All e liquids contain a ratio of two important ingredients. These are VG (vegetable glycerin) and PG (propylene glycol). VG is a thicker substance whereas PG is thinner. Different ratios of these ingredients will affect the viscosity of the vape liquid and therefore which types of device they will be most suitable for. They also have an effect on the vapour and 'throat hit' that an e liquid will produce:
- E-liquids with a VG bias tend to produce larger vapour clouds with little to no throat hit.
- E Liquids with a PG bias provide the hit to the back of the throat that is often favoured by those trying to give up smoking. These liquids tend to produce a more subtle amount of vapour.
E Liquid PG & VG Ratios
Most e liquid bottles will indicate what ratio of PG and VG ingredients they contain. You can use this information to work out what type of vape experience you will get and which devices they will be suitable for.
Vape Liquids with Over 50% VG
These will be suitable for kits and coils with less than 1 ohm resistance. These coils are usually provided for vape kits designed for 'sub ohm' or 'DTL' vaping.
Vape Liquids with Over 50% PG
These will be suitable for kits and coils with more than 1 ohm resistance. These coils are usually provided with e-cigarettes designed for 'classic' or 'MTL' vaping.
Vape Liquids with a Balanced 50% PG/50% VG Ratio
50/50 vape liquid will be suitable for use with most kits, tanks and coils. However, if your coil's resistance is below 0.4 ohm, we would recommend opting for a higher VG e liquid.
You can find out more about PG & VG in our “what is e liquid” guide.