Helped me cut down from fags
Really pleased with the order overall. Everything arrived as expected, well packed, fast dispatch.
CaliypsoThe Green Wave Caliypso 100ml Shortfill E-Liquid by Caliypso in Green Wave at 0mg. Free UK delivery over £20, same-day dispatch on weekday orders before 4pm.
Caliypso 100ml Shortfill E-Liquid Green Wave is a nicotine-free vape liquid sold in a large 100ml bottle for £7.99. It is one flavour in the Caliypso range, a family of 37 products that all share the same bottle size, the same 0mg strength and the same price. That uniformity is useful, because it means the only real decision when you pick a bottle is the flavour. Green Wave is the green member of the Wave group, which also includes colours such as Blue, Red, Yellow and Cold.
The first thing to grasp is what the product is not. It is not a vape, a kit or a pod. There is no battery, no coil and no mouthpiece in the box. You get liquid, and you pour it into a refillable device that you already own or plan to buy. People who enjoy topping up their own tank or pod usually like this format for two reasons: the bottle lasts a long time, and the cost per millilitre is low compared with sealed pods.
The second thing is that the 0mg label is a starting point, not a ceiling. Because this is a shortfill e-liquid, the bottle has been left with empty headroom so that you can add nicotine shots if you want them. Leave the shots out and you have a nicotine-free liquid. Add one or more and you have a mild-strength mix that you control. That flexibility is the whole point of the shortfill format, and a later section shows the arithmetic.
It is worth saying plainly who this page is for. If you have never used a refillable device, this bottle is probably your second purchase, not your first. If you already run a pod system or a small tank, it is a straightforward way to buy a lot of liquid in one go. And if you only want something you can open and use immediately, a prefilled device will serve you better, which we cover in the section on who should look elsewhere.
Everything below is written to help you decide with confidence. Vaping products are for adults only, and nothing here replaces the label printed on the bottle you receive.
Pick up a shortfill and the first surprise is the empty space. A 100ml bottle that is not full to the brim can look like short measure, yet the gap is deliberate, and it is the feature that makes the product both legal and useful.
The reasoning comes from UK rules. Nicotine-containing e-liquid may only be sold in bottles of up to 10ml, and refillable tanks and pods are capped at 2ml. Liquid with no nicotine in it is treated differently, so it can be sold in much larger containers. Brands and retailers use that freedom to sell a big bottle of flavoured, nicotine-free liquid, filled to a stated volume that leaves room at the top. If you want nicotine, you buy separate 10ml shots and tip them in. The bottle then holds a finished mix at close to full capacity.
That is why Green Wave arrives at 0mg. There is nothing to mix if you vape nicotine-free, and the headroom simply goes unused. Plenty of people buy shortfills for exactly that reason, and a bottle this size can keep a nicotine-free vaper going for a long stretch.
A few terms are worth getting straight, because they trip up newcomers:
Check the label on your bottle for the exact liquid volume and the number of shots it is designed to take. Do not assume every 100ml bottle behaves the same way, because fill levels differ between brands and sometimes between lines from the same brand. If you only want a zero-strength option, our nicotine-free e-liquids collection lists the full set of bottles with no nicotine, and Green Wave is one of many.
Here is the awkward but honest part. The listing for this bottle gives us the name, Green Wave, and no tasting notes. Rather than guess and risk misleading you, we think it is better to explain how to interpret the name and then point you to the label for the details.
Caliypso names many of its liquids by colour and by a water theme. The same colour words run across the Wave, Surf and Ocean Lemonade groups, with Blue, Red, Black, Orange, Purple and others turning up in each. Across e-liquid generally, a colour often hints at a fruit family rather than a single fruit. Green can point towards apple, lime, melon, kiwi or a sour sweet profile, and sometimes mint, but that is a convention across the industry and not a statement about this specific bottle. Treat it as a pointer for your expectations and nothing more.
What can be said with more confidence is how this sort of liquid tends to behave in use. Sweet, fruit-led liquids usually taste brighter at lower power and a touch richer as you turn the device up. The first few puffs after a fresh fill are often the most noticeable, because the cotton is full of unvaped liquid. Over the course of a tank, a flavour that was vivid on day one can seem to flatten slightly as the coil ages, which is a coil issue and not a liquid one.
Temperature changes the picture too. Warm vapour tends to carry sweetness, while cooler vapour lets sharper notes come through. If a flavour seems too sugary, a small drop in power is the first thing to try. If it seems thin, a small rise often fills it out.
A sensible approach is to buy one bottle, use it properly for a few days across different settings, and judge it then. Because every Caliypso bottle costs the same, you lose nothing by trying a flavour and switching to another next time. Pairing the bottle with a fresh coil helps, since an old coil can make any liquid taste muted.
When the parcel arrives, read the label on the bottle itself. That is where any flavour description, ingredient list and liquid ratio will be printed, and we would rather you rely on it than on a guess from us.
Thirty-seven products sounds like a lot until you see how the range is organised. Reading the product names, the Caliypso line breaks into a few families, and knowing which family Green Wave belongs to makes browsing quicker.
The Wave group is the one this bottle sits in. At the time of writing it includes ten colours: Black, Blue, Cold, Green, Orange, Pink, Purple, Rainbow, Red and Yellow. The Surf group is slightly smaller, with eight names including Black Surf, Blue Surf and Green Surf. The Ocean Lemonade group is about the same size as Wave, and then there is a set of single-name lemonade flavours, such as Original Lemonade, Strawberry Lemonade and Pineapple Lemonade. One plain Caliypso 100ml bottle without a flavour name rounds out the line.
What does that mean for you? Mainly that if you like Green Wave and want some variety, there are sensible neighbours to try:
We cannot promise that two bottles sharing a colour taste alike, and we would not claim it. The group names suggest a family resemblance in how the liquids are styled, but the label on each bottle is the only reliable guide to what is inside.
All of them share the 100ml size, the 0mg strength and the £7.99 price, so you can mix and match without worrying that one flavour costs more than another. A basket of three comes to £23.97, which also clears the free delivery threshold, so a multi-flavour order is a natural way to explore. Because the pricing never shifts between flavours, choosing a second or third bottle is a pure matter of taste rather than budget, and that makes it easy to rotate flavours across a month and avoid getting bored of any single one.
Start with what is confirmed. The price is £7.99, the bottle size is 100ml and the strength is 0mg. Divide the price by the bottle size and you get 7.99p per millilitre on the headline figure.
That headline figure flatters the product a little, because a shortfill is not filled to the top. Your label states the real volume of liquid. As an example only, if a bottle held 70ml of liquid, £7.99 divided by 70 comes to about 11.4p per millilitre. If it held 60ml, the figure would be about 13.3p. Run the same sum with the number printed on your own bottle. The point is that the true cost sits somewhere above 8p, which is still modest next to many sealed products.
For contrast, the site's 5 for £10 multibuy on 10ml nicotine salt bottles works out at 20p per millilitre. Those bottles are designed for pod devices and for convenience, so it is not a criticism. It simply shows why people who vape often tend to drift towards shortfills over time.
It helps to translate millilitres into days. A small refillable pod holds up to 2ml, and a light user might fill it once a day. Someone on a larger tank may use considerably more. Taking a rough, illustrative 3ml a day, 60ml of liquid lasts around twenty days and 70ml around twenty-three. Your habits and your device will change that, sometimes by a lot, so treat it as a planning aid rather than a promise.
A quick summary of the figures:
One more number is worth knowing. Because nicotine shots are an extra purchase, a mixed bottle costs a little more than the £7.99 sticker price suggests. If you add shots, include their cost when you compare with other options so that you are measuring like with like.
Nicotine is entirely optional with this bottle, and if you do not currently use it there is no reason to start. For those who do want it, the arithmetic is simple once you see it set out.
The strength of a finished mix equals the total nicotine you add, divided by the total volume of liquid. A typical shot is 10ml at 18mg per millilitre, which carries 180mg of nicotine. Check the strength printed on the shot you actually buy, because that figure drives everything else.
To show how it works, take an imaginary bottle holding 70ml of liquid and add shots of 18mg:
Those figures are illustrations. Your label says how much liquid the bottle contains and how many shots it is designed to hold, so use those numbers for your own sum. Never try to squeeze in more shots than the headroom allows, because an overfull bottle is hard to shake properly and tends to leak.
Which strength should you pick? There is no universal answer, and we will not pretend there is. Lower figures are usually chosen by people who vape often on a larger tank and take long, generous draws, since a lot of vapour carries a lot of nicotine. Higher figures tend to suit small pod devices with tighter airflow. Shots made for shortfill bottles are commonly freebase nicotine, which many people find feels sharper in the throat as the strength rises, so some prefer a gentler mix.
If you want a firmer hit from a small pod and find a shortfill mix too thin, a ready-made option may suit you better. Our nicotine salt e-liquids are formulated for pod-style devices and come already mixed in 10ml bottles. UK law caps nicotine in e-liquid at 20mg per millilitre, which is far above anything a shortfill mix will reach.
A tidy first fill saves you leaks, spilled liquid and a disappointing first impression. The process takes about five minutes, plus a short rest if you have added shots.
Work in this order:
When you take the first puffs, start with the device on a low setting and work upwards. If your kit has adjustable power, this lets you find the point where the flavour is clearest without the vapour turning hot.
Keep a few practical items close by: a paper towel for drips, a marker or sticky label to note the date and strength on a mixed bottle, and a clear surface to work on. Wipe up any spills straight away and wash your hands afterwards. If you share a home with children or pets, put shots and bottles away as soon as you have finished.
For anything specific to your hardware, the manual that came with your kit has the final word on how its fill port, airflow and coil priming should work.
A 100ml bottle only earns its place if you have something to pour it into. The device matters more than most people expect, so it is worth matching the two properly.
Refillable hardware falls into a few groups. The simplest for newcomers is a refillable pod kit, where a slim battery section holds a small pod that you fill from the top. Pod systems are compact and easy to live with, and with a thinner liquid they make neat everyday companions. If you already own a compatible battery, you can pick up spare refillable vape pods separately.
Next come larger kits with a tank and adjustable power. These suit people who want bigger clouds and more control, and they accept coils in a wider range of resistances. In either case, remember that the coil is a consumable part. Sweet, fruity liquids can leave residue on the cotton, so a fresh replacement coil every couple of weeks, or sooner if the taste dulls, keeps the flavour clean.
Before you buy hardware for this bottle, ask yourself:
The second question deserves emphasis. Closed pod systems and prefilled pods are built to be used and swapped, not opened and refilled, and trying to refill them tends to cause leaks and poor performance. This bottle will not work in them. Equally, a rechargeable big-puff device with a fixed internal liquid supply is not something you top up with a shortfill.
As a rule, thinner, more balanced liquids move easily into small pods, whereas thicker, high-VG liquids work better in open tanks with generous airflow. The listing does not state a ratio for Green Wave, so read the label and match it to your hardware.
Not every vaper needs a bottle like this, and it is better to say so plainly. Here is who gets the most from it, and who might be happier elsewhere.
Green Wave suits you if you already use a refillable pod or tank and want a large, low-cost supply of liquid. It suits you if you prefer nicotine-free vaping, or if you like to control your own strength by adding shots. It also suits people who enjoy fruit-led flavours and are happy to try a colour-coded name and judge the taste for themselves. A whole family of flavours at one flat price makes sampling cheap.
It is the wrong choice if you want something you can open and use within a minute with no preparation. For that, look at a big-puff vape kit or a prefilled pod device, which come ready to go. It is also not ideal if you dislike filling, wiping and priming, because a refillable setup asks for a small routine.
What works in its favour
What counts against it
If you are weighing a refillable setup against a ready-made one, think about how much time you want to spend on upkeep. Some adults enjoy the ritual of filling and tuning. Others find it a chore and would rather have a sealed device. Neither view is wrong, and the right answer depends on how you like to spend your time.
An opened bottle is a small, sensitive thing. Light, heat and air all change how e-liquid tastes over time, and a few habits keep Green Wave tasting the way it should.
Store the bottle upright with the cap pushed firmly down. A cool, dark cupboard or drawer is ideal. Avoid windowsills, car glove boxes, radiators and anywhere that swings between hot and cold, since heat speeds up changes in colour and flavour. Darkening of the liquid is normal with age, particularly once nicotine has been added, and it does not always mean the bottle has spoiled. A change in smell or taste is a better guide than colour.
Sweet liquids attract dust and a sticky film around the nozzle, so wipe the tip after each fill. Never pour used liquid from a tank back into the bottle, because it carries traces of cotton and residue.
A few simple habits help:
How long will a bottle last? The label carries a best-before date, and that is the figure to trust. Once opened, the flavour gradually softens, and a bottle that has been open for a long time may taste duller than a fresh one. If a liquid smells off, tastes harsh or looks cloudy, replace it rather than persevere.
If you buy several flavours at once, keep each with its own bottle and cap. Swapping caps between bottles transfers flavour and can leave you with a muddled taste. A small labelled tray or box helps you find the right bottle quickly, and it keeps your supply tidy as you work through a range.
Most problems with refillable vaping are small, fixable and nothing to do with the liquid itself. Here are the usual culprits and what to try.
The flavour seems flat or muted. The most common reason is an old coil. Cotton and metal pick up residue from sweet liquids, so a coil that tasted lovely a fortnight ago can taste dull today. Swap in a new one and prime it. If that does not help, lower the power slightly, because too much heat flattens fruit flavours. Another cause is what some vapers call vaper's tongue, where repeated exposure to one sweet flavour dulls your sense of it for a while. Switching flavours for a day, or drinking some water, can reset it.
The hit tastes burnt or dry. This usually means the cotton is not saturated. Check the liquid level, give a freshly fitted coil enough time to soak, and take slower draws. Chain vaping can outpace the wick, so leave a few seconds between puffs. Also check that the airflow is not blocked.
The device leaks. Look first at the fill level. An overfilled tank pushes liquid into the airflow channels. Make sure the pod or tank is seated properly and that any silicone seals are in place. Changes in air pressure, such as on a flight, can also push liquid out, so carry the device empty or nearly dry if you can.
It gurgles or spits. Condensation in the airflow path is the usual reason. Wipe the mouthpiece and the base, and tilt the device to clear any pooled liquid.
The mixed bottle looks uneven. If you added shots, give it a decent shake and let it rest. Slight separation in the first hours is not unusual.
If you work through these and a problem persists, check the device manual or contact the manufacturer, since a cracked tank or a worn seal is a hardware fault and not a liquid fault. Keeping a spare coil and a spare pod to hand means a small problem never leaves you without a working setup.
Ordering a bottle like this is straightforward, but a few facts about delivery, returns and age checks will save you time.
Delivery works on a simple threshold. Standard delivery is free on orders over £20 and normally takes two to three working days. Below £20 it costs £2.99. If you need it sooner, next-day delivery costs £4.99 when you order before 4pm, Monday to Friday. Our delivery and returns page has the current details, so check it if you are working to a deadline. A single Green Wave bottle at £7.99 falls under the free threshold, while three bottles at £23.97 clear it. Orders placed before 4pm are normally dispatched the same working day, and every bottle is sold as genuine stock.
Returns need a little care. For hygiene and safety reasons we cannot accept returns on opened e-liquids. Faulty items can be returned within 30 days for a replacement or refund, so if something arrives damaged, get in touch quickly and keep the packaging. It is sensible to check the flavour name on the label against your order before you open the bottle.
Age verification is a legal requirement, not a formality. It is against the law in the UK to sell vaping products to anyone under 18, and the checkout is age-verified. You may be asked to confirm your age, and our age verification page explains what to expect. Accurate details at checkout are the simplest way to avoid delays.
A short checklist before you buy:
If you have a question about stock, a delivery or a problem with an order, you can contact us, and quoting your order number helps us answer faster. The price and availability at the top of this page are the live figures.
| Brand | Caliypso |
|---|---|
| Product type | E-Liquid |
| Nicotine strength | 0mg |
| Available flavours | 1 (Green Wave) |
| Price | £7.99 |
| Availability | In stock — same-day dispatch |
| Compliance | UK TPD-compliant, MHRA-registered |
Caliypso 100ml shortfills focus on lemonade and wave-style flavour combinations — refreshing, often summer-themed builds.
No. It is supplied at 0mg, so the liquid itself contains no nicotine. The bottle has spare space so that you can add nicotine shots if you choose, but shots are sold separately and are entirely optional. If you use the liquid without them, it stays nicotine-free. Nicotine is an addictive substance, so if you do not currently use it there is no need to add any. Check the label on your bottle for the strength and ingredient details.
The bottle is a 100ml container, but a shortfill is deliberately not filled to the top, so the liquid volume is lower. The exact amount is printed on the label, together with the number of nicotine shots the headroom can take. We do not state a figure here because it is best read directly from the bottle you receive. For a cost check, divide £7.99 by the liquid volume on your label to get the true price per millilitre.
The label says how many 10ml shots the headroom can hold, so follow that limit. As an illustration, if a bottle held 70ml of liquid and you added three 10ml shots of 18mg, the finished strength would be about 5.4mg per millilitre. Two shots would give 4mg and one shot about 2.25mg. After adding shots, shake the bottle well and leave it to rest for a few hours so the mix settles. Use the figures on your own label for an accurate result.
Use it in any device with a refillable tank or pod, such as a refillable pod kit or a tank-style kit. It is not suitable for closed pod systems, prefilled pods or rechargeable big-puff devices with a sealed liquid supply, because those are not designed to be refilled. Check your device manual for its recommended liquid thickness and compare it with the ratio on the bottle. UK rules limit a refillable tank or pod to 2ml, so expect to top up often.
Our listing names the flavour but does not describe its notes, so we would rather not guess. In e-liquid naming, green often hints at a fruit or sour sweet profile, but that is a general convention and not a statement about this bottle. The label, once the bottle arrives, is the best reference. Since every Caliypso bottle costs £7.99, trying one and swapping to another flavour next time is an inexpensive way to find what you like.
The listing does not state the ratio, so please read it from the label on your bottle. It matters because thicker, higher-VG liquids usually suit open tanks with generous airflow, while more balanced liquids flow better into small refillable pods. If your device maker recommends a particular range, compare it with the label before filling. If you are unsure, our contact page can point you in the right direction.
Keep it upright with the cap firmly closed, somewhere cool and dark such as a cupboard or drawer. Avoid heat and direct sunlight, which can change the colour and flavour of the liquid. Wipe the nozzle after each use. If you have added nicotine shots, write the date on the bottle and use it within a sensible period, following the best-before date on the label. Keep all bottles and shots out of reach of children and pets.
Standard UK delivery is free on orders over £20 and normally takes two to three working days. Under £20, standard delivery costs £2.99. Next-day delivery is £4.99 when you order before 4pm, Monday to Friday. A single bottle at £7.99 falls under the free threshold, while three bottles at £23.97 clear it. Our shipping page has the current timings, and vaping products are for adults only.
For hygiene and safety reasons we cannot accept returns on opened e-liquids. If an item arrives faulty, you can return it within 30 days for a replacement or refund, and you should contact us to start the process. It is a good idea to check the label against your order before you open the bottle, so you can be sure it is the flavour you wanted. The delivery and returns page has the full wording.
No. Caliypso e-liquid is sold to adults only, and it is illegal in the UK to sell vaping products to anyone under 18. Our checkout is age-verified, and you may be asked to confirm your age when you order. Keep bottles and any nicotine shots out of reach of children. The age verification page on our site explains how the process works and what you may need to provide.
Royal Mail Tracked 24 (Next-Day): £1.99, FREE on orders over £20.
DPD Next Working Day: £3.99 (£2.99 over £20), FREE over £100.
Same-day dispatch on orders placed before 4pm Mon-Fri. See our delivery page for full details.
Really pleased with the order overall. Everything arrived as expected, well packed, fast dispatch.
Ordered Wednesday evening, arrived Thursday morning. Everything sealed, genuine, exactly what I expected.
Taste is proper — no chemical aftertaste or anything. Just clean flavour throughout. Love it.
Been looking for something like this for ages. Finally found a brand that doesn't disappoint.
Switched from a well-known brand and this is actually better, especially for the price. Will reorder.
Delivery was super fast and the product is genuine. I've had fakes before so this was a relief.
Caliypso
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Angel
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