What does e-liquid consist of?

eliquid flavours

Flavour Factory e-liquids get their vibrant flavour from four simple ingredients: propylene glycol (PG), vegetable glycerin (VG), nicotine and food-grade flavourings.

Oh, and a dash of water too.

All of our products are made using all natural ingredients, leaving them free from allergens and potentially hazardous ingredients such as Diacetyl.

Both PG and VG are non-toxic, organic compounds that are completely safe for consumption. Both are used in a number of foods, many of which you’ll eat on a regular basis. Most e-liquids contain a mixture of both PG and VG which is commonly given as a percentage. This ratio is a major contributor to the overall flavour and type of vaping experience that you enjoy.

So what is the difference between PG and VG?

Propylene glycol (PG) explained

Propylene glycol is a common food additive that can be found in ice cream, frozen desserts and ketchup. It tends to be more commonly used in e-liquids than vegetable glycerin, due in part to the fact that it doesn’t have a strong taste or odour. This means that PG does not mask or dilute the potency of other flavours added to the e-liquid mixture.

PG has a stronger throat hit compared to VG, more akin to the traditional feel of a tobacco cigarette. It’s thin in consistency, which means it’s less likely for residue to build up in the vaporiser compared with VG.

These flavours have a higher ratio of PG to VG: fruit salad, honeydew melon, mango.

Vegetable glycerin (VG) explained

Vegetable glycerin is also common in the food industry, particularly as an alternative sweetener to sugar. If you’ve ever wondered how some vapers manage to achieve such an impressive billow of smoke when they exhale, it means that their vape juice has plenty of VG mixed in.

Compared to PG, VG has a much thicker, more viscous consistency and a much sweeter taste on its own. When blending flavours, we have to be careful not to allow VG to mask the taste of other additional flavourings. You also get less of a ‘throat hit’ when vaping eliquid that is predominantly composed of VG.

These flavours have a higher ratio of VG to PG: strawberry, tobacco, peppermint, and any ‘cloud’ eliquid.

PG or VG: which is better?

It really all depends on your individual preference. If you prefer flavour intensity and that throaty feeling over plumes of vapour and perhaps a bit more gunk to clean out of your atomiser every now and again, go for PG. If you prefer less of a throat hit but more vapour, natural sweetness and minimising the chance of an allergic reaction, go for VG.

Bear in mind that most eliquids will have a certain ratio of both PG and VG contained as part of the mixture. If you’re unsure which one you’d prefer then it might be worth going for a 50PG/50VG option, there are plenty to choose from!

These flavours have a 50/50 split between PG and VG: rhubarb and custard, blueberry, banana toffee, pear drops.


In addition to propylene glycol and vegetable glycerin, most eliquids contain flavourings (or concentrates) that are intended to enhance the vaping experience and replicate a particular taste or flavour. These flavourings are often exactly the same concentrates used in our widely used food and drink products.

Whether you’ve a sweet tooth or prefer a more mellow, traditional taste, there is likely to be a vape juice to match it. Have a browse through our unrivalled range of eliquid flavours and see which one grabs your attention.

Avoiding allergies

The biggest problem most vapers face is deciding which flavour and taste sensation they prefer. However, there is a small minority who may experience a slight allergic reaction when smoking either PG or VG. If you find yourself in any discomfort when smoking PG based e liquids, try switching to VG; and vice versa.

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