What Is Vg/Pg Ratio And Why Does It Matter?

If you have ever stood in front of a shelf of e-liquids, or scrolled through an online vape store, you would probably have noticed a little number printed on every bottle which are- 50/50, 60/40, 70/30, sometimes even 80/20. 

That number is the VG/PG ratio, and honestly, it is one of the most important things to understand if you want to enjoy vaping the way it is meant to be enjoyed. It affects the thickness of the liquid, how much vapour you produce, how strong the hit feels at the back of your throat, and even how well your device performs. 

Yet so many new vapers never get a proper explanation of what these letters actually mean. In this guide we will tell you all about it and also about why does it matters. 

What Do Vg And Pg Actually Stand For?

VG stands for vegetable glycerine, and PG stands for propylene glycol. Both are the two main carrier liquids which are used to make every bottle of vape juice on the market, and when they are added together they make e-liquid which is added before adding nicotine. 

Both of them are added by the manufacturers in different proportions according to the preference of the product. When you see a ratio like 70/30 printed on a bottle, the first number almost always refers to the percentage of VG, and the second to the percentage of PG. So a 70/30 bottle is 70 percent vegetable glycerine and 30 percent propylene glycol. Once you understand that one simple rule, reading e-liquid labels becomes far less confusing.

A Closer Look At Vegetable Glycerine (Vg) 

Vegetable glycerine is a thick, slightly sweet liquid that comes from plant oils, most commonly palm, soy, or coconut. It has a syrupy consistency, similar to golden syrup, which is why liquids with a high percentage of VG tend to feel noticeably thicker when you pour them. This thickness is exactly what gives high VG vape juice its trademark billowing clouds, because VG vaporises into dense, visible plumes far more effectively than PG does. It also has a subtle natural sweetness of its own, which can round off harsher flavour notes and give the vapour a smoother, softer texture on the inhale. The trade-off is that because VG is so viscous, it can struggle to soak into cotton wicks quickly, particularly in devices with small coils, which is part of the reason why very thick liquids are usually reserved for tanks and coils built to handle them.

A Closer Look At Propylene Glycol (Pg)

Propylene glycol is a much thinner, almost water-like liquid that is also used in a huge range of everyday products, from asthma inhalers to food flavourings, and it is considered safe for inhalation and ingestion. Unlike VG, propylene glycol is flavourless, which means it acts almost like a blank canvas that carries flavour compounds. This is why liquids with a higher PG content tend to taste noticeably more intense. PG also produces the sensation vapers commonly call throat hit, that is like a slight tickle or scratch at the back of the throat that is somewhat like the feeling of inhaling cigarette smoke. Because it is so thin, it wicks through cotton extremely quickly, which makes it ideal for smaller, lower-power devices such as basic pod kits.

How The Ratio Number Actually Works?

 

Once you know what VG and PG is, the ratio simply tells you how much of each is present in that bottle of nicotine e-liquids.  A 50/50 blend gives you an equal balance of both, so you get a balanced experience that leans neither heavily towards clouds nor heavily towards throat hit. 

A 70/30 or 80/20 blend, where VG dominates, is generally described as a high VG blend and is built for bigger vapour and smoother inhales. There are also 60/40 or 40/60 bottles, but the vast majority of vape juice are according to the standard ratios because they have been tested extensively against different coil types and airflow systems. Understanding this scale means you can predict roughly how a bottle will feel and perform before you have even opened it.

50/50 E-Liquids: The Balanced Choice

50/50 e-liquids are often recommended as the natural starting point for anyone new to vaping, and there is good reason for that advice. With an even split between VG and PG, these liquids are thin enough to wick smoothly through the small coils found in basic starter devices, yet still produce a reasonable amount of vapour and a satisfying throat hit that feels familiar to anyone transitioning from smoking. 

Because the liquid is not overly thick, it also works well in devices with tighter airflow, which tend to be closer in feel to drawing on a cigarette. Many of the 10ml nicotine salt bottles you will find online are formulated at 50/50 precisely because this ratio behaves so predictably across such a wide range of pod kits.

High Vg E-Liquids: Built For Clouds

High VG e-liquids, which come in roatio 70/30 up to 80/20 or higher, are formulated for vapers who want big, soft clouds and a smoother inhale rather than a sharp throat hit. This style of liquid tends to be paired with sub-ohm tanks and mesh coils that are built with larger wicking channels, since the thickness of high VG juice needs more surface area to soak in properly. 

Flavour is still present, but because there is less PG to carry the taste, high VG blends often taste slightly milder or sweeter than their higher PG counterparts. These liquids are extremely popular among more experienced vapers who have moved on from basic pod kits to more powerful kits and tanks. 

Where Nicotine Salt E-Liquids Fit In?

Nicotine salt e-liquids are a slightly different category, but VG/PG ratio still plays a role in how they perform. Nicotine salts use a naturally occurring form of nicotine that is smoother on the throat even at higher strengths, which is why you will often see them available in 10mg, 20mg strengths that would feel far too harsh in a standard freebase nicotine liquid. Because nic salts are usually vaped in small, low-power pod kits rather than powerful sub-ohm tanks, most nicotine salt bottles are formulated at 50/50, which strikes the right balance between wicking well in a compact pod and still delivering a satisfying flavour and hit. This combination of nicotine salts and a moderate VG/PG ratio is exactly why so many people find pod kits such a comfortable and convenient way to vape, particularly if they are switching over from smoking for the first time. 

Shortfill E-Liquids And Why Ratio Matters Here Too

Shortfill e-liquids are large bottles, usually 100ml, that are filled slightly short of the total capacity so that an optional nicotine shot can be added. Because shortfills are designed with cloud-chasing and flavour-forward vaping in mind, they are almost always formulated as high VG blends, commonly 70/30, giving them the thick, cloud-friendly consistency so that they can blend nicely in the sub-ohm tanks and larger pod systems they are typically paired with. 

Understanding the ratio on a shortfill bottle is particularly useful because it tells you straight away whether your device is even compatible. For example a very thick 80/20 shortfill poured into a tiny pod coil built for thin liquid is likely to cause dry hits or leaking. 

Throat Hit: How Pg And Vg Change The Feeling?

Throat hit is one of the most personal aspects of vaping, and it almost depends on the PG percentage of your chosen vape juice. A liquid with more PG produces a crisper, sharper feel on the inhale that many ex-smokers like since it gives the feel of tobacco smoke more closely than a smoother high VG liquid ever could. 

On the other hand, a high VG blend produces a much softer, rounder inhale that some vapers describe as gentler on the throat, which can be good for someone who vapes frequently throughout the day. 

Vapour Production: Why Some Vape Juice Clouds More?

If big, dense clouds are what you are after, the science comes down to viscosity and how each liquid vaporises inside a coil. Vegetable glycerine has a much higher boiling density of vapour particles, meaning that when it is heated it expands into far larger, more visible clouds compared with propylene glycol, which tends to vapourise into a thinner, less dramatic mist. This is precisely why people who like clouds almost always reach for high VG e-liquids paired with powerful sub-ohm tanks that can push more wattage through a larger coil surface area. Also, if you are simply looking for a satisfying, low-key vape to replace cigarettes, a balanced or PG-leaning liquid in a discreet pod kit may suit your lifestyle far better than a cloud-heavy setup. 

Flavour Delivery And The Ratio Connection 

Flavour is often the deciding factor for a lot of vapers, and this is another area where the ratio genuinely changes the experience. Because propylene glycol carries flavour compounds so effectively, liquids with a higher PG content tend to taste sharper, more accurate, and closer to how the flavour was originally intended to taste by the manufacturer. Vegetable glycerine, by contrast, has a naturally sweet undertone that can slightly mute or soften more delicate or complex flavour notes. 

Matching Your Ratio To Your Pod Kit 

Not every device is built to handle every ratio, and this is where a lot of beginners run into trouble without realising why. Standard pod kits, particularly the compact, closed-system style aimed at people switching from smoking, are engineered around thinner liquid and generally perform best with 50/50 blends. Push a very thick 80/20 high VG liquid into one of these small coils and you are likely to notice weaker flavour, gurgling, or even dry, burnt-tasting hits, simply because the coil cannot wick the liquid fast enough to keep up with the power being applied. 

This happens when there is a mismatch between viscosity and coil design, and it is one of the most common reasons beginners feel disappointed with their first vape when the real issue is simply an unsuitable ratio. 

Refelliable Pod Kits And Getting The Coil Compatibility Right

Refillable pod kits give you a little more freedom than closed, pre-filled systems, since you can experiment with different vape juice and coil resistances to find your ideal setup. Many refillable pods are versatile enough to handle both 50/50 liquids and slightly thicker 60/40 blends, particularly if the coil has a mesh design or a wider wicking port, but it is always worth checking the manufacturer's recommendation before pouring in anything much thicker than that. 

The advantage of a refillable system is that if you do want to try a slightly higher VG liquid for a smoother inhale, you often have the flexibility to switch to a coil built for that purpose, giving you a genuinely custom experience without having to buy an entirely new device. This adaptability is a big part of why refillable pod kits have become so popular with vapers who have outgrown a basic starter kit but are not quite ready for a full sub-ohm setup. 

Nicotine Strength And How It Interacts With Ratio?

It is worth remembering that VG/PG ratio and nicotine strength are two separate decisions, even though they are printed on the same bottle. Whether you are choosing 3mg, 6mg, 12mg, or a stronger nicotine salt strength, that decision should mainly be based on how much you used to smoke or how much nicotine your body is used to, while the ratio decision should be based on your device and your personal preference for throat hit versus vapour. That said, the two do interact slightly, because higher PG content can make a strong nicotine hit feel sharper and more noticeable, while a higher VG content can soften that same nicotine strength and make it feel gentler on the throat. 

How To Pick The Correct Vape Juice For You 

With all of this in mind, choosing the right vape juice really comes down to being honest with yourself about what you want from your device. If you are newer to vaping, still transitioning away from cigarettes, or using a small, discreet pod kit, a 50/50 blend, quite possibly in nicotine salt form, is almost always the safest and most satisfying starting point. 

If you already own a more powerful tank or refillable pod kit and you are chasing thicker clouds and a smoother inhale, a high VG option in the 70/30 range is worth exploring, especially through the shortfill category where flavour variety tends to be widest. You can switch between different options once you are habituated.

FAQ’s 

1. What's the actual difference between 50/50 and 70/30 e-liquid?

A. 50/50 splits VG and PG evenly for balanced flavour and throat hit, while a 70/30 blend leans heavier on VG, producing more vapour with a smoother throat sensation. 

2. Which ratio should a beginner or pod kit user pick?

A. PG-heavy blends tend to suit pod kit devices best, so 50/50 is generally the safest, most compatible starting point for beginners.

3. Can I use high VG juice in my pod kit?

A. You can, but thick VG-heavy juice can't wick fast enough in a small pod coil, which dries the coil out and causes a burnt taste.

4. Why does my throat feel sore or dry after vaping?

A. This is usually linked to mild PG sensitivity. Around 1 in 10 new vapers notice some upper-throat irritation or dryness from PG and it often eases with a higher VG blend or more water. 

5. Does the ratio affect how strong my nicotine hit feels?

A. Not the nicotine strength itself, but a higher PG ratio tends to sharpen and increase the nicotine's impact, while higher VG softens it. 

Conclusion 

VG/PG ratio might look like a small detail printed in tiny font on the side of a bottle, but as you can see, it quietly shapes nearly every part of your vaping experience, from the thickness of the liquid to the size of your clouds, the strength of your throat hit, and even how accurately your flavours come through. 

There is genuinely no single correct ratio for everyone, and the best approach is simply to understand what each end of the scale offers so you can make an informed choice rather than a random guess. Whether you settle on a balanced 50/50 in a simple pod kit or a cloud-friendly high VG shortfill in a sub-ohm tank, knowing the reasoning behind the number on the bottle means every future purchase will be a far more confident one.