Donut King Bar Series 100ml

Overview

The Donut King Bar Series 100ml by Donut King at 0mg. Free UK delivery over £20, same-day dispatch on weekday orders before 4pm.

Donut King Bar Series 100ml: a hundred millilitres for £4.99

Donut King Bar Series 100ml is a 0mg shortfill in the largest common bottle size, and at £4.99 it works out at just under 5p per millilitre before anything is added to it. That number is worth sitting with for a moment, because it is roughly a third of what the same volume costs in 10ml bottles even at multibuy pricing. Volume is the entire proposition of a 100ml shortfill, and this one prices itself accordingly.

As with every shortfill, the bottle contains no nicotine at all. The 0mg on the listing is not a strength option, it is the format. UK law restricts nicotine-containing e-liquid to 10ml bottles at a maximum of 20mg per millilitre, and a flavoured base with no nicotine in it is not caught by the bottle size rule. Manufacturers therefore make the flavoured part in bulk and leave the nicotine as a separate purchase for anyone who wants it. You can equally vape the bottle exactly as it arrives.

Donut King wears its identity in its name, and the brand sits squarely at the bakery and dessert end of the flavour map rather than pretending otherwise. The Bar Series label on top of that reads as a nod to the flavour vocabulary that disposable bars made familiar to a whole generation of UK vapers, brought across into a format you mix and refill instead of throw away. Whether that appeals is a matter of taste, but it tells you what neighbourhood you are in.

We stock two Donut King shortfills, both at the same price, and you can see both on the Donut King collection page. The wider shortfill e-liquid section puts them in context against everything else we carry in large format.

Two shots, 120ml, and the maths of the bigger bottle

A 100ml shortfill is designed around two nicotine shots rather than one, and the arithmetic lands neatly enough that it is clearly deliberate.

A nicotine shot is a 10ml unflavoured bottle sold separately, typically at 18mg or 20mg. Add two 18mg shots to 100ml of base and you have 120ml of finished liquid containing 360mg of nicotine in total, which divides out at exactly 3mg per millilitre. Use 20mg shots and the same volume comes to a little over 3.3mg per millilitre. Either way you land in the low strength band that suits open tank devices, which is the whole target of the format.

The scale is what changes with a 100ml bottle. Finishing it gives you 120ml of ready liquid, which for many people is a month or two of vaping in a single purchase. That is convenient, and it is where the per millilitre economics come from, but it also means you are committing to one flavour at a volume that leaves no room for second thoughts.

A 100ml shortfill is conventionally supplied in a bottle with headroom for those two shots, so nothing needs decanting if you mix the whole thing at once. If you want a stronger result than two shots deliver, this is not the format for it. Higher strengths are the province of prefilled 10ml bottles, and our e-liquid range carries both formats so you can compare directly rather than trying to force one to behave like the other.

If nicotine is not part of your plan at all, the bottle is already finished as supplied, and the nicotine-free e-liquid section collects everything else we stock at zero.

Mixing a 100ml in stages instead of all at once

Most instructions tell you to tip both shots in and shake. That works, but it is not always the smartest way to handle a bottle this size, and there is an alternative worth knowing about.

Mixing in stages means decanting part of the base into a smaller empty bottle, adding a proportional amount of shot to that, and leaving the remainder untouched at 0mg. Half a 100ml bottle takes one shot to reach the same 3mg result. The advantages are real:

• Shelf life. Nicotine is the ingredient most prone to oxidising over time. Base left unmixed keeps better than base with a shot already in it, which matters when a bottle is going to last you two months.
• Flexibility. If you decide the strength is not right, you have only committed half the bottle rather than all of it.
• Steeping control. You can leave one batch resting for a week while vaping the other, then compare. It is the only easy way to find out how much steeping a particular blend actually wants.

The costs are honest too. You need a clean empty bottle, you have to measure rather than tip, and it is more faff than most people want on a Tuesday evening. If you mix everything at once, the process is straightforward: both shots in, cap on tight, shake properly for a minute, rest for a few hours, shake again.

Whichever route you take, do not judge the flavour on the first draw after mixing. Freshly combined liquid frequently tastes flat, and bakery and dessert profiles in particular tend to pull together over several days in a cool dark cupboard. Mixing your next bottle while you are still on the current one removes the temptation to vape something before it is ready.

Getting the best from a bakery profile

Dessert flavours behave differently from fruit and menthol, and the settings that flatter one will often flatten the other.

Power and heat

Sweet, creamy and baked notes generally come alive with a bit more warmth behind them, which is why dessert liquids are so often associated with higher output setups. Run one too cool and it can read as vague and slightly sickly, with the sugar arriving but none of the depth behind it. Push it too hard and the sweetener starts to dominate and scorch. There is a window, and it is usually worth spending a session finding it rather than assuming your usual setting is right.

Airflow

A more open airflow spreads a rich flavour out and keeps it from becoming cloying. A tighter draw concentrates it. Dessert profiles tend to reward the more open end, which is another reason they suit tank devices rather than compact pods.

Palate fatigue

Rich flavours saturate faster than simple ones. If a bakery blend starts tasting of nothing much after a week, that is normal and it is your palate rather than the bottle. Alternating with something sharp resets it quickly.

Cleaning between flavours

Sweet residue lingers in a tank far more stubbornly than fruit does. Rinse the tank and let it dry fully before you switch to something delicate, or the next liquid will spend its first few millilitres tasting of doughnut.

If you are matching hardware to this style of liquid, the vape kits section covers the open tank devices that handle it, and the vape coils section holds the replacement elements they consume.

Living with a bottle this size

A 100ml bottle is a different physical object from a 10ml one, and a few practical things change with it.

Decant a working bottle. Keeping the full 100ml at home and carrying a small refill bottle in a bag is easier, cheaper to replace if lost, and far less messy if something gets squashed. Empty labelled bottles cost pennies.

Travel needs thought. Restrictions on liquid volumes in hand luggage vary between airports, and a full 100ml or 120ml bottle is exactly the size most likely to cause a conversation at security. Decanting a small amount into a compliant container before you fly avoids the issue entirely, and checking the rules for your specific airport before you travel is worth the two minutes.

Store the bulk properly. Cool, dark, sealed and out of reach of children and pets. A cupboard is right. A worktop next to a kettle is not, and heat is the fastest way to age a bottle you intend to keep for two months.

Cap it every time. Repeated exposure to air is what dulls a flavour over a long bottle life, and a 100ml bottle gets opened many more times than a small one.

Label anything you decant. If you split the bottle, write on the smaller one what is in it and whether nicotine has been added. Unlabelled liquid in a house is an avoidable problem.

None of this is demanding, but the difference between a well-kept 100ml bottle and a neglected one is very noticeable by the time you reach the bottom of it.

The two Donut King shortfills compared

We carry two shortfills under this brand, both 100ml and both £4.99, which makes the choice between them purely about which direction of dessert you are after rather than about value.

The Bar Series name points towards the flavour language of the disposable market, which tends to mean bright, forward and immediately recognisable. Donut King N Shake 100ml signals something different by its name, leaning towards the milkshake side of the dessert spectrum, which is generally a softer and creamier place to sit.

Buying both is the obvious move if you cannot decide, and there is a practical argument for it beyond curiosity. Two bottles at £4.99 comes to £9.98, and having two related but distinguishable profiles in rotation is far more sustainable than working through 120ml of a single dessert blend. Rich flavours tire a palate quickly, and the second bottle is the thing that stops the first one becoming a chore.

If you want a genuine reset rather than a variation, pair either of them with something from an entirely different family. A menthol or a sharp citrus does more to bring a dessert blend back to life than another dessert ever will.

Current multibuy and offer pricing across the whole liquid range sits in our vape deals section, which is the place to check before you decide how many bottles to put in a basket. Buying a rotation in one order is almost always cheaper than replacing single bottles as they run out, and it also has the useful side effect of clearing the free delivery threshold.

Buying from us

Authentic stock

Everything we list is genuine and arrives through legitimate UK distribution. With something you inhale, the compliance process behind a properly notified liquid is what makes it legal to sell in the first place, and there is no way to judge a bottle from the outside. The retailer is the accountable party, which is exactly why buying from an established UK shop rather than an anonymous listing is the sensible default.

Dispatch and delivery

We send orders the same working day when they reach us before 4pm. Orders arriving later, or over a weekend, go out on the next working day. UK delivery is free above £20. At £4.99 a bottle, four bottles clear that threshold with room to spare, which is why most regular customers buy their liquid in batches rather than one at a time.

Adults only

This is an 18+ site and we do not sell vaping products to anyone below that age, including zero nicotine shortfills. UK law restricts the category rather than the ingredient, so the rule applies to every item in our catalogue equally. Verification runs as part of checkout, and where an automated check cannot confirm your age we will request identification before your order is packed. There is no route around that process and we do not make exceptions to it.

Where this sits in the Donut King range

A single product tells you little; the shape of the range tells you a lot. We stock 2 Donut King products, running from £4.99 to £4.99. That makes it a small, specialist range rather than a catalogue brand.

The full lineup is on the Donut King page. Other Donut King products worth a look:

• Donut King N Shake 100ml at £4.99

Brand loyalty in vaping is mostly about knowing what to expect, which counts for a lot.

How it compares to the rest of the category

Judging a product in isolation is how people end up disappointed. We list 736 products in this category. At £4.99, this one sits in the middle of the market.

• Multibuy deals are where the price per unit drops hardest, and they can be mixed across flavours.
• Reduced lines carry 1,558 products if the budget is the deciding factor.
• Prefilled pods cost more per millilitre but remove the refilling entirely.

None of those is objectively right. They suit different routines and different budgets.

The running cost, worked out

Work out cost per week and product comparisons get much easier.

Without a published rating there is no honest per-puff maths to show, so we leave it out.

• No multibuy runs on this line, so the deals page is where the savings are.
• Baskets over £20.00 ship free in the UK, so building to that threshold beats paying postage twice.
• Nicotine strength changes consumption: many adults find a higher strength means reaching for the device less often.

Why the UK market looks like this

A lot of the format decisions here were made by law, not by marketing. UK rules cap nicotine at 20mg per ml, nicotine e-liquid bottles at 10ml, and prefilled pods and tanks at 2ml. That is why no retailer here sells a 50ml bottle of 20mg salt.

The single-use disposable ban reshaped the rest. Rechargeable kits with replaceable pods took their place, which is why a device now comes with a charging port and a pod you swap rather than a sealed unit you bin. The upshot is less waste and a lower running cost, if you stick with one system.

We only list compliant stock sourced through UK distributors. Age verification applies to every order without exception.

Looking after it, and what goes wrong

Most complaints about flavour come down to handling rather than the product.

• Prime before the first draw. Fill, then wait a few minutes so the wick soaks fully. A dry first pull is what burns a coil.
• Keep it cool and upright. Heat thins liquid and pushes it through seals, which is why a hot car is the usual cause of a leak.
• Muted flavour is often you, not it. Palate fatigue is common on a single flavour, and rotating to a second profile resets it.
• Store away from children and pets, and recycle spent hardware rather than binning it loose.

Do those four things and most of the usual problems never appear.

More from this category

There are no other flavours under this exact name, so look sideways instead.

• New In
• Nicotine Pouches
• Vape Pods
• Disposable Vapes

Buying this as a first purchase

New to this format? Three decisions cover almost everything.

1. Format. A bottle is the cheapest way to vape per millilitre, but you refill it yourself. Prefilled pods remove that job at a higher cost.
2. Strength. This comes in 0mg. Heavier former smokers usually start high and step down.
3. Flavour. Pick two from different families rather than committing to one.

Beyond that, it is down to taste rather than technique. The deals page is the cheapest way to try more than one at a time.

Browse related ranges

Where to go next if you want to compare before buying.

• New In (211 products)
• Nicotine Pouches (12 products)
• Vape Pods (1,412 products)
• Disposable Vapes (99 products)
• 20mg E-Liquids (582 products)
• Vape Deals (1,556 products)

Or stay with the brand: all Donut King products, 2 in total. Sticking to a brand you already know is the least risky way to try something different.

Delivery, returns and buying with confidence

The buying side is straightforward. Weekday orders placed before 4pm are dispatched the same day, and UK delivery is free once your basket reaches £20.00. Delivery choices, including tracked services, appear at checkout.

We cannot resell an opened consumable, so opened items are outside the returns policy. Faults and picking errors are resolved without argument. Sales are strictly 18+ and every order is age-verified before dispatch.

Nicotine is an addictive substance and these products are intended for adults who already smoke or vape.

Reading puff counts and pack sizes honestly

Numbers on vape packaging are marketing before they are measurement. This listing publishes no puff rating, and we will not invent one. That figure comes from laboratory testing with a consistent draw, not from someone using it on a cold morning at a bus stop. Your own total will differ, sometimes considerably.

There is a structural reason the maths looks odd. UK rules cap a prefilled pod or tank at 2ml, and nicotine e-liquid bottles at 10ml. A five-figure puff rating therefore describes what a system delivers across all the pods you will work through, not what sits inside one pod on the shelf. Any brand claiming otherwise is describing a product that could not legally be sold here.

It is useful side by side, useless in isolation. Comparing two products in the same class is fair. Budgeting your month on the strength of a rating is not. Cost per week, measured once you know your own pace, beats every figure on the box.

Nicotine strength, explained properly

More vapers give up on switching because of a bad strength choice than because of a bad flavour. This listing offers 0mg. UK law caps nicotine at 20mg per ml, so nothing sold legally here goes higher, and the honest question is how far below that ceiling you should sit.

The instinct is to go low, and it usually backfires. If a strength does not satisfy, you compensate by vaping more often, which costs more and rarely feels better. A heavier former smoker typically starts at the top of the range and steps down over weeks or months once the habit has settled. Someone who smoked lightly, or who has already been vaping a while, is usually comfortable in the middle.

The sensation itself is part of the decision. Higher strengths give a firmer hit at the back of the throat, which many people switching from cigarettes actively want, and which others find harsh. Nicotine salts are smoother than freebase at the same number, which is why bar-style liquids sit at 20mg without feeling like it. If you are unsure, buy one of each rather than committing to five of the wrong one. 10mg options and 20mg options are browsable separately.