What Is 10ml E-Liquid and How Is It Different?
Everything you need to know about 10ml e-liquid bottles, UK regulations, nicotine types and how they compare to shortfills and nic salts.
Quick answer: A 10ml e-liquid is a small, pre-mixed bottle of vape juice ready to use straight away. Under UK TPD regulations, any e-liquid containing nicotine must be sold in bottles no larger than 10ml. This makes the 10ml bottle the standard format for nicotine-containing e-liquid in the UK. It differs from a shortfill, which is a larger nicotine-free bottle designed for you to add a nic shot yourself.
What Is a 10ml E-Liquid?
A 10ml e-liquid is a compact, sealed bottle containing pre-mixed vape juice made from propylene glycol (PG), vegetable glycerine (VG), food-grade flavourings and, in most cases, nicotine. The liquid is ready to pour directly into a vape tank or pod without any additional mixing. You open it, fill your device and vape.
The 10ml size is a direct result of the UK Tobacco and Related Products Regulations (TRPR). Under these rules, any bottled e-liquid containing nicotine cannot be sold in containers larger than 10ml. This rule has been in place since 2017 and applies to every UK retailer and manufacturer, including Celtic Vapours.
What Is Inside a 10ml E-Liquid Bottle?
Every 10ml e-liquid contains four core ingredients. PG (propylene glycol) is a thin, colourless liquid that carries flavour and produces the throat hit you feel when you inhale. VG (vegetable glycerine) is a thicker, slightly sweet liquid responsible for vapour production. Flavour concentrates give the liquid its taste and nicotine (where present) satisfies your cravings. Some 0mg options contain no nicotine and are used by vapers who have reduced their intake to zero.
The ratio of PG to VG affects how the liquid behaves in your device. Most 10ml bottles use a 50:50 blend, which produces a balanced amount of flavour and vapour and works well in the starter kits and pod systems most commonly paired with this bottle size.
PG (Propylene Glycol)
Thin, colourless carrier liquid. Responsible for flavour intensity and throat hit. A higher PG ratio makes the liquid thinner and better suited to low-powered MTL devices and pod kits.
VG (Vegetable Glycerine)
Thicker, slightly sweet base liquid. Responsible for vapour production. Higher VG ratios produce bigger clouds and are used in more powerful sub-ohm devices rather than standard 10ml setups.
Flavour Concentrates
Food-grade flavourings that give the liquid its taste profile. Celtic Vapours uses flavour concentrates blended in Wales to achieve consistent, repeatable taste across every batch.
Nicotine (Optional)
Either freebase nicotine (0mg to 18mg, stronger throat hit) or nicotine salt (5mg to 20mg, smoother and faster-acting). All Celtic Vapours nicotine-containing products are TRPR registered with the MHRA.
How Is a 10ml E-Liquid Different from a Shortfill?
The key difference is nicotine. A 10ml e-liquid is pre-mixed with nicotine. A shortfill is a larger nicotine-free bottle because UK law only allows nicotine e-liquid in 10ml bottles. To add nicotine to a shortfill, you buy a separate nic shot and pour it in yourself, creating a larger quantity at a lower strength, typically around 3mg after mixing.
| Feature | 10ml E-Liquid | Shortfill | Nic Salt (10ml) |
|---|---|---|---|
| Bottle size | 10ml | 25ml, 50ml, 100ml+ | 10ml |
| Nicotine included | Yes (0–18mg freebase) | No (add nic shot) | Yes (5–20mg salt) |
| Ready to use | Yes | No (mix required) | Yes |
| Typical PG:VG | 50:50 or 60:40 PG | 70:30 or 80:20 VG | 50:50 or 60:40 PG |
| Best for | MTL devices and pod kits | Sub-ohm and DTL vaping | MTL pods, ex-smokers |
| Throat hit style | Noticeable at higher strengths | Smooth (low strength) | Smooth even at 20mg |
| TPD compliant | Yes | Yes (nicotine-free) | Yes |
Freebase Nicotine vs Nic Salt in a 10ml Bottle
Within the 10ml format you will find two distinct nicotine types. Freebase nicotine produces a noticeable throat hit and is available from 0mg up to 18mg. It absorbs into the bloodstream slightly more slowly than nic salt. Nicotine salt uses benzoic acid to make the nicotine smoother and faster-acting at higher concentrations. A 20mg nic salt feels considerably smoother than a 20mg freebase and satisfies cravings more quickly. If you are switching from cigarettes or from a disposable vape, nic salt at 10mg or 20mg is almost always the better choice.
How Long Does a 10ml Bottle Last?
In a standard MTL pod kit, most vapers get roughly 1,500 to 3,000 puffs from one 10ml bottle, typically two to four days of moderate vaping. On a more powerful sub-ohm device the same bottle could last less than a day. A 10ml bottle at the right nicotine strength delivers a similar experience to roughly 100 to 150 cigarettes, broadly equivalent to five to seven packs in terms of nicotine delivery.
Browse Celtic Vapours 10ml E-Liquid
All flavours and nicotine strengths, made in Wales. TRPR compliant. Available online with fast UK delivery.
What Devices Work with 10ml E-Liquid?
A 10ml e-liquid at 50:50 or high-PG ratio works best in refillable pod kits, vape pens, starter kits and MTL tanks with coil resistance above 0.8ohm. These devices use thinner liquid efficiently and pair well with the moderate nicotine strengths 10ml bottles offer. High-VG shortfill blends are designed for sub-ohm tanks and more powerful devices that require thick liquid to function correctly.
Why Celtic Vapours Makes Its E-Liquid in Wales
Celtic Vapours is one of the few UK e-liquid brands that manufactures its products in-house rather than sourcing stock from overseas. The range is blended in Wales, which means shorter supply chains, more consistent batch quality and full traceability from ingredient to bottle. Every product is TRPR registered with the MHRA before going on sale.
Explore the Celtic Vapours 10ml E-Liquid Guide
Our hub page covers nicotine strength guidance, PG and VG ratios, storage tips and the best flavours for your taste.
Frequently Asked Questions
UK law (TRPR) limits nicotine-containing e-liquids to 10ml bottles as a safety and regulatory measure. The rule ensures that nicotine levels per unit remain within safe limits and that products are traceable and MHRA-registered before sale. Nicotine-free e-liquid such as shortfills is not subject to this size restriction.
Most 10ml e-liquids use a 50:50 or 60:40 PG:VG ratio, making them compatible with most MTL pod kits, vape pens and starter kits. They are not ideal for sub-ohm or direct-to-lung devices, which require thick high-VG shortfill liquids. Always check the recommended VG:PG ratio for your device before filling.
Freebase nicotine delivers a stronger throat hit and is available from 0mg to 18mg. Nic salt uses benzoic acid to make the nicotine absorb faster and feel smoother, even at 20mg. If you are transitioning from cigarettes or disposable vapes, nic salt at 10mg or 20mg is usually more satisfying.
Standard 10ml e-liquids typically cost between £3 and £5 per bottle in the UK. Celtic Vapours offers a 3 for £10 deal on its own-brand range, which brings the cost per bottle down significantly.
Yes. The term TPD e-liquid describes any nicotine-containing e-liquid sold in a 10ml bottle in compliance with the Tobacco Products Directive or, in the UK, the TRPR. All nicotine e-liquids sold legally in the UK must meet these standards regardless of brand.