What Is the Vg and Pg in Vape Juice?

Written by: Chris Sharpe



Time to read 12 min

While you might think that understanding the intricacies of VG and PG is just for the aficionados, getting to grips with these elements can significantly enhance your vaping experience. In every bottle of vape juice, VG—Vegetable Glycerine—and PG—Propylene Glycol—serve as the foundational duo that dictate the texture, flavour intensity, and overall feel of your vapor. If you've ever wondered why some e-liquids produce dense clouds while others offer a sharper taste and satisfying throat hit, it's the VG/PG ratio playing its part. As you explore the world of vaping, you'll find that knowing the balance of these two substances allows you to fine-tune your sessions to your exact preferences. Stick around, and you'll uncover the subtle art of selecting the perfect VG/PG ratio that not only suits your taste but also complements your vaping equipment.

Key Takeaways

PG and VG are the main ingredients in e-liquids, affecting flavour, throat hit, cloud production, and nicotine hit.
- PG stands for propylene glycol and is a thin and odourless liquid, while VG stands for vegetable glycerine and is slightly thicker with a mildly sweet flavour.
- The ratio of PG to VG differs in e-liquids and works with different vape kits, with different ratios giving different effects.
- Both PG and VG create vapor and carry flavour in e-liquids, but higher PG content gives less vapor and requires less heat, while high VG e-liquids produce more vapor but may have less intense flavours.

Understanding PG and VG

Grasping the roles of PG (Propylene Glycol) and VG (Vegetable Glycerine) is crucial as they are fundamental components that shape your vaping experience. Propylene glycol, a colourless liquid, is less viscous than VG, allowing for a smoother hit that mirrors traditional smoking. It's renowned for its ability to carry flavours effectively, making it a staple in most e-liquids. On the flip side, vegetable glycerine is thicker than PG and produces a liquid with a slightly sweet taste, which can subtly affect the overall flavour profile of your vape juice.

When you're vaping, PG vaporizes at low temperatures, which means it's a perfect match for low-powered devices. It also vaporizes faster than VG, ensuring that you get a quicker hit with more pronounced flavours. However, if you're chasing those impressive clouds, then max VG formulations are your go-to. VG leads to denser vapor production, but keep in mind, it may require a more powerful device to heat effectively.

The balance between these two ingredients is pivotal. A blend of PG and VG can deliver both flavour and vapor production. Common ratios include 70/30 VG/PG for cloud chasers and 50/50 for those who want a balanced vape. Each ratio provides a distinct experience, from the throat hit to the size of the vapor clouds produced. So, whether you prefer a sharp flavour-focused session or love to envelop yourself in billowing vapor, it's the harmony between propylene glycol and vegetable glycerine that tailors your vaping journey.

Effects on Vaping Experience

The ratio of PG to VG in your vape juice significantly shapes your vaping experience, from the intensity of the flavour to the volume of vapor produced. When you're choosing between high pg e-liquids and high vg e-liquid, you're deciding on more than just what's inside your bottle; you're customizing how you vape to your personal tastes and device capabilities.

Here's how the PG/VG balance can change your experience:

1. Flavour and Throat Hit: PG stands for propylene glycol, a substance known for carrying flavours well and providing a stronger throat hit. If you prefer a sharp, pronounced taste and that familiar kick at the back of your throat similar to traditional smoking, high pg e-liquids might be your go-to choice.

2. Vapor Production: VG stands for vegetable glycerine, and it's renowned for creating impressively thick clouds of vapor due to its higher viscosity. If billowing vapor is what you're after, a high concentration of VG will deliver that effect.

3. Smoothness and Device Compatibility: The thickness of VG means it has a smoother feel on the inhale, but it also requires a device that can handle its density. PG vaporizes at low temperatures, making it suitable for lower-powered devices, while VG might require a more advanced setup due to its viscosity and the fact that it vaporizes at higher temperatures.

In essence, the vg or pg content not only affects the vaping experience by altering taste and vapor production but also influences which devices are best suited for your e-liquid. Adjusting the ratio can lead to a more enjoyable and satisfying vape, tailored exactly to your preferences.

Safety and Health Considerations

When considering the safety and health implications of vaping, it's crucial to note that while PG and VG are generally recognized as safe for consumption, the long-term effects of inhaling these substances are not fully understood. PG stands for propylene glycol, and it's widely considered safe to vape. It vaporizes at low temperatures and faster than VG, which stands for vegetable glycerine. This means that e-liquids with high PG content can provide a satisfying experience without the need for high-powered devices.

VG, on the other hand, is known for creating a smoother vape with thicker clouds. High VG concentrations work best in more robust systems capable of handling the substance's viscosity. However, you might run into issues dealing with high VG, such as clogging your device's coils or producing a muted flavour.

While PG is commonly used in various inhalable and consumable products, it's essential to be aware that some individuals may experience a sensitivity to it, resulting in irritation or a dry mouth. In contrast, VG is typically gentler, but it's still important to stay hydrated, as vaping can be dehydrating regardless of the PG/VG ratio.

Always remember that vaping products should be used responsibly. Even though PG and VG are considered safe for consumption, the additives and nicotine that can be present in vape juice require careful consideration. If you're new to vaping or have health concerns, you should consult with a healthcare professional to discuss whether vaping is a suitable choice for you.

PG and VG Characteristics

image representing the characteristics of VG

Understanding the unique properties of PG (propylene glycol) and VG (vegetable glycerine) is essential for any vaper looking to tailor their experience. Here's what you need to know about these two key components of vape juice:

1. Viscosity and Vapor Production:
- VG has a higher viscosity than PG. This means that a high concentration of VG results in thicker vape juice that can produce denser clouds. VG stands for vegetable glycerine, and it's known for creating a smoother throat hit.
- PG, on the other hand, is thinner and vaporizes at low temperatures. PG e-liquids are ideal for those seeking a sharper throat hit similar to traditional smoking. Plus, PG carries flavours more effectively, making high PG e-liquids popular among flavour chasers.

2. Throat Hit and Flavour Intensity:
- VG vs PG can be a matter of personal preference. If you're looking for a strong throat hit, you'll likely prefer an e-liquid with a higher PG content. However, if you're after large vapor clouds and a milder throat sensation, you'll enjoy an e-liquid with a high VG content.

3. Safety and Usage:
- Both PG and VG are considered safe for use in vape juices. Propylene glycol is a common food additive and is generally recognized as safe for consumption. VG is derived from plant oils and is also widely used in food and cosmetic products.
- In terms of device compatibility, VG's thickness means it works better with sub-ohm tanks and devices designed for higher wattages, while PG's lower viscosity is more suitable for smaller, lower-powered devices.

Ideal PG/VG Ratios

Having explored the characteristics of PG and VG, let's now focus on finding the ideal ratios of these ingredients to enhance your vaping experience. The best ratio for you depends on what you're looking for in a vape. A higher ratio of VG will produce larger clouds and a smoother throat hit, making it perfect if you're into cloud chasing or prefer a gentler inhalation.

If you're after a sharper throat hit and more intense flavour, then e-liquids with more PG might be your go-to. Using high PG e-liquids can also be beneficial if you're transitioning from smoking to vaping, as they mimic the sensation of smoking better. The ratio of PG and VG also influences how your vaping device performs. High PG blends are thinner and work well with smaller, less powerful devices.

For many vapers, the ideal PG/VG ratios strike a balance between flavour, throat hit, and vapor production. A 50/50 blend of PG and VG is quite popular because it offers a good throat hit while still producing a decent amount of vapor. However, if you enjoy experimenting, you might find your sweet spot with different levels of PG and VG.

Remember that e-liquids with high PG can be harsher on the throat, so if you find vaping uncomfortable, consider lowering the PG content. Conversely, if you're not getting enough flavour or throat hit, bump up the PG ratio. Ultimately, the ratio for the best vaping experience is subjective and may require a bit of trial and error. So, don't be afraid to try various combinations until you find the one that suits your preferences perfectly.

Equipment Compatibility

To ensure a smooth vaping experience, you'll need to match your e-liquid's PG/VG ratio with the appropriate equipment. If you're vaping high VG e-liquid, you're likely doing so for the denser vapor production and smoother throat hit. However, you might run into difficulties dealing with high VG because VG has a higher viscosity than PG. This means it's thicker, and not all vape kits can handle it efficiently.

Here are some factors to consider:

1. High VG Concentrations Work Best with sub-ohm kits designed for cloud chasing. These devices have larger wicking holes and coils that can absorb the thicker liquid, ensuring you don't get dry hits.

2. E-Liquids With More PG are thinner and vaporise at lower temperatures, which is ideal for higher-resistance coils found in mouth-to-lung (MTL) devices. These kits and vape pens emulate the sensation of smoking and are great if you're transitioning from cigarettes.

3. Use a Higher VG ratio if you prefer less throat hit and are into direct-lung (DL) vaping. However, remember that high VG e-liquids may require more power to vaporize, so make sure your device is capable of providing it.

When you're selecting vg in vape juice, consider the type of device you're using. High PG e-liquids work well with MTL setups, whereas high VG concentrations work best with powerful mods and sub-ohm tanks. Always check the manufacturer's recommendations for your specific kit to avoid issues like coil gunking or insufficient vapor production. Remember, the key to an enjoyable vaping experience is finding the right balance for your personal preferences and ensuring compatibility with your equipment.

Nicotine and Flavour Dynamics

When selecting your vape juice, the type of nicotine and flavours you choose play crucial roles in shaping your vaping experience. Understanding nicotine and flavour dynamics is essential because these elements affect both the intensity and the taste of your vapor. If you're after a throat hit that mimics traditional smoking, e-liquids with more PG are your go-to. PG vaporizes at low temperatures, delivering a sharper hit and carrying the flavour more effectively.

However, if you prefer a smoother inhale and larger vapor clouds, you'll want to use a higher VG content in your e-liquid. A high concentration of VG results in a liquid with a slightly sweet base. This sweetness can sometimes mute the sharpness of flavours, but it also means that the vapor produced is rich and dense. Keep in mind that VG is thicker than PG, so it requires more power to vaporize effectively.

E-liquids with high PG content are known for their ability to deliver flavours more intensely since PG vaporizes faster than VG. This means that the flavour hits your palate quickly and with more clarity. For a balanced experience, a blend of PG and VG is often recommended. This way, you can enjoy a satisfying throat hit, good flavour, and substantial vapor production.

Choosing Your E-Liquid Ratio

Understanding the interplay between nicotine and flavour helps you determine the ideal PG/VG balance that suits your vaping preferences and equipment. When you're picking out your e-liquid, the ratio of PG and VG is a critical factor that influences your experience. Here's what you need to consider:

1. Throat Hit vs. Cloud Production: If you're chasing a strong throat hit similar to traditional smoking, you'd lean towards high PG e-liquids, as PG stands for propylene glycol, which vaporizes faster than VG and delivers a more pronounced sensation. High pg ratio e-liquids also tend to carry flavour more effectively. However, if you're all about those thick, billowing clouds, a high concentration of VG is your best bet. VG stands for vegetable glycerine, and high VG e-liquid creates denser vapor due to its viscosity.

2. Wicking and Device Compatibility: The wicking properties of your vape's coil play a big role in handling the e-liquid. High VG juices are thicker and require a coil that can efficiently absorb the liquid without causing dry hits or damaging the coil. Ensure your device is compatible with a high VG ratio if that's your preference.

3. Personal Preference and Sensitivity: Some vapers find high PG e-liquids to be harsh or may even have a sensitivity to PG. In these cases, a higher VG content will provide a smoother vaping experience. Experimenting with different ratios can help you find your sweet spot for the best balance of flavour, throat hit, and vapor production.


As you navigate the sea of e-liquids, remember that VG and PG are your compass and sails, guiding the ship of your vaping journey. Like a skilled sailor who knows just how to harness the wind, mastering the PG/VG ratio lets you steer towards the horizon of your perfect vape. Whether you're after billowing clouds or intense flavour, finding your ideal mix is the key to unlocking a sea of satisfaction with every inhale. Set sail and find your sweet spot.

Frequently asked questions

What is VG and PG in vape juice?

VG stands for vegetable glycerine, and PG stands for propylene glycol. They are the two main ingredients in vape juice, with different properties and effects on vaping experience.

How do VG and PG affect vaping?

VG and PG have different viscosities and vapor production capabilities, affecting the throat hit, flavour intensity, and cloud production of the vape juice.

What is the VG to PG ratio in vape juice?

The VG to PG ratio in vape juice varies and can significantly impact the vaping experience. Different ratios cater to different preferences such as cloud production, flavour, and throat hit.

Is it safe to vape VG and PG?

VG and PG are generally recognized as safe for consumption by the FDA, but some individuals might have sensitivities to PG. It's important for users to be aware of their personal reactions to both substances.

What is the difference between VG and PG e-liquids?

VG-based e-liquids tend to produce more vapor and have a slightly sweet taste, while PG-based e-liquids offer a stronger throat hit and carry flavours more effectively.

Which is better, PG or VG in vaping?

The choice between PG and VG in vaping depends on individual preferences. Those who prioritize vapor production and smoothness may prefer VG, while those who prioritize throat hit and flavour intensity may prefer PG.

Can vaping high VG liquids cause any issues?

High VG liquids can be thicker and may not wick as effectively in some vape coils, leading to potential issues such as dry hits. It's important to use the appropriate vaping equipment for high VG liquids.

Is PG safe for vaping?

PG is considered safe for vaping and has been widely used in e-liquids for years. However, some users may experience mild sensitivities or allergic reactions to PG.

What happens if my vape coil can't handle high VG liquids?

Using high VG liquids with a vape coil that cannot handle its viscosity may result in dry hits, where the wick doesn't properly saturate with the e-liquid, leading to an unpleasant and burnt taste.

How does VG compare to PG in terms of wicking?

VG is thicker than PG and may not wick as effectively, especially in certain types of vape coils. This can lead to wicking issues and affect the vaping experience.