E-Liquid Ratio – What is it in Vaping?

Definition

E-Liquid Ratio (also called e-juice ratio) is the proportion of two key ingredients in every bottle of e-liquid: Glycol)”>PG (propylene glycol) and VG (vegetable glycerine). Written as a pair of numbers—such as 50/50, 70/30 or MAX VG—it tells vapers how much Hit“>throat hit, vapour and flavour they can expect. The ratio is printed on every label and is the first thing to check when buying new e-cigarette or e-shisha liquid, because it determines whether the juice will work smoothly in your eGo style pen or high-wattage sub-ohmmod.

Technical Details

How It Works

PG is a thin, flavour-carrying liquid that gives the “throat hit” smokers often crave. VG is a thicker, slightly sweet liquid that produces dense vapour clouds. When the E-Liquid Ratio is balanced (e.g., 50/50), both properties are moderate. Raising PG sharpens flavour and hit but can feel harsh; raising VG softens the hit and increases cloud size yet can mute flavour and clog small coils.

Common Ratios & Specs

  • 50/50 PG/VG – Universal starter ratio; suits most eGo style pens and pod systems.
  • 60/40 or 70/30 PG/VG – Ideal for mouth-to-lung (MTL) tanks seeking stronger flavour.
  • 70/30 VG/PG – Cloud-chaser standard; needs sub-ohm coils above 30 W.
  • MAX VG (80–90 % VG) – Competition clouds; may require wide wicking ports and high-wattage mods.

Manufacturers list ratios by volume (mL per 100 mL) and must comply with the Australian TGO 110 nicotine concentration limits.

Usage & Tips

Choosing the Right Ratio

  • Beginners: Start with 50/50; it wicks well in basic e-cigarette kits and avoids dry hits.
  • Leak Fix: If your tank leaks, try a higher-VG blend; its thicker viscosity slows seepage.
  • Coil Care: High-VG e-liquids gunk coils faster—rinse or replace weekly to keep flavour clean.
  • Safety: Shake bottles before every refill; VG can separate and cause uneven nicotine dosing.

Store e-liquid in a cool, dark cupboard to maintain the declared PG/VG balance and nicotine strength.

History & Context

Early e-juice in 2008 was almost pure PG. As vapers sought bigger clouds, VG ratios climbed from 30 % to today’s MAX VG offerings. Australian vendors now cater to both discreet MTL users and sub-ohm enthusiasts, making ratio labelling a legal requirement under the Therapeutic Goods Order since 2021.

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