Sour Green Apple Mix Lab Salts 10mg

Overview

The Sour Green Apple Mix Lab Salts 10mg by Mix in Sour Green Apple at 20mg. Free UK delivery over £20, same-day dispatch on weekday orders before 4pm.

Overview of Mix Lab Salts 10mg Sour Green Apple

Mix Lab Salts 10mg Sour Green Apple is a 10ml nicotine salt e-liquid from the Mix brand, made for refillable pod kits and other low-powered vape devices. The flavour pairs a crisp green apple note with a tart, sour finish, and the nicotine sits at 10mg/ml, which is 1% by volume. If you are new to the term, nicotine salt (usually shortened to nic salt) is nicotine bound to an acid, commonly benzoic acid, which gives a smoother throat feel than traditional freebase nicotine at the same strength. That smoothness is the main reason nic salts have become the usual choice for small pod systems.

The bottle holds 10ml, which is the largest container size permitted for nicotine-containing e-liquid in the UK. The 10mg/ml strength is half of the 20mg/ml legal ceiling that applies to nicotine e-liquids, refillable pods and, until they were prohibited in Great Britain in June 2025, single-use vapes. That makes this a middle-of-the-road strength: higher than the 3mg and 6mg freebase liquids used in sub-ohm tanks, but gentler than the 20mg salts that heavier smokers often start on.

Here is the product at a glance.

• Brand and range: Mix, Lab Salts
• Flavour: Sour Green Apple, a fruit profile with a tart finish
• Nicotine type and strength: nicotine salt, 10mg/ml (1%)
• Bottle size: 10ml plastic bottle with a narrow dropper tip and a child-resistant, tamper-evident cap
• Base: propylene glycol (PG) and vegetable glycerine (VG); salt liquids are commonly balanced somewhere near 50/50, but always check the label on your batch for the exact ratio
• Suited to: refillable pod kits and mouth-to-lung (MTL) devices, coil resistance of roughly 0.8 to 1.2 ohm, around 8 to 18W
• Age restriction: 18+ only, in line with UK law

This guide walks through performance, flavour, bottle design, the device side of the equation, nicotine strength, troubleshooting and value, so you can judge whether it suits your kit and your habits before you order. It is written for adult smokers and existing vapers in the UK. If you do not currently smoke or vape, nicotine products are not for you, and nobody under 18 should buy or use them.

Performance and vapour delivery

An e-liquid does not have a puff count printed on the box the way a disposable does, but you can still reason about how much use you will get. In a typical refillable pod kit running a 0.8 to 1.0 ohm coil at 10 to 14W, most people use somewhere between 250 and 350 puffs per millilitre. On that basis a 10ml bottle gives roughly 2,500 to 3,500 puffs. Treat that as an estimate rather than a promise: your puff length, wattage, coil age and airflow setting all move the number up or down. To put it in context, a 600-puff single-use vape holds about 2ml of liquid, so one 10ml bottle contains about the same amount of liquid as five of them, without the extra plastic and battery waste.

Vapour production at this strength and in this kind of device is modest by design. Nic salts are used in low-power setups because the nicotine hits adequately at small vapour volumes. If you are used to a sub-ohm tank producing big clouds, a pod kit running this liquid will feel restrained. What you get instead is a tighter, more cigarette-like draw with a noticeable but not harsh throat sensation, a gentle warmth in the chest and flavour that stays focused rather than diluted by large volumes of air.

The throat hit at 10mg/ml is light to moderate. Salt nicotine is absorbed more quickly than freebase, so the first few puffs often feel more satisfying than the number on the bottle suggests, while the sharpness at the back of the throat stays low. If you move up to 20mg salts you will notice a clear step up in both. If you move down to 5mg you will notice the opposite, and many people find they chain-vape a little more to compensate.

Consistency from the first fill to the last is mostly a matter of coil health and keeping the pod topped up. A fresh coil should deliver steady flavour for the first several days. As the coil ages you may notice the apple note flatten and a slightly toasted edge creep in, which is the cue to change the coil rather than a sign that the liquid has gone off.

• Expected puffs per 10ml: about 2,500 to 3,500 in a low-power pod kit
• Best wattage range: 8 to 18W, depending on your coil's rated range
• Draw style: mouth-to-lung or a restricted direct-to-lung draw
• Throat hit: light to moderate at 10mg/ml
• Vapour volume: low to medium, in keeping with pod-style devices

Flavour profile: crisp apple with a sour edge

The headline here is green apple, the Granny Smith end of the apple spectrum rather than the soft, sweet red apple note. On the inhale you should get a bright, juicy apple flavour that arrives early and stays clean. The sourness comes in just behind it, sitting mostly on the sides of the tongue and the back of the mouth, similar to the tingle you get from a sour apple sweet. On the exhale the flavour rounds out and the tartness softens, leaving a lightly sweet apple finish that lingers for a moment.

Sour flavours in e-liquid are usually built with food-grade acids such as malic or citric acid, which are the same family of acids found in real apples and citrus fruit. They are used in very small amounts. The effect is a flavour that feels sharper and fresher than a straight apple, and it tends to stay interesting through a long session in a way that very sweet profiles sometimes do not. If you have ever found dessert or candy liquids cloying after an hour, a tart profile like this one is an easy alternative.

How sour it tastes depends on your setup more than you might expect. At lower wattage the sourness is more pronounced and the apple note stays crisp. Turn the power up and the liquid heats further, the sweetness comes forward and the tartness mellows into something closer to baked apple. If you find the sour edge too sharp, drop the wattage slightly or loosen the airflow; if you want it to bite, go the other way and tighten the draw a little.

One honest caveat: sour liquids are a matter of taste, and strong sour notes are not for everyone. People who normally vape smooth, creamy or menthol flavours may find the first few puffs surprising. Give the flavour a full tank before deciding. Palates adjust, and the sharpness that seems loud on day one often reads as pleasantly fresh by day three.

• Inhale: bright green apple with a quick tart tingle
• Exhale: softer apple, light sweetness, mild sour finish
• Aftertaste: clean and short, with no heavy sugary coating
• Sweetness level: low to medium, balanced by the acidity
• Cooling: none claimed; this is a fruit profile rather than a menthol or ice blend

Bottle design and build quality

E-liquid does not have a body or screen to assess, so build quality comes down to the bottle, the cap, the label and how well the product protects what is inside it. The Mix Lab Salts 10ml is supplied in a standard plastic bottle with a narrow dropper-style tip, which is the format UK vapers will recognise from almost every nicotine e-liquid on the market. The narrow tip matters in practice because many pod kits have small fill ports of 3 to 5mm, and a wide nozzle would spill liquid across the outside of the device.

The cap is child-resistant and tamper-evident, as required by UK rules for nicotine-containing e-liquid. You push down and turn to open it, and a break-away ring shows whether the bottle has been opened before. When your order arrives, check that this ring is intact. If it is broken or missing, do not use the liquid and contact the shop with your order number so it can be dealt with.

Labels on UK nicotine e-liquids carry the information you need to use the product safely. Expect to see the nicotine strength, the volume, the ingredients, the batch number, health warning text and a hazard symbol, along with a notice that the product is for adults only. Read the label before you fill a device, especially if you also keep other strengths in the house. It is worth storing different strengths in clearly separate places, because a 10ml bottle of 10mg liquid looks very similar to a 20mg bottle at a glance.

Plastic bottles for e-liquid are usually made from materials designed to resist the propylene glycol and flavourings inside, but they still deserve sensible care. Keep the bottle upright, away from sunlight and out of hot cars, and wipe the tip after filling so residue does not build up under the cap. Heat and light are the two things most likely to darken the liquid and change the flavour over time.

On environmental handling: once a bottle is empty, rinse it, take the cap off and check your local council's guidance on plastic recycling, since rules differ from area to area. Do not put liquid-contaminated bottles into general recycling without rinsing. Any batteries or devices you use with the liquid should never go in household bins; the Recycle Your Electricals service lists drop-off points across the UK, including many supermarkets, council recycling centres and electrical retailers that take back small electricals and vapes.

• Container: 10ml plastic bottle with a narrow tip for small fill ports
• Closure: child-resistant, tamper-evident cap
• Check on delivery: intact tamper ring, legible label, no leaks
• Storage: upright, cool, dark and well out of reach of children and pets

Battery and charging: the device side

Strictly speaking this product has no battery, because it is a liquid. The battery that matters is the one in the device you put it in, and getting that pairing right affects both flavour and convenience. Most refillable pod kits that suit a 10mg nic salt carry a rechargeable battery of between roughly 400mAh and 1,000mAh, charged over USB-C. That is plenty for a low-power setup. As a rough guide, a 1,000mAh lithium cell running at 12W delivers somewhere in the region of 250 to 350 puffs in everyday use, which lines up with about one millilitre of liquid per charge. A smaller 500mAh battery will give you about half of that.

Because nic salts work at low power, they are gentle on batteries. Running at 8 to 12W rather than 25W or more means less current draw, less heat and a longer day between charges. If you find your device is draining faster than expected, look first at whether you are firing it at the top of its wattage range, as battery life falls off quickly the harder you push it.

A few practical charging habits are worth following.

• Use the charging cable supplied with the device, or a reputable USB-C cable, and a standard wall adapter or computer port rather than an unknown fast charger.
• Do not leave a device charging unattended overnight or on a soft surface such as a sofa or bed.
• Stop using a device that gets unusually hot, swells, smells odd or has damaged casing.
• Keep loose spare batteries in a case, never in a pocket with keys or coins.
• Charge at room temperature; avoid charging a cold device straight after bringing it in from outside.

When a device or battery reaches the end of its life, do not bin it. Lithium batteries can start fires in bin lorries and recycling plants. Take them to a household waste recycling centre or any shop with a small electricals take-back point, and use the Recycle Your Electricals postcode finder to locate the nearest drop-off. Many vape shops also accept used devices for recycling.

Coil and mesh technology: matching the liquid to your device

The coil is where this liquid becomes vapour, and choosing a sympathetic coil makes a clear difference to how a nic salt tastes and feels. Nic salts are designed for resistance values between roughly 0.8 and 1.2 ohm, which at typical pod voltages gives a power draw of around 8 to 18W. In that range the liquid vaporises cleanly, the nicotine delivery stays smooth and the sour apple note keeps its character.

There are three coil styles you are likely to meet in refillable pod kits.

• Standard wire coils: A simple wound wire in a cotton wick. These are inexpensive, heat up quickly and work well in the 1.0 to 1.2 ohm range for MTL draws.
• Mesh coils: A flat sheet of fine metal mesh gives more surface area for the liquid to contact, which tends to produce a more even heat, a fuller flavour and slightly more vapour. Mesh coils around 0.8 ohm are a good match for fruit profiles like this one.
• Ceramic coils: A porous ceramic wick with a heating element embedded inside. They are known for clean flavour and long life, but they can be slower to prime and are less forgiving of thicker liquids.

Viscosity matters too. Nic salt liquids are usually thinner than high-VG freebase blends, which suits the small wicking holes in pod coils. If you were to put this liquid in a coil designed for thick 70VG juice, you could see leaking or flooding. Conversely, if you put a high-VG liquid in a coil meant for salts, you will see dry hits and burnt tastes. Match the coil to the liquid thickness stated on the label.

Sour and fruit flavours tend to be harder on coils than plain or tobacco ones. Sweeteners can caramelise on the heating element and build up a dark film, which dulls flavour. As a rule of thumb, expect to change a pod coil about every one to two weeks of moderate use, or sooner if the flavour goes flat or you notice a burnt taste. Always prime a new coil by putting a few drops directly on the cotton or mesh and letting it soak for five minutes before the first puff.

Avoid putting 10mg nic salt in a sub-ohm tank at high wattage. At 40W and above the nicotine delivered per puff rises sharply, the throat hit becomes harsh and you will use through the bottle very quickly. Sub-ohm setups are better served by freebase liquids at 3mg or 6mg.

Nicotine strength guidance: is 10mg the right choice?

Picking the right nicotine strength is the single biggest factor in whether a vape actually works for you. The 10mg/ml strength in this liquid is a medium option in the nic salt range. The UK maximum for nicotine e-liquid is 20mg/ml, and common salt strengths run from 5mg through 10mg and 11mg to 18mg and 20mg. These are guidelines, not medical advice, and your own experience matters more than any chart.

• 20mg/ml: Usually chosen by people leaving a pack-a-day habit behind. It gives the strongest nicotine delivery available in UK e-liquid.
• 10mg/ml: Often chosen by light to moderate smokers, by people stepping down from 20mg, or by vapers who use a pod kit frequently through the day and find 20mg too much.
• 5mg/ml: A low-end option for people close to quitting or those who only vape occasionally.
• 0mg: Available if you want the flavour and the habit without nicotine.

Because nic salts are absorbed faster than freebase, 10mg of salt can feel closer to the satisfaction that 12 to 15mg of freebase would give. That is why a strength that sounds low on paper is often adequate in practice. A common rule of thumb is that someone smoking up to ten cigarettes a day will start around 10mg of salt, and someone smoking more will start around 18 to 20mg, but individual response varies widely depending on how deeply you inhale and how often you vape.

Signs that your strength is too high include dizziness, nausea, a headache, a racing heartbeat or a throat hit that feels harsh enough to make you cough. Signs that it is too low include persistent cravings, chain-vaping and returning to cigarettes for the occasional hit. If you notice either, change strength rather than simply vaping more or less; moving by one step is usually enough.

If your aim is to stop smoking altogether, it is worth knowing that NHS stop smoking services offer free support, and that pairing a vape with behavioural help increases the chance of success compared with going it alone. Nicotine is addictive, and vaping is not risk-free, even though it is widely considered far less harmful than smoking tobacco. Pregnant women, people with heart conditions and anyone taking medication should speak to a healthcare professional before using nicotine products.

Who this e-liquid is for, and who should skip it

Mix Lab Salts 10mg Sour Green Apple is aimed at a fairly specific group of adult UK vapers. Knowing whether you fall into it will save you money and a disappointing first bottle.

A good fit if you:

• Are an adult smoker moving to vaping and smoke a light to moderate amount.
• Already own a refillable pod kit with a 0.8 to 1.2 ohm coil and need a flavour for it.
• Prefer fruit flavours and like a bit of sharpness rather than pure sweetness.
• Want to step down from 20mg salts without going all the way to 5mg.
• Are looking for a lower-waste alternative to single-use vapes, now that those are no longer sold in Great Britain.
• Like the idea of a 10ml bottle that costs less per millilitre than many disposables used to.

Probably not for you if you:

• Have never smoked or vaped. Nicotine is addictive and there is no benefit to starting.
• Use a sub-ohm tank at 40W or more and want big clouds; a freebase shortfill at a low strength suits that style far better.
• Dislike sour or acidic flavours, in which case a sweeter apple or a mellow fruit blend will be more comfortable.
• Smoke heavily and need a high nicotine hit; 20mg salt will serve you better.
• Are under 18, pregnant, or have a medical condition that makes nicotine inadvisable.
• Want a ready-to-use device in the box. This is a liquid, so you will need a compatible refillable kit.

It is also worth being clear about who this is not designed for in terms of device. Closed pod systems that take pre-filled proprietary pods generally do not accept bottled e-liquid. Check that your device is refillable and that its coil resistance suits a nic salt before ordering.

How to use it: filling, priming and first puffs

If you have used refillable pods before, none of this will be new, but a short checklist helps avoid the most common first-day problems such as leaks, dry hits and weak flavour.

• Check the seal. Make sure the tamper-evident ring on the cap is intact and the bottle is clean and dry before opening.
• Prepare the device. Switch the device off, remove the pod or tank and, if it has one, open the fill-port bung.
• Fill slowly. Put the narrow tip into the fill port and squeeze gently, stopping about a millimetre below the maximum fill line. Do not cover the central air tube, as liquid will flood the coil.
• Prime the coil. If the coil is new, add two or three drops directly to the wick opening and then wait five to ten minutes before use.
• Refit and settle. Reinsert the pod, wipe off any spilled liquid and let the device sit upright for a couple of minutes.
• First puffs. Take a few short puffs of two to three seconds with a pause between each. Do not chain-vape on a fresh coil; give the wick a chance to refill.
• Adjust. If the device has adjustable airflow or wattage, change one setting at a time until the flavour and throat hit suit you.

Technique matters with a nic salt. Draw gently and steadily, hold the vapour in your mouth for a second, then inhale to the lungs if you are using an MTL draw, or inhale directly if your device is set for a restricted direct-to-lung style. Sharp, hard puffs overheat the coil, deliver an unnecessarily large amount of nicotine and can cause coughing. Short and light is usually better.

Do not add anything to the liquid. It is supplied ready to use, and mixing it with other e-liquids, flavour concentrates, nicotine shots or unflavoured bases changes the strength and the safety information on the label. If you want a different level of sourness, change your device settings, not the contents of the bottle.

Finally, keep your refilling habits tidy. Refill when the pod is about a third full, not when it is completely empty, since running a coil dry is the quickest way to burn it out. Wash your hands after handling liquid, as it can irritate skin, and wipe up any spills straight away. If liquid gets on your skin, rinse it off with soap and water; if it gets in your eyes, rinse with plenty of clean water and seek medical advice.

Troubleshooting common issues

Almost every problem people have with a new bottle comes down to the coil, the fill or the settings rather than the liquid itself. Work through the likely causes below before assuming something is wrong with the bottle.

• Weak or flat flavour: The coil is probably past its best. Change the coil, prime it properly and check you are not vaping at wattage far above its rating. Palate fatigue can also dull flavour after a long session on one profile; take a day on a different flavour or just water.
• Burnt or toasted taste: This is nearly always a dry hit from a coil that has not been primed or has been run on low liquid. Refill, rest the device and, if the taste persists after a few puffs, replace the coil.
• Gurgling or spitting: Excess condensation or a flooded coil. Blow gently back through the mouthpiece to clear the air channel, wipe it dry, and make sure you have not overfilled.
• Leaking from the pod: Common causes are overfilling, a loose coil seating, a cracked pod or a change in air pressure, such as on a flight. Refill to slightly below the line, push the coil in until it clicks and store the device upright.
• Harsh throat hit: Reduce the wattage, loosen the airflow or consider stepping down to 5mg if you find 10mg too strong.
• Too sour: Lower the wattage slightly. Heat softens tart notes, so a slightly warmer setting will round the profile out. Opening the airflow dilutes the flavour and can make it less acidic as well.
• Not enough nicotine satisfaction: Check that you are inhaling properly and not running your device at too low a power. If cravings persist after a few days, 20mg may suit you better.
• Device not firing: Check that the pod is seated, the battery is charged and the contacts are clean. A drop of liquid across the contacts can cause misfires; wipe them with a dry cotton bud.
• Liquid has darkened: A slight deepening in colour over time is normal for liquids containing nicotine and some flavourings, particularly if the bottle has been exposed to light or warmth. If it smells or tastes noticeably off, stop using it.

If you have tried these steps and the problem remains, check the batch number on the bottle and get in touch with your order details. Keep the bottle and take a clear photo of any damage or fault, which makes it much easier to resolve.

Value for money

Judging value in vaping means looking at cost per millilitre, how long the liquid lasts and the running costs of the kit that goes with it. A 10ml bottle of nic salt costs more per millilitre than a 100ml shortfill, but nic salts and shortfills are not interchangeable. Salts suit small pod devices and shortfills suit sub-ohm tanks, so the more useful comparison is with other products that serve the same type of user.

Compared with single-use vapes, which were the main alternative for many people before the ban, a refillable setup using bottled nic salt is typically cheaper per day of use. Using the rough figure of 300 puffs per millilitre, a 10ml bottle provides the liquid equivalent of around five 600-puff disposables. Add the cost of the pod kit itself, plus a replacement coil every week or two, and the total still tends to come out lower over a month than buying a single-use device every few days, and it generates considerably less electronic waste.

Some practical ways to get the most from each bottle:

• Match the coil and wattage to the liquid so you are not wasting juice through excess heat.
• Replace coils on time. A burnt coil wastes liquid and flavour.
• Buy multi-packs where offered, since the cost per bottle often falls with quantity.
• Choose a strength you will actually finish; leftover bottles of a strength that did not suit you are the most expensive kind.
• Store bottles correctly so liquid does not degrade before you reach the end of it.

Where the product is less strong on value is on the flavour side. Sour profiles are a niche taste, so if you are unsure, a single bottle is a sensible first purchase before you buy a multi-pack. Quality-wise, you are paying for a mainstream, mid-range nic salt with a clear, well-defined flavour rather than a premium or small-batch product. That is a fair deal for what it is, but you should not expect artisan complexity from it.

Check the current price on the product page. Offers, bundles and delivery thresholds change from week to week, and the figures you see at checkout are the ones that apply.

How it compares with similar options

A fair comparison starts with the category, because 10ml nic salt bottles compete with several different products, and each has trade-offs. This section deals with the main alternatives honestly rather than claiming this one beats everything.

Versus other 10ml nic salt ranges. Plenty of established UK brands sell 10ml nic salts at 10mg and 20mg, such as Elfliq, IVG Salt, Nasty Salt and Pod Salt, and many include an apple or sour apple option. In general the differences come down to sweetness level, how sharp the sour note is, and the VG/PG balance. Mix Lab Salts Sour Green Apple leans towards crisp and tart rather than sugary, so if you prefer a sweeter, juicier apple, a candy-style apple from another range may suit you better. If you want something with similar acidity, compare the labels and the reviews for the flavours, rather than assuming two sour apples taste alike.

Versus freebase shortfills. A 50ml or 100ml shortfill gives you far more liquid for the money, and it suits sub-ohm tanks and bigger vapour. The trade-offs are that you need to add nicotine shots yourself, the bottle is much larger to carry, and the liquid is too thick for most pod coils. For someone using a compact pod, a nic salt like this one is simpler.

Versus pre-filled pods. Closed pods are convenient and spill-free, but they are tied to one brand's flavours and sizes, and each pod is a consumable. Refillable pods with bottled salt cost less over time and let you change flavour freely, at the price of a bit more handling.

Versus single-use vapes. These are no longer sold in Great Britain, and they were always more wasteful. A refillable pod kit with a nic salt bottle gives a similar low-effort experience once you have set it up, with a replaceable coil, a rechargeable battery and the ability to choose from many flavours.

Versus 20mg versions of the same range. If you smoke heavily, you may find 10mg unsatisfying and end up using more liquid to reach the same effect, which cancels out the saving. If you smoke lightly, 20mg could feel too much. The 10mg strength is the one to start with if you are not sure, then adjust.

The honest summary is that this is a sensible, mid-range option for the right device and the right palate, rather than a standout in a crowded category. Its main points of difference are the tart finish and the straightforward 10mg strength, and whether those matter to you is a matter of personal preference.