Blueberry Sour Raspberry / Blueberry Raspberry Double Brew Nic Salts 10ml 20mg

Overview

The Blueberry Sour Raspberry / Blueberry Raspberry Double Brew Nic Salts 10ml 20mg by Double in Blueberry Sour Raspberry / Blueberry Raspberry at 20mg. Free UK delivery over £20, same-day dispatch on weekday orders before 4pm.

Double Brew Nic Salts 10ml 20mg: What You Are Buying

Double Brew Nic Salts is a 10ml bottle of nicotine salt e-liquid, sold here at 20mg/ml, with two fruit variants sitting under one listing: Blueberry Sour Raspberry and Blueberry Raspberry. It is a refill liquid rather than a finished device, which means it is meant to be poured into a refillable pod kit or another low-power device that is designed for nic salt e-liquids. Both variants share the same bottle size and nicotine strength, so the choice between them comes down to flavour alone.

This page is written for UK adults who already vape, or who are moving away from smoking, and want a clear explanation of what this product is, how it behaves in a device and whether it suits them. We have tried to keep the claims honest. Where there is a hard fact, such as the bottle size or the legal nicotine limit, we state it. Where something depends on your device, your puffing style or your own taste, we say so rather than inventing a number to look impressive.

The quick facts:

• Product type: nicotine salt e-liquid for refillable devices
• Bottle size: 10ml, which is the maximum bottle size allowed for nicotine e-liquid in the UK
• Nicotine strength: 20mg/ml, which is the legal ceiling for nicotine e-liquid sold in the UK
• Total nicotine in the bottle: 200mg (10ml at 20mg/ml)
• Variants: Blueberry Sour Raspberry and Blueberry Raspberry
• Suited to: refillable pod systems and mouth-to-lung devices, typically with coils of roughly 0.8 to 1.2 ohm
• Not suited to: sub-ohm tanks and high-wattage devices, where a lower-strength liquid is the sensible match
• Age restriction: 18 and over only; selling or supplying nicotine products to anyone under 18 is illegal in the UK

Nic salts have become the standard format for compact pod vapes because they allow a high nicotine strength without the harsh, scratchy throat hit that the same strength would cause in traditional freebase nicotine. That smoothness is the reason a 20mg salt can feel comfortable at the low wattages pod kits run at, and it is also the reason you should respect the strength: it is easy to take in more nicotine than you intended when each puff feels gentle.

A note on context. Single-use disposable vapes have been banned across the UK since June 2025, and plenty of people who used to buy them have moved to small refillable kits and bottled nic salts instead. This bottle is aimed squarely at that crowd. If you are new to the format, the sections below walk through flavour, performance, build, battery and coil considerations, nicotine strength, filling, troubleshooting and value, so you can decide whether Double Brew is the right bottle to put in your device.

Flavour Profile: Blueberry Sour Raspberry and Blueberry Raspberry

Both variants are built around blueberry, so it helps to think of them as two takes on the same fruit base rather than two unrelated flavours. Taste is personal and the descriptions below are a guide to what the flavour names are designed to deliver, not a laboratory measurement, but they should give you a realistic picture before you buy.

Blueberry Sour Raspberry opens with a rounded, slightly jammy blueberry note on the inhale. Raspberry sits in the middle of the profile and brings the tartness, closer to the sharp side of fresh raspberries than the sugary side of raspberry sweets. The sour element arrives mostly on the exhale and across the sides of the tongue, a light tingle rather than an aggressive acid blast. If you have ever used a disposable vape in a blueberry sour raspberry flavour, you will recognise the general structure: sweet fruit up front, a sharp finish behind it, and a clean aftertaste that does not linger heavily.

Blueberry Raspberry drops the sour element and lets the two berries sit together. Expect a softer, sweeter and more rounded profile, with blueberry leading and raspberry adding a bright, slightly floral edge towards the end of each puff. Without the sour note the flavour feels fuller and less sharp, which some vapers find easier to enjoy through a long session.

What the two have in common:

• A berry-forward profile with no heavy cream, tobacco or dessert layer
• A flavour that is recognisably fruity but not syrupy at normal pod-kit temperatures
• A finish that fades fairly quickly, which keeps the palate fresh between puffs
• Enough sweetness that you should expect some coil residue over time, as with most fruit liquids

How strongly the flavour comes through depends heavily on the device. Low-wattage pod kits tend to show fruit flavours at their clearest, because the liquid is warmed rather than hot. Push the same bottle through a device running too hot and the sweetness caramelises, the berry notes flatten and the coil can taste burnt. A warm, not hot, vape is where these flavours work best.

One honest caveat: fruit liquids can be affected by what you vaped before. If you are switching from a menthol, tobacco or heavily sweetened dessert liquid, give the coil time to clear, or fit a fresh pod or coil, before judging how the berry flavours really taste.

Choosing Between the Two Variants

With only two variants on this listing, the decision is simple, but it is still worth thinking about how you actually vape. The question is not which flavour is objectively better; it is which one you will still enjoy after the third day of the same bottle.

Choose Blueberry Sour Raspberry if:

• You like sharp, tangy flavours and tend to find purely sweet liquids tiring after a while
• You are coming from sour or sherbet-style disposables and want something with a similar structure
• You vape in short, frequent bursts and appreciate a flavour that wakes the palate up each time
• You tend to prefer cold or cool drinks to sugary ones

Choose Blueberry Raspberry if:

• You prefer a smoother, softer berry flavour without any acidic bite
• You are newer to nic salts and want a gentler overall experience
• You vape for longer sessions, where a sour finish can start to feel sharp on the tongue
• You like fruit flavours that taste like a berry blend rather than a sweet shop

Because both come in the same 10ml bottle at the same price tier, many customers simply buy one of each and alternate. That works well provided you keep the devices or pods separate. Swapping flavours in the same pod without changing the coil leads to muddy flavour, because the cotton still holds the previous liquid. If you only have one device, finish or empty the pod, let it sit, and fit a fresh coil or pod when you change flavour. Rinsing the tank with warm water and letting it dry fully also helps, and it is worth doing in any case when you switch between a sour profile and a smooth one.

If you are really undecided, the smooth Blueberry Raspberry is the lower-risk first purchase. The sour variant is a more distinctive taste, and while many people like it, a minority find the tartness too sharp, particularly in the first few puffs of a session. Equally, if you already know that you enjoy tangy fruit, there is little reason to start with the milder option. Either way, both bottles are inexpensive enough that trying the second one later is not a large commitment.

Performance and Puff Delivery

Because this is a liquid rather than a sealed device, there is no printed puff count on the bottle, and we would be misleading you if we quoted one as a hard figure. What we can do is explain how the numbers work so you can make a sensible estimate for your own setup.

Nicotine delivery. At 20mg/ml, a nic salt delivers nicotine quickly and with a relatively smooth throat hit. In a typical low-wattage pod kit, a few puffs are usually enough to take the edge off a craving, which is exactly what the salt format is built for. Compared with a 20mg freebase liquid, the same strength in salt form feels less harsh but delivers nicotine faster to the bloodstream, so many people find 20mg salts feel stronger overall than the number suggests.

Vapour production. Pod kits that suit nic salts usually run at around 8 to 15 watts. At that power, expect modest, discreet clouds rather than the large plumes of a sub-ohm setup. The airflow is typically tight and mouth-to-lung, meaning you draw into your mouth first and then inhale.

How long 10ml lasts. This is a rough guide rather than a lab figure, and your own mileage will vary:

• Many small pod kits use somewhere between 0.5ml and 1.5ml of liquid per day for a regular vaper
• On that basis a 10ml bottle often lasts anything from roughly a week to around two weeks for a moderate user
• Heavier users, or anyone running a higher-wattage device, can get through a bottle in three to five days
• As a very loose indication, a puff on a low-power pod uses a few hundredths of a millilitre, so a 10ml bottle can plausibly cover several thousand puffs

Consistency. A well-made nic salt should taste the same from the first fill to the last drop in the bottle. Fruit flavours do change slightly as a coil ages, because sweeteners build up as a film, but that is a coil issue rather than a liquid fault. If the flavour fades suddenly after a week or so, change the coil before blaming the bottle.

Chain vaping. Nic salts are the wrong format for constant chain vaping. Taking many puffs back to back at 20mg can cause headaches, dizziness or nausea, and it also overheats the coil. Space your puffs out, and treat the hit as something that arrives quickly rather than something you need to keep chasing.

Bottle Design and Build Quality

A bottle may seem like the least interesting part of a nic salt, but it determines how easily and cleanly you can refill your device, so it deserves a proper look.

Capacity and format. The bottle holds 10ml, the largest size permitted for nicotine e-liquid under UK regulations. It is a plastic bottle with a narrow dropper-style nozzle, the standard layout for pod refilling. The smaller size also keeps the total nicotine content at 200mg, which is part of the reason UK rules cap the format.

Safety features you should expect. UK-sold nicotine e-liquid is required to come in child-resistant, tamper-evident packaging, and the label must carry health warnings and ingredient information. When your bottle arrives, check that:

• The tamper-evident ring on the cap is intact before first opening
• The child-resistant cap works as intended, normally by pushing down and twisting
• The label is legible and shows the flavour, nicotine strength and batch details
• There is no residue on the outside of the bottle or inside the packaging that would suggest a leak in transit

Nozzle and fill ports. A fine nozzle is helpful with modern pod kits, whose fill holes are often small and sit tight to the body of the pod. The squeeze characteristics of the bottle matter just as much as the nozzle: a bottle that is too stiff forces a rush of liquid, while a very soft one can pump air back in and cause glugging. Squeeze gently, tilt the bottle at a slight angle and work in short pulses rather than one long press. If your device uses a particularly narrow port, an inexpensive refill needle tip can be added, but most pods designed for nic salts accept a standard nozzle without trouble.

Storage. Keep the bottle upright, capped and away from direct sunlight and radiators. Heat and light degrade e-liquid over time, darkening the colour and dulling the flavour. A cool drawer or cupboard is ideal, well out of reach of children and pets, because nicotine liquid is toxic if swallowed or if it gets on the skin in quantity.

Honest limits. This is a straightforward plastic bottle with no gimmicks. It will not feel premium, and it is not trying to. What matters is that it seals properly, the nozzle is workable and the label is clear, and those are the things to check when it arrives.

Battery and Charging: Getting the Device Side Right

A bottle of e-liquid has no battery, so battery performance depends entirely on the pod kit or device you pair it with. That said, the way nic salts behave has a direct effect on how long your battery lasts, so it is worth explaining the link.

Typical battery sizes. Refillable pod kits that suit nic salts usually carry batteries in the range of roughly 400mAh to 1,000mAh. Smaller pen-style kits sit at the low end, while larger pod mods go higher. Because nic salt devices run at low power, a modest battery can last a surprisingly long time for a moderate user, often a full day or more between charges.

Why salts are easy on batteries. A 20mg nic salt satisfies a craving in fewer puffs than a low-strength liquid, so you tend to vape less often. Fewer puffs at low wattage means less drain. This is one of the practical advantages of pairing a high-strength salt with a compact kit.

Charging sensibly.

• Use the cable supplied with your device, or a reputable USB-C cable of good quality
• Plug into a standard wall adapter or a computer port rather than a very high-output fast charger, unless the device maker says it is fine
• Do not leave a device charging unattended overnight on a bed or sofa
• Stop using the device if the battery swells, gets unusually hot or smells odd, and do not charge it
• Never carry a loose spare battery in a pocket with keys or coins

What to do with old batteries and kits. Lithium batteries must never go in household rubbish or recycling bins, because they can cause fires in collection vehicles and waste sites. In the UK, vape devices and their batteries should be taken to a retailer that offers take-back, or to a recycling drop-off point or household waste recycling centre that accepts small electricals. Many of these accept vapes free of charge, so check your council website for the nearest location.

Matching liquid to device. Make sure your device is designed for nic salt liquids. Kits built for high-VG sub-ohm liquids deliver too much power and heat to a salt, which produces harsh hits and a short coil life. A device that lets you adjust wattage downwards is an advantage if you find the default output too warm for fruit flavours.

Coil and Mesh Tech: What Works With This Liquid

The coil is where the liquid is turned into vapour, and getting the pairing right is the biggest single factor in how this e-liquid tastes. Nic salts are designed for low-power, higher-resistance coils, and that guidance applies here.

Recommended resistance. Look for coils in the region of 0.8 to 1.2 ohm for most mouth-to-lung pod kits. Some devices ship with 1.0 ohm or 1.2 ohm coils as standard, and these are a very good match for a 20mg salt. Coils below roughly 0.6 ohm are made for higher power and are best left for lower-strength liquids.

Standard wire coils versus mesh. The two main designs behave differently:

• Standard wire coils: a wire wrapped around cotton. Reliable, simple and widely available, with good flavour at low wattage. Heat is concentrated in a small area, so they are slightly more prone to burning if the wick dries out.
• Mesh coils: a flat or curved sheet of fine mesh in contact with cotton over a larger surface area. They heat more evenly, often give a fuller flavour and larger vapour, and typically recover quickly between puffs. They also tend to draw more power, which suits slightly higher wattage but needs the device to be set sensibly for a salt.

Cotton and ceramic. Cotton wicks are by far the most common and give good flavour clarity with fruit liquids. Ceramic coils last longer but can mute subtle flavours slightly. Neither is wrong; the choice depends on your device.

Wattage guidance. Start at the low end of the range recommended on the coil and raise it by small steps only if you want warmer, thicker vapour. Most 1.0 ohm pod coils are happy at around 8 to 12 watts. If the berry flavour starts tasting caramelised or scorched, drop the power.

Coil life. Because these are sweetened fruit liquids, expect to replace the coil about every one to two weeks of regular use. Sweeteners leave a film that dulls flavour over time. Warning signs are muted taste, a faint burnt note, gurgling and a drop in vapour production. Replace the coil rather than raising the power to compensate, which only makes the build-up worse.

Priming. Always give a new coil five to ten minutes to soak before the first puff, and take a couple of gentle drags without firing at first. A dry coil burns instantly and is ruined within seconds.

Nicotine Strength Guidance: Is 20mg Right for You?

This listing is a single strength, 20mg/ml, which is the highest strength legally sold in the UK. Choosing it is a decision you should make deliberately rather than by default, so here is how to think it through. This is general information rather than medical advice; if you want personal guidance, a local stop smoking service or pharmacist can help.

Who 20mg usually suits:

• People who smoke around ten or more cigarettes a day and are switching fully to vaping
• Former disposable users who were already using a 20mg device and want to keep the same level
• Those who find lower strengths leave them reaching for the device constantly without feeling satisfied

Who may want something lower:

• People who smoke fewer than around ten cigarettes a day, or who smoke only occasionally
• Anyone who finds 20mg nic salts cause nausea, dizziness, headaches, a racing heart or lightheadedness
• Anyone who vaped before on a low-strength freebase and is trying salts for the first time, because salts feel considerably stronger at the same number
• Anyone already using other nicotine products at the same time

A useful rule of thumb is that 20mg nic salt is a strong product. A smaller number of puffs does the work of many more on a 3mg or 6mg liquid. Because it hits quickly and smoothly, it is possible to overshoot without realising. If you feel unwell, put the device down, sit somewhere with fresh air and drink some water; if symptoms persist, seek medical advice.

Common sense on safety:

• There are 200mg of nicotine in a full 10ml bottle at 20mg/ml, enough to be dangerous if swallowed, especially by a child or a pet
• Wash off any skin contact immediately with soap and water
• Do not mix strengths in the same pod to reach a number in between unless you know exactly what you are doing
• If you are pregnant, breastfeeding or have a heart condition, speak to a healthcare professional before using any nicotine product

Nicotine is addictive. If you do not currently smoke or vape, this product is not for you, and it is illegal to sell it to anyone under 18. If your goal is to stop altogether, many people reduce strength gradually over time, moving down to a lower-strength liquid once cravings settle, and NHS stop smoking services offer free support that can be combined with vaping.

Who This Is For, and Who Should Skip It

Not every bottle suits every vaper, and a good buying guide should say so. Here is an honest summary of who gets the most out of Double Brew Nic Salts and who is better served elsewhere.

A good fit if you:

• Are an adult smoker moving to vaping and want a straightforward fruit flavour in a strength that matches cigarette-level cravings
• Used disposable vapes until the ban and now have, or are planning to buy, a refillable pod kit
• Already own a nic-salt-compatible pod device and want an inexpensive, no-fuss refill
• Like berry flavours and prefer the choice between a smooth blend and a sharper sour variant
• Value discretion, because low-wattage salts produce small, quickly dispersing clouds

Probably not for you if you:

• Have never smoked or vaped; nicotine is addictive and non-smokers have no reason to start
• Are under 18, in which case buying or using this product is against the law
• Own a sub-ohm tank or a high-wattage mod; the liquid is the wrong strength and type for that kind of device and will be harsh
• Want a low nicotine level of 3mg, 6mg or 12mg; this listing is 20mg only
• Dislike fruit or sour flavours and would rather have tobacco, menthol or dessert profiles
• Expect a ready-to-use device; you need a compatible kit to use this liquid

If you are new to refillable vaping. You will need a basic pod kit, replacement coils or pods, and somewhere safe to store the bottle. Starter kits are widely available and not expensive, and the learning curve is shallow: filling, priming and replacing a coil take only a few minutes once you have done each once. Choose a kit with a coil in the 0.8 to 1.2 ohm range and an adjustable or modest default wattage. Avoid kits aimed at sub-ohm or cloud-chasing use.

If you are an experienced vaper. You already know your coil and wattage preferences. The thing to check is simply that your kit takes nic salts well and that you are happy with the berry flavour profile. If you prefer a very different taste, there are plenty of other flavours across the range, but if blueberry and raspberry are in your rotation, this is a reasonable pair to try.

How to Use: Filling, Priming and First Puffs

Refilling a pod is easy once you have done it, but it is a step where mistakes cause leaks, flooding and wasted liquid. Follow these steps for a clean fill.

Step by step:

• Check compatibility. Confirm your pod or tank is designed for nic salts and that your coil resistance is in the 0.8 to 1.2 ohm region.
• Power down. Turn the device off or remove the pod so it cannot fire while you are handling it.
• Open the fill port. Most pods have a rubber bung or sliding cover. Lift or slide it clear without forcing it.
• Hold the pod upright. Push the nozzle into the port at a slight angle and squeeze gently in short pulses.
• Stop below the maximum line. Leave a small air gap at the top. Overfilling is the most common cause of leaks and liquid reaching the mouthpiece.
• Close the port fully. A half-seated bung lets air escape and liquid seep out.
• Wipe the pod clean. Nicotine liquid on your fingers or the mouthpiece is both unpleasant and unsafe.
• Let it soak. Wait five to ten minutes if the coil is new, so the cotton can absorb liquid properly.
• Take gentle first puffs. Take a few slow drags without chasing a big hit, and then settle into your usual pattern.

How to inhale. Nic salt kits are designed for mouth-to-lung use: draw the vapour into your mouth, pause briefly, and then inhale it. Keep the draw slow and steady, around two to three seconds, and avoid sharp tugs that can pull liquid into the airway.

Everyday tips:

• Top up before the pod runs completely dry; a dry coil burns quickly
• Keep the device upright when not in use, and avoid leaving it in a hot car or a warm pocket
• If you keep the device in a bag, lock or cover it so it cannot fire accidentally
• Record the flavour you filled so you do not confuse the two variants if you own both

Disposal. Empty bottles should be fully used, rinsed and left to dry; whether they can go in household plastic recycling depends on your council, so check locally. Never pour leftover liquid down a sink or drain; take unwanted liquid to a household waste recycling centre. Used pods, coils and batteries should go to a vape or small electricals drop-off point, not the general rubbish.

Troubleshooting Common Problems

Most problems with refillable pods have simple causes. Here are the ones we hear about most often with nic salts and how to deal with them.

The flavour tastes burnt.

• Check the coil has had time to soak after fitting
• Check the pod is not running low on liquid
• Lower the wattage if your device allows it
• If the coil is older than a week or two, replace it

The flavour is weak or gone. Sometimes this is the coil, and sometimes it is vaper's tongue, a temporary dulling of taste after using the same flavour for a long time. Try switching to a different flavour for a day, drinking water, or using a menthol or plain mint for a short period before returning. If a fresh coil does not fix it, check that you are not running the device too hot.

The pod leaks.

• You may have overfilled it, so fill to a point below the maximum line
• The fill port may not be seated properly, so press it flat and check for gaps
• Cold-to-warm temperature changes, such as a bag sitting by a radiator, cause pressure shifts; store the device upright and at a steady temperature
• Flights and travel at altitude can push liquid out; empty the pod before flying if you can

Gurgling or spitting. This usually means condensation or a flooded coil. Remove the pod, blow gently through the mouthpiece to clear the airflow channel, and wipe it dry. If it keeps happening, the coil is probably worn out or the pod is overfilled.

Dry hits. Dry, harsh puffs mean the cotton is not absorbing enough liquid. Top up, wait, and prime. Do not carry on firing a dry coil, because it will taste burnt for good.

The throat hit is too harsh. At 20mg, a harsh throat hit can mean the device is running too hot, or that you are taking draws that are too large or too fast. Lower the power, shorten the draws, and give the vapour a moment in your mouth before inhaling. If it still feels too strong, a lower-strength salt is the better choice.

You feel unwell. Dizziness, sweating, nausea or a pounding heart after vaping are signs of too much nicotine. Stop, sit down, get fresh air and drink water. If symptoms continue or worsen, seek medical advice. Next time use fewer puffs or a lower strength.

The pod does not fire. Check the battery is charged, the pod is clicked in fully, and the contacts are clean and dry. A drop of liquid across the contacts can interrupt the connection, so wipe them with a dry cloth.

Value for Money and How It Compares

Value is more than the sticker price on a single bottle. The useful measure is the cost per day of use, and how long the liquid keeps tasting the way you expect. We have deliberately not printed a price in this guide because prices change; check the current price on this page and compare it with the points below.

The value logic of 10ml nic salts.

• A 10ml bottle at 20mg is a compact, low-cost way to refill a pod kit, and it usually lasts a regular vaper a week or more
• Because you reuse the device and only replace the liquid and the occasional coil, the running cost is generally lower than buying disposables repeatedly
• Many people find vaping cheaper than smoking, although the exact comparison depends on your habits and on how many coils you use
• Buying both variants together lets you rotate flavours without spending much extra

How it sits next to other nic salt ranges. UK shoppers have plenty of choices, and a fair comparison helps. Established ranges such as Elfliq, IVG Salts, Nasty Salt, Dinner Lady Salts and Hayati offer broad flavour menus and longer track records, and several carry strong brand recognition. Their advantages are variety and familiarity: if you want a specific flavour like a cola, a dessert or a particular menthol blend, you are more likely to find it there than here.

Where Double Brew makes sense is as a focused, easy-to-understand option. It offers a standard 10ml, 20mg salt in two well-known berry profiles, and for a buyer who simply wants blueberry and raspberry without wading through dozens of flavours, that simplicity is the point. We would not claim it outperforms the larger names on flavour quality; that is subjective, and the sensible way to judge is to try a bottle and compare it with what you currently use.

Compared with pre-filled pods and disposables.

• Pre-filled pods are convenient and avoid handling liquid, but you pay a premium per ml and are limited to the brand's own system
• Disposables are now banned in the UK, so they are no longer a legal option
• Bottled salts give you flexibility: you pick the device, the coil and the flavour, and you can change any of them without replacing everything

Where it is weaker. You need a compatible device already, which adds an up-front cost for newcomers. There are only two variants and one strength on this listing, so anyone wanting a lower nicotine level or a different flavour family has to look elsewhere. And, as with any fruit liquid, coil replacement is a recurring cost. Weighing all of that, we think it is reasonable value for a regular nic salt user who likes these two flavours, and a practical choice for anyone moving from disposables to a refillable kit.