Understanding E-Liquid: Nicotine, VG/PG, and Flavours Explained
E-liquid (also known as vape juice) is the heart of every vaping experience. While devices and coils matter, it's the e-liquid that determines how strong your nicotine hit feels, how smooth or cloudy your vape is, and how intense the flavour tastes.
If you've ever wondered why some e-liquids feel smoother than others, why certain vapes produce massive clouds, or why flavours taste different across devices, this guide breaks it all down. We'll explain nicotine types, VG/PG ratios, and flavour profiles in a simple, easy-to-understand way — so you can choose the right e-liquid for your vaping style.
What Is E-Liquid?
E-liquid is the fluid heated by your vape device to produce vapour. Most e-liquids contain four main ingredients:
- Nicotine (optional)
- Vegetable Glycerin (VG)
- Propylene Glycol (PG)
- Food-grade flavourings
The balance between these ingredients affects throat hit, vapour production, flavour intensity, and overall satisfaction.
You can explore a wide range of options in the EcoSmok e-liquids collection.
Nicotine Explained: Freebase vs Nic Salts
Freebase Nicotine
Freebase nicotine is the traditional form used in e-liquids. It provides a noticeable throat hit, especially at higher strengths.
- Common strengths: 0mg, 3mg, 6mg, 12mg
- Best for sub-ohm and DTL vaping
- More throat hit at higher power
Freebase nicotine works best with high VG liquids used in powerful vape kits.
Nicotine Salts
Nicotine salts (nic salts) are smoother and absorb into the bloodstream faster, making them ideal for ex-smokers.
- Common strengths: 10mg and 20mg (UK TPD compliant)
- Smoother throat hit
- Faster nicotine satisfaction
- Ideal for MTL and pod systems
You'll find a huge selection of popular nic salts in the EcoSmok Nic Salts collection, including top-selling disposable-style flavours.
Elf Bar Elfliq Nic Salt Vape Juice 10ml
VG vs PG: What Do They Do?
Vegetable Glycerin (VG)
VG is a thick, slightly sweet liquid responsible for vapour production.
- Produces bigger clouds
- Smoother inhale
- Thicker consistency
- Best for sub-ohm and DTL vaping
Propylene Glycol (PG)
PG is thinner and carries flavour and nicotine more efficiently.
- Stronger throat hit
- More intense flavour delivery
- Less vapour production
- Ideal for MTL vaping
Common VG/PG Ratios Explained
- 50/50 VG/PG – Balanced flavour and throat hit, perfect for pods and MTL kits
- 60/40 VG/PG – Slightly smoother with better vapour
- 70/30 VG/PG – High vapour production for sub-ohm vaping
- Max VG – Extreme clouds, minimal throat hit
Choosing the wrong ratio can lead to leaking, dry hits, or muted flavour — so matching your e-liquid to your device is key.
E-Liquid Flavours Explained
One of the biggest advantages of vaping is flavour variety. Unlike cigarettes, e-liquids come in hundreds of flavour profiles.
Popular E-Liquid Flavour Categories
- Fruit – Strawberry, mango, blueberry, mixed berries
- Menthol & Ice – Cool, refreshing throat hit
- Dessert & Bakery – Custard, vanilla, doughnut, cake
- Drinks – Cola, energy drink, lemonade
- Tobacco – Designed for smokers transitioning to vaping
Disposable-inspired flavours have become especially popular in nic salts, delivering bold, sweet, and icy profiles.
Frequently Asked Questions
Nicotine salts with a 50/50 VG/PG ratio are best for beginners, especially those quitting smoking.
Higher VG is better for clouds and smoothness, but only works well with sub-ohm devices.
A burnt taste usually means your coil needs replacing or your wattage is too high.
Final Thoughts
Understanding e-liquid — from nicotine strength and VG/PG ratios to flavour types — helps you get the best possible vaping experience. Choosing the right combination ensures better flavour, smoother hits, and fewer problems.
Whether you prefer smooth nicotine salts, cloud-chasing high VG liquids, or bold disposable-style flavours, you'll find premium options at EcoSmok.