Mod Mate by Nasty 50ML

Overview

The Mod Mate by Nasty 50ML by Mod at 0mg. Free UK delivery over £20, same-day dispatch on weekday orders before 4pm.

Mod Mate by Nasty 50ML Overview

Mod Mate by Nasty 50ML is a nicotine-free shortfill e-liquid from Nasty Juice, sold in a 50ml bottle and built for sub-ohm vaping on a refillable tank or mod kit. The name points at its audience: vapers running a box mod, a pod-mod or a sub-ohm tank who want a bigger bottle at a lower cost per millilitre than the 10ml nicotine bottles that UK rules limit retailers to selling.

A shortfill is supplied at 0mg nicotine with spare room left in the bottle. That headroom lets you add one or more 10ml nicotine shots, bought separately, to reach the strength you want. If you vape nicotine-free you simply leave the bottle as supplied. The format exists because UK regulations cap nicotine-containing e-liquid bottles at 10ml, while nicotine-free liquid can be sold in larger sizes.

Nasty Juice shortfills are normally mixed at a high-VG ratio, commonly 70% vegetable glycerine and 30% propylene glycol, which suits sub-ohm hardware and produces dense vapour. Always read the label on your bottle for the exact VG/PG split, batch number and ingredient list, because formulations can change between batches.

This product is a refill liquid, not a disposable device. It needs a compatible refillable tank, pod-mod or mod kit to be used, and nothing about it is sold with a battery or coil. If you are new to refillable vaping, the sections below explain the hardware it suits, how to mix and fill it, how to troubleshoot common problems and how it compares with similar 50ml shortfills sold in the UK.

On this page you will find:

• The practical specifications you need before buying
• What to expect from vapour and throat hit
• Guidance on nicotine strength and the UK 20mg limit
• Matching advice for batteries, coils and mesh tanks
• Who should and should not buy it, plus value and competitor comparisons

Everything here is written for UK adult vapers. You must be 18 or over to buy, and we ask for age confirmation at checkout.

Specifications at a Glance

Before looking at performance, it helps to pin down the numbers that matter for a shortfill. These are the working specifications for this product, with the caveat that the printed label on your bottle is always the final word.

• Product type: e-liquid shortfill, nicotine-free as supplied (0mg/ml)
• Brand: Nasty Juice, sold here as Mod Mate by Nasty
• Bottle capacity: 50ml of e-liquid, typically supplied in a larger plastic bottle so nicotine shots can be added
• Typical VG/PG ratio: 70VG/30PG, check the label for the batch you receive
• Nicotine as supplied: 0mg/ml
• Nicotine with one 10ml 18mg shot: approximately 3mg/ml in a 60ml total volume
• UK maximum strength: 20mg/ml (2%) for any nicotine e-liquid
• Best suited hardware: sub-ohm tanks and pod-mods using coils from about 0.15 to 0.6 ohm
• Typical power range: roughly 35W to 80W depending on the coil rating
• Vaping style: direct-to-lung (DTL) or restricted direct-to-lung (RDTL)
• Closure: child-resistant, tamper-evident cap with a narrow tip for filling tanks
• Age restriction: 18+ only

The most useful figure to keep in mind is the nicotine formula. Final strength equals the shot strength multiplied by the shot volume, divided by the total volume of liquid after mixing. A single 10ml shot at 18mg/ml added to 50ml of nicotine-free liquid gives 180mg of nicotine across 60ml, which is 3mg/ml. A 10ml shot at 20mg/ml gives 200mg across 60ml, or about 3.3mg/ml. A 10ml shot at 10mg/ml gives 100mg across 60ml, or about 1.7mg/ml.

Be aware that bottle fill levels vary between brands. Some shortfills hold 50ml of liquid inside a 60ml bottle, while others hold less than their stated size to leave mixing room. Check the millilitre figure on the label before you calculate, and shake the bottle thoroughly after adding any shots so the nicotine distributes evenly through the thick VG base.

Performance and Puff Delivery

An e-liquid does not have a puff count in the way a disposable does, so performance here is measured in how long a bottle lasts and how it behaves on your hardware. The practical question is how many millilitres you go through in a day and what that means for the 50ml you are buying.

Sub-ohm vapers using a 0.2 to 0.3 ohm mesh coil at 50W to 70W typically consume between 3ml and 6ml of liquid per day. At those rates, a 50ml bottle lasts around 8 to 16 days on its own, and a 60ml mixed bottle with a nicotine shot lasts roughly 10 to 20 days. Lighter users on a restricted-lung pod-mod at 25W to 35W may only use 1.5ml to 2.5ml a day, stretching the same bottle to three or four weeks. Heavy chain vapers on 80W builds can go through 8ml or more daily.

The 70VG base is the main driver of vapour production. High-VG liquids create thicker clouds and a smoother, softer throat sensation than 50/50 blends, but they are also more viscous, which has two consequences. First, the liquid wicks into cotton more slowly, so it needs a coil designed for thicker juice, such as a mesh coil with large wicking ports. Second, a coil that is run too hard for its wicking speed will give dry or burnt hits. Following the wattage range printed on your coil avoids both problems.

Expect the vapour to feel warm and full rather than sharp. At 3mg/ml the throat hit is gentle, which is why this strength is common among ex-smokers who have already moved to sub-ohm vaping. At 0mg you will get the flavour and vapour without any nicotine sensation at all.

Airflow matters as much as power. A fully open airflow ring gives cooler, airier draws and bigger clouds, while a half-closed ring concentrates flavour and warms the vapour. Try a medium setting first, and adjust in small steps over a day or two so you give your palate a fair chance to adapt.

Finally, remember that perceived performance depends on fresh coils. A new mesh coil usually delivers its best flavour for the first week or two of regular use. As the coil gradually gunks up with sugars from the liquid, flavour and vapour output fall, and replacing the coil restores them.

Flavour Profile

Nasty Juice has built its reputation on sweet-forward, layered profiles, and the Mod Mate line follows that general approach: a strong top note on the inhale, a rounder mid-palate and a lingering sweet finish on the exhale. The specific flavour name and tasting notes for this listing are shown in the product title and the description at the top of the page, so check there for the exact note descriptors rather than relying on a generic summary.

What you can say in general about a 70VG shortfill in this style is that the flavour is carried by the VG base rather than the PG. Because PG is the component that carries flavour sharply and delivers throat hit, a 70/30 blend tastes rounder and slightly softer than a 50/50 one. Flavour lovers often compensate by running the coil at a mid-range wattage and keeping airflow partly closed, which concentrates the taste.

Sweeteners and flavour concentrates in sweet profiles can sometimes dull the palate after a few hours of continuous use, a common effect often called vaper's tongue. If your favourite liquid suddenly seems flat, try one of these quick fixes before blaming the bottle:

• Switch to a different flavour category for a day or two, such as a menthol or tobacco profile
• Drink water and eat something plain, then try again
• Replace the coil, because a saturated coil is the most common cause of muted flavour
• Lower the power slightly to reduce heat-related flavour loss

Steeping can also change the way the liquid tastes. Shortfills are usually ready to vape straight from the bottle, but many users find that leaving a freshly mixed bottle for 24 to 48 hours in a cool, dark cupboard lets the nicotine and flavour blend together more evenly. This is optional and personal preference, not a requirement.

Keep an eye on how much you vary the strength. Adding a nicotine shot slightly dilutes the flavour concentration, because the shot itself is flavourless and takes up volume. A 50ml bottle in a 60ml total volume is about 17% less concentrated than the same liquid undiluted, which is why some vapers notice a mild reduction in flavour intensity after adding a shot. Many also report that it is barely perceptible once they have vaped through the first tankful.

If you are unsure whether the flavour suits you, a smaller 10ml or 50ml purchase of the same brand family before committing to larger quantities is a sensible way to test your preference.

Bottle Design and Build Quality

Shortfill bottles from Nasty Juice are generally made from soft, squeezable plastic with a narrow tip nozzle that fits the fill ports on most sub-ohm tanks and pod-mods. The material is chosen for two reasons: it allows you to squeeze the bottle to control the flow, and it is cheap enough to recycle without much waste.

The cap is child-resistant and tamper-evident, as required for e-liquid sold in the UK. When you first open the bottle, you will need to press down while turning the cap, and you should see a security ring that breaks away on the first use. If that ring is already broken on delivery, contact customer service before using the product.

A few practical design points are worth knowing:

• Tip diameter: narrow tips are good for small fill ports on pod-mods, but can be slow with very thick liquid; a gentle squeeze helps
• Extra headroom: the unfilled space inside the bottle is deliberate and is where nicotine shots go
• Label information: the label should show the nicotine content, ingredients, batch number, volume, hazard symbols, and an advice box; read it before use
• Opacity: most bottles are semi-opaque to reduce light exposure, but you should still store them in a dark place

Build quality is largely a question of consistency. Look for a tight cap seal, a clean print on the label and a tip that is free from burrs. If you notice liquid on the outside of a sealed bottle, set it aside, wash your hands and contact customer service with a photo.

Storage affects the life of a bottle just as much as the plastic does. Heat, sunlight and open air all accelerate degradation, which can darken the liquid and change the taste. Keep your bottle upright, with the cap fully tightened, in a cool cupboard away from children and pets. Nicotine liquid is toxic if swallowed or absorbed through the skin in large quantities, so never decant it into drinks bottles or unlabelled containers.

Once the bottle is empty, rinse it with warm water and recycle the plastic according to your local council rules. Because bottle plastics vary, check the recycling symbol on the base. If your local kerbside collection does not accept small plastic containers, many supermarkets offer plastic drop-off points. Devices, batteries and coils are separate and should go to a proper electrical waste point instead, as covered in the battery section below.

Battery and Charging: What Your Device Needs

There is no battery in an e-liquid, so the power side of your setup comes from the device you pair it with. Getting this part right affects both safety and vapour quality, so it is worth treating it as part of the purchase decision.

For sub-ohm mod kits, the most common power source is a removable 18650 or 21700 lithium-ion cell. A good 18650 is typically rated between 2500mAh and 3500mAh, while a 21700 usually sits in the 3500mAh to 5000mAh range. Capacity tells you how long the cell lasts between charges, while the continuous discharge rating, in amps, tells you how hard it can safely be pushed. As a rough guide, current draw in amps equals power in watts divided by battery voltage. At 60W from a cell at about 3.7V, the draw is around 16A, and at 80W it is closer to 22A. Pick a battery rated comfortably above those figures.

Built-in battery pod-mods and slim kits generally carry between 1000mAh and 3000mAh and charge through a USB-C port. Typical charge currents run from 1A to 2A, giving a full charge in 45 minutes to two hours depending on capacity. For daily sub-ohm vapers, a 2000mAh built-in battery will often last half a day to a full day at moderate power.

Charging good practice includes:

• Use the cable that came with your device, or a reputable USB-C lead and charger
• Do not leave a device charging unattended overnight on a soft surface
• Never use damaged, wrapped or torn batteries, and do not carry loose cells in a pocket with keys or coins
• Use a dedicated external charger for removable cells and store them in a plastic case

When a battery or device reaches the end of its life, it should not go in household bins. Lithium-ion cells can cause fires in waste collection vehicles. Instead, take them to a household waste recycling centre or hand them in at a retailer with a vape or battery take-back scheme. Many UK shops that sell vape products must offer a free return point, and the national Recycle Your Electricals website lists drop-off locations by postcode. Hand over empty coils and spent pods in the same way if the scheme accepts them.

Since the single-use disposable ban came into force in Great Britain, reusable kits with recycled batteries have become the standard route for most adult vapers, which is another reason that refillable shortfills such as this one continue to be popular.

Coil and Mesh Technology: Matching Your Hardware

Because Mod Mate by Nasty is a thick, VG-heavy liquid, the coil you pair it with is probably the single biggest influence on how good it tastes. The wrong coil will give weak flavour and dry hits, while a well-matched one makes the liquid taste as intended.

The coil types you are likely to meet include:

• Mesh coils (0.15 to 0.4 ohm): a flat sheet of woven metal with a large surface area, typically wicked with organic cotton. Mesh heats evenly, ramps up quickly and handles thick VG liquid well. These are the standard choice for direct-to-lung vaping on 70VG shortfills.
• Round wire sub-ohm coils (0.2 to 0.5 ohm): traditional Kanthal or stainless steel wire in a cylindrical coil. They can give slightly more focused flavour but are less tolerant of very thick liquid.
• Higher-resistance mesh coils (0.6 to 0.8 ohm): found in many pod-mods, these work well for restricted direct-to-lung vaping at lower wattages and use less liquid and power.
• Mouth-to-lung coils (1.0 ohm and above): generally not suited to 70VG because the wicking holes are small and thick liquid may not feed quickly enough.

Coil resistance and power are linked by Ohm's law: power in watts equals voltage squared divided by resistance. A 0.2 ohm coil on a regulated mod at 3.7V works out at around 68W, which is the sort of wattage mesh coils of that resistance are designed for. Always follow the range printed on the coil head, because exceeding it dries out the wick and shortens coil life.

Priming is essential. Before you power up, drip several drops of liquid directly into the wicking holes and fill the tank at least halfway. Wait 5 to 10 minutes for the cotton to saturate, then start with the power set at the low end of the recommended range. Skipping this step is the most common reason for a burnt first hit.

Sugars and sweeteners in dessert and candy-style profiles build up on coils faster than in tobacco or menthol liquids. Expect a mesh coil to last about one to two weeks for a daily vaper, and replace it when flavour drops or you notice a burnt edge. Spent coils contain metal and cotton and are best handled via an electrical or vape recycling drop-off.

Compatibility is generally simple: if your tank accepts 70VG liquid, this bottle will work. Check your device's manual for any VG limits, as some pod systems advise against anything above 50VG.

Nicotine Strength Guidance and UK Limits

In the UK, nicotine-containing e-liquids and refill pods are capped at 20mg/ml (2%), and bottles containing nicotine are limited to 10ml. This is the same ceiling that applied to disposable vapes before single-use disposables were banned in June 2025, and it is why high-strength nicotine salts commonly appear as 10mg and 20mg options. Mod Mate by Nasty 50ML is supplied at 0mg, so the nicotine content is entirely down to what you add.

Shortfill strength is a balance between your smoking history, your device and how much you vape. Here is a practical starting point for 70VG sub-ohm use:

• 0mg: for vapers who have fully stopped nicotine or want flavour only
• 1.5mg to 3mg: light to moderate vapers, or former smokers of fewer than ten cigarettes a day who vape heavily and at high wattage
• 3mg to 6mg: heavier former smokers on sub-ohm kits; this needs two or more shots, so check how much room your bottle has
• Nic salts above 10mg: better matched to pod kits and restricted draws than to open sub-ohm clouds

Higher power and bigger clouds deliver more nicotine per puff, which is why sub-ohm users go lower on strength than pod users. A good rule is to start at the low end, because it is easier to add a shot later than it is to dilute a bottle that is too strong. Signs that your strength is too high include dizziness, nausea, a racing heart, headaches and a harsh throat hit. If that happens, stop vaping, drink water and reduce the strength next time.

Nic shots come in two main types. Freebase shots, usually 18mg or 20mg, are the traditional choice and give a noticeable throat hit. Nicotine salt shots feel smoother at the same strength and are absorbed slightly faster, which some ex-smokers find more satisfying. Both can be mixed into a 70VG shortfill, but salts are a better fit at lower wattages, while freebase suits heavier clouds.

Nicotine is addictive. If you do not currently smoke or vape, there is no health reason to start, and this product is intended only for adults who are replacing tobacco or already vape. If you are pregnant, have a heart condition or take regular medication, speak to your GP or local stop smoking service before using nicotine products. Vaping is widely regarded as less harmful than smoking, but it is not risk free.

Who Mod Mate by Nasty 50ML Is For

The shortfill format suits a particular type of vaper, and it is just as useful to know when it is the wrong choice as when it is the right one.

It is a good fit if you:

• Already own or plan to buy a sub-ohm tank, mod kit or a pod-mod with a 0.4 ohm or lower mesh coil
• Prefer bigger vapour and a softer throat hit to a tight, cigarette-like draw
• Want to keep the cost per millilitre down by buying larger bottles and mixing your own strength
• Enjoy sweet, layered flavours rather than purely tobacco or menthol profiles
• Vape at home or at work where a refillable tank is practical
• Want the flexibility of 0mg, 3mg or 6mg from a single bottle

You may want to look elsewhere if you:

• Are a heavy smoker moving off cigarettes for the first time and need a higher nicotine strength; a 10mg or 20mg nic salt pod kit is usually easier to get started with
• Prefer a small, pocket-sized device with tight, mouth-to-lung draws
• Do not want to measure and mix nicotine shots or handle liquid
• Have a device that restricts VG, since 70VG may clog tight wicking systems
• Do not currently smoke or vape, in which case you should not start

It is also worth considering travel. A 60ml bottle takes up considerably more space than a sealed pod, and UK airlines treat it as a liquid in hand luggage, so it must fit within the standard liquids allowance and be placed in a clear bag. If you commute and want convenience, a pod kit with a few 10ml nic salt bottles is generally easier to carry.

For parents and guardians: e-liquids are toxic if swallowed and look like fruit drinks to young children. Keep bottles, shots and empty containers out of reach, and phone NHS 111 or 999 immediately if anyone swallows liquid or gets it in their eyes.

We sell only to customers aged 18 or over. If you are buying for someone else who is under 18, that is an offence, and we will refuse or cancel any order we think has been placed for that purpose.

How to Use: Mixing, Filling and Vaping

Getting the preparation right takes a few minutes and avoids most of the common problems. Follow these steps the first time you open a bottle.

• Step 1, wash your hands and clear a flat surface. Nicotine can irritate skin, so work over a tray or paper towel in case of spills.
• Step 2, shake the bottle. Give the nicotine-free liquid a good shake to mix the flavour concentrate through the VG.
• Step 3, open the cap. Press down and twist the child-resistant cap, then remove the tip if your bottle has a separate insert.
• Step 4, add your nicotine shot if you want one. Squeeze the full contents of one 10ml shot into the bottle, replace the tip and cap and tighten firmly.
• Step 5, shake for 30 seconds. Flip the bottle upside down and back several times so the shot is evenly mixed. Leave it for a few hours, ideally 24, if you want a more rounded taste.
• Step 6, fill the tank. Remove or slide away the top cap or fill port, tilt the tank and add liquid to the inside of the tube, away from the central air tube. Do not fill above the maximum line.
• Step 7, prime the coil. Drip a few drops into the coil's wicking holes and wait 5 to 10 minutes for the cotton to saturate.
• Step 8, set the power. Start at the low end of the coil's range, then raise by 2W to 3W at a time until the flavour and warmth feel right.
• Step 9, vape slowly. Take a smooth draw lasting three to four seconds for direct-to-lung use, then pause for about 20 seconds between puffs.

A few extra habits help day to day. Top up the tank when it is a third full rather than waiting until it is empty, because running a coil on a dry wick burns the cotton. Wipe the tank threads before reassembling, and fit the drip tip and base firmly to prevent leaks. Shake the bottle before each refill if you added a nicotine shot, because VG can settle.

When you finish, wipe the bottle tip and cap, close it tightly and store it upright in a cool, dark place. Do not mix liquids from different brands into one bottle, and never add more than the number of nicotine shots your bottle has room for, because overfilling can cause leaks and an unpredictable strength.

Troubleshooting Common Problems

Almost every issue with a shortfill comes from the device, the coil or the mixing rather than the liquid itself. Here is how to work through the usual suspects.

• Burnt or dry hit: the coil is not fully saturated or the power is too high. Prime properly, make sure the tank is more than a third full, lower the wattage and take slower, shorter puffs. If the taste remains burnt after a refill, the coil is likely spent and needs replacing.
• Weak or muted flavour: a gunked coil is the most common cause. Replace it. If that does not help, take a break from the flavour for a day to reset your palate, and check the power is within the coil's range.
• Gurgling and spitting: this means too much liquid is reaching the coil. Reduce airflow restriction, check the fill level and wipe condensation from the drip tip. A thick 70VG liquid in a high-airflow tank can also cause popping if the cotton is oversaturated.
• Leaking from the tank: check that the base is tightened fully, the O-rings are seated and undamaged, and the tank is not overfilled. Store the device upright overnight.
• Leaking from the bottle: the cap or tip may be loose, or the bottle may have been squeezed in a bag. Wipe it and store it upright.
• Nicotine feels too weak or too strong: check your shot arithmetic using the formula in the specifications section, make sure the shot has been shaken thoroughly through the liquid, and adjust the next bottle accordingly.
• Harsh throat hit: reduce the nicotine strength, lower the power or open the airflow.
• Liquid has darkened: a slight darkening over time is normal for sweet liquids and nicotine, but a strong chemical smell, odd colour or separation that does not mix on shaking means the bottle should not be used.
• Device will not fire: check the battery charge, clean the coil connection with a dry cloth and confirm the coil is screwed in properly.

If you suspect a device battery has swelled, heated up while charging, or been damaged, stop using it at once, keep it away from flammable material and take it to a recycling or electrical waste drop-off point. Never put a damaged lithium cell in household bins.

For issues with the liquid itself, such as a missing seal, a wrong strength, or a bottle that arrived leaking, keep the packaging and contact our customer service team with photographs. We can only help with problems that are reported promptly, so please do not wait.

Value for Money and Competitor Comparisons

Value in the shortfill category is a combination of price per millilitre, flavour consistency and how long a bottle lasts. Branded 50ml shortfills in the UK commonly sit in a mid-market range of about £8 to £15, and a 10ml nicotine shot typically adds another £1 to £1.50. Check the live price on this page, because promotions and multi-buy offers change. For a moderate sub-ohm vaper using around 4ml a day, a mixed 60ml bottle works out at somewhere between 15p and 25p per millilitre including the shot, and lasts about two weeks, which compares favourably with the running costs of cigarettes or repeatedly buying 10ml nic salt bottles.

Here is how this style of product tends to compare with similar 50ml shortfills, based on broad market positioning and not on a claim that any one brand is better:

• Doozy Vape Co: also sweet-led and 70VG, often with a heavier candy and fruit emphasis. Comparable pricing, with a slightly larger flavour range in some categories.
• Dinner Lady: known for dessert and fruit-and-ice profiles. Typically a little more expensive, with strong brand recognition and consistent batches.
• IVG: a very wide range with frequent promotions, and often cheaper at the entry level. Flavours are generally more straightforward and less layered.
• Vampire Vape: a long-standing UK brand with many tobacco and dessert profiles. Comparable quality, with some lines sold in 50/50 as well as 70/30 ratios.
• Chuffed and Ohm Boy: candy- and cereal-influenced profiles aimed at fans of sweet flavours, again broadly in the same price band.

The honest summary is that the differences between reputable UK shortfills are smaller than the marketing suggests. What tends to matter most is which flavour you personally enjoy, how well it matches your coil, and whether you can buy it at a good price. If you are comparing, buy a single bottle of each rather than stocking up on a bundle, and keep notes on how long each lasts.

Consider also the total cost of ownership. Coils cost around £8 to £15 for a pack of five, and a coil often lasts one to two weeks with a sweet liquid. A full month of moderate sub-ohm vaping therefore costs roughly the liquid plus one or two coils. In practice that is generally cheaper than disposables ever were, and it produces far less waste, particularly if you recycle the bottle, coils and batteries at a proper drop-off point.

If you want to save money, buy in multi-packs when the same flavour is offered at a discount, choose 0mg bottles with your own shots rather than pre-mixed small bottles, and look after your coils with careful priming and sensible wattage.