many local council recycling centres accept vapes and e-cigarettes, and many larger retailers run in-store collection bins. Check your local council website or use a postcode search on a recycling locator for the nearest point.
The coil is where the liquid actually turns into vapour, so choosing the right one makes the difference between a vivid watermelon flavour and a muted, burnt or leaky one. Nic salt liquids like Double Brew Watermelon Ice work best with higher-resistance coils that run at lower power.
Coil resistance guide:
Mesh versus traditional wire coils. Mesh coils use a flat sheet of fine metal mesh rather than a round wire wrapped around cotton. The larger surface area heats more evenly and wicks quickly, which tends to produce better flavour and a longer-lasting coil, particularly with fruit and ice flavours. Standard round wire coils are simpler, cheaper and often found in entry-level pods, and they work perfectly well with this liquid at modest power. If your kit offers both, a mesh coil in the 0.8 to 1.0 ohm range is a good match for Watermelon Ice.
Priming a new coil. Fresh coils need time to saturate. Put a few drops directly on the exposed cotton or wicking holes if your pod allows, fill the pod, close the fill port, and wait five to ten minutes. Take a few gentle puffs without pressing the fire button hard. Skipping this step is the most common reason new coils taste burnt.
Coil life. Sweet liquids and menthol both put more stress on coils than unsweetened ones. Sweeteners can caramelise on the coil surface, creating residue that dulls flavour. As a general guide, expect one to two weeks from a pod coil or around two weeks from a mesh coil at normal use. If the flavour goes flat or you notice a burnt taste even with a full pod, swap the coil.
Pod material. Some pods use plastics that can crack with prolonged exposure to certain flavours and menthol coolants. Rinsing the pod in warm water every few refills and letting it dry fully reduces that risk and keeps flavours from mixing.
Not every liquid suits every vaper. Here is a fair assessment of who will probably enjoy this bottle and who will want to look elsewhere.
It is likely a good fit if you:
You may want to look elsewhere if you:
For existing vapers using lower-strength freebase juice, jumping straight to 20mg salt may be too intense. A more sensible route is to switch to a 10mg nic salt bottle first or to use shorter puffs with a tighter airflow setting.
For people trying to stop smoking, flavour variety does appear to help. Many former smokers report that fruit and ice flavours make it easier to stop thinking about tobacco. Having two or three flavours at home to rotate through can stop palate fatigue, which in turn makes it easier to avoid slipping back to cigarettes.
Filling a pod properly takes a minute and prevents most common problems. Follow these steps the first time and it will become routine.
Puffing technique. For nic salts in pod kits, use a mouth-to-lung style. Draw the vapour into your mouth over two to three seconds, pause briefly, then inhale into the lungs. Short, gentle puffs with a pause of 20 to 30 seconds between them give the coil time to re-wet and keep each puff cooler and tastier.
Refill when the liquid is low, not empty. Running the pod dry burns the cotton, damages the coil and leaves a lingering burnt taste even after refilling. Top up when the liquid level reaches about a quarter of the window.
Storage. Keep the bottle upright, capped tightly, away from sunlight, heat, children and pets. A cool cupboard works well. Most e-liquids have a best-before date printed on the bottle or box, often 12 to 24 months from manufacture, and flavour is most reliable inside that period.
Most issues with nic salt liquids come down to a short list of causes. Here is a quick guide to the problems vapers meet most often with fruit and ice flavours.
When to stop and seek help. If a battery gets hot, swells, or sparks, stop using it immediately and place it somewhere safe and non-flammable. If you swallow nicotine liquid or get it on your skin or in your eyes, rinse with plenty of water and call NHS 111, or 999 if symptoms are severe. Keep the bottle with you so medical staff can see the ingredients and strength.
A fair question about any e-liquid is how much it costs per day, not just per bottle. Because Watermelon Ice comes in the standard 10ml size, you can use a simple calculation to compare it with other options, including the cost of cigarettes or single-use vapes.
How long does a 10ml bottle last? This depends heavily on your puffing habits and device. As rough guides:
Most ex-smokers who switch from a packet a day report using about 1.5ml to 3ml of nic salt per day in a pod kit, which puts a bottle at roughly three to seven days. Treat these figures as estimates because your results will vary with coil type, wattage and how long each puff lasts.
Cost comparison. A 10ml bottle of nic salts costs far less than the equivalent in single-use vapes, which typically held around 2ml of liquid each. In simple terms, one 10ml bottle contains roughly the same amount of liquid as five single-use vapes, though those products were never designed to be refilled. Compared with cigarettes, which cost several pounds per pack of 20 in the UK, a bottle plus the occasional coil usually works out far cheaper per day. Your own figures will depend on current prices and how much you vape.
Ongoing costs to include:
Buying tips. Buying several bottles at once often reduces the cost per bottle and spares you from reordering mid-week. Check delivery thresholds and buy to reach them. Keep a spare bottle and a spare coil at home so one dry pod does not turn into a cigarette. Fruit and ice flavours also tend to be less polarising than niche profiles, so they are a safe pick for a first multi-bottle order.
The overall judgement: for a typical 20mg nic salt fruit-and-ice liquid at the standard 10ml size, Watermelon Ice offers fair value as long as you already own a compatible device. If you are still deciding on a device, factor that cost into your first month.
Watermelon ice is a crowded category. Most large UK nic salt brands make at least one version, so it is useful to know what separates them. Rather than rank individual brands, here is a fair look at the factors that actually differ.
Sweetness. Some competitors lean into candy-style watermelon with a strong, sticky sweetness, similar to sweets. Double Brew Watermelon Ice is more moderate, which suits people who vape all day and tire of heavy sweetness. If you prefer a dessert-like candy profile, a watermelon candy or bubblegum-style liquid will feel sweeter.
Ice level. Many watermelon ice liquids use very high cooling agents that tingle the throat. This bottle sits in the middle. For stronger cooling, look for products labelled as extra ice or arctic. For milder cooling, choose the non-ice watermelon version, if available, or a blend with berry notes.
Nicotine strength options. Many brands offer the same flavour in 10mg and 20mg. The 20mg version here suits those leaving heavy smoking behind. If you want lower strength, look at the same flavour in 10mg or a lower strength from another range.
Bottle size and price. All UK nic salt bottles are capped at 10ml, so price per ml is the only real comparison. Multi-bottle bundles from different sellers can reduce the price per ml significantly.
Alternatives to consider:
Fair summary. Double Brew Watermelon Ice is a balanced, mid-sweet, mid-ice watermelon with sensible 20mg strength and standard packaging. It does not do anything unusual, and that is a point in its favour for people who want a consistent everyday flavour rather than a novelty. If you want extremes of sweetness, cooling or complexity, other liquids are better suited. If you want a refreshing everyday fruit flavour that does not wear out its welcome, it is a sensible option.
| Brand | Double |
|---|---|
| Product type | E-Liquid |
| Nicotine strength | 20mg |
| Available flavours | 1 (Watermelon Ice) |
| Price | £1.10 |
| Availability | In stock — same-day dispatch |
| Compliance | UK TPD-compliant, MHRA-registered |
Double supplies e-liquids to the UK market through Vape Shop Online. We stock the current Double range in full with same-day dispatch on weekday orders before 4pm.
This bottle is 20mg/ml, the maximum strength allowed in the UK, and is best for people who currently smoke around 10 or more cigarettes a day. Lighter smokers or those stepping down usually do better with 10mg. If you feel dizzy, nauseous or find the throat hit too harsh, move to a lower strength or take shorter puffs.
The liquid itself needs no charging, but your pod kit or vape pen does. Use the supplied cable or a quality USB cable with a standard 5V adapter, avoid charging overnight on soft surfaces, and unplug once the indicator shows full. Never use a battery that is swollen, hot or damaged.
Yes, you can switch to other flavours in the range, but rinse the pod and ideally replace the coil first so the old taste does not carry over. Avoid mixing different nic salt liquids in the same pod, as the flavours blend unpredictably and you lose control of the nicotine strength.
It depends on your device and habits. A light user may take up to ten days, a moderate user around five days, and a heavy user around three days. As a rough estimate, 10ml supplies somewhere between 1,500 and 2,500 puffs in a typical pod kit.
For most people it works out much cheaper per day, especially because you only replace the coil or pod rather than the whole device. You do need a compatible refillable kit, so include that one-off cost. Buying several bottles at once usually brings the price per bottle down.
It is intended for adult smokers who want an alternative to cigarettes. It is not suitable for non-smokers, anyone under 18, or people who are pregnant, breastfeeding or have heart conditions unless a healthcare professional has said otherwise. If you are unsure, ask your GP or local stop smoking service.
No. Nic salt liquid at 20mg is designed for low-power pod systems and restricted-draw devices at roughly 8 to 18 watts. In a high-wattage sub-ohm tank it will deliver far too much nicotine and feel very harsh.
We deliver to addresses across the UK, with courier options at checkout and an age check on orders. Delivery times and any free-delivery threshold are shown at checkout before you pay, so you can pick the speed that suits you.
Contact us as soon as possible with your order number and a photo of the issue, and we will arrange a replacement or refund for items that are faulty, damaged in transit or not as described. Because of hygiene and age-restricted product rules, opened bottles may not be eligible for change-of-mind returns.
Empty bottles can often go in household plastic recycling, but check your local council rules first. Vape devices, pods with electronics and batteries must go to a WEEE drop-off point, such as a council recycling centre or a participating retailer, and never in general waste or kerbside recycling.
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.
Arrived well-packaged with next-day delivery. Taste is clean and authentic. Nothing to complain about.
Flavour holds up all the way through. Some brands get weaker after a few days but this stays consistent.
The flavour matches the description perfectly. No weird aftertaste. Proper authentic taste.
My partner tried this and now we've both switched. Smooth hit, proper flavour, fair price.
Cracking flavour, honestly. Been through a few of these already. Can't fault it at the price.
Honestly, I was unsure at first but this has been great. Flavour is strong and lasts the full session. No complaints at all.
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