Every bottle of vape juice carries a ratio like “70/30” or “50/50” — and understanding it transforms how you choose e-liquid. The two letters stand for the liquids that form the base of every juice: VG (vegetable glycerin) and PG (propylene glycol). Here’s what each does and how to pick your perfect balance.

What VG Does: Clouds and Smoothness

Vegetable glycerin is a thick, slightly sweet liquid that produces dense, visible vapour. High-VG juices (70% VG and above) create the big clouds you see in photos, deliver a smoother inhale, and suit more powerful devices. The trade-off: VG is thicker, so it wicks more slowly and can overpower delicate flavour notes.

What PG Does: Throat Hit and Flavour Carry

Propylene glycol is a thin, flavourless liquid that carries flavour brilliantly and delivers the sharp “throat hit” many ex-smokers miss. High-PG juices (50/50 or higher) taste more intense, feel more like a cigarette at the back of the throat, and work perfectly in smaller pod devices. Too much PG can feel harsh for some users.

Which Ratio Should You Choose?

What About Disposables?

Disposable vapes come with the ratio pre-set by the manufacturer — usually balanced toward smooth vapour with strong flavour carry. You don’t need to think about it: just pick a flavour family you enjoy. Our flavour guide“>flavour guide covers the most popular families in Australia.

The Bottom Line

Cloud chaser? Go high VG. Ex-smoker wanting that familiar hit? Higher PG. Want both? A 50/50 is the safe universal choice. And if you’d rather skip the decisions entirely, the pre-set devices at Aus Vape King handle it all for you.

Frequently Asked Questions

Is VG or PG safer?

Both are widely used in food and pharmaceutical products and have long safety histories in vaping. Choosing between them is about experience preference, not safety ranking.

Can I mix my own ratios?

We don’t recommend home-mixing — commercial juices are professionally formulated and batch-tested for consistency.