WHY IS MY VAPE BUBBLING WHEN I INHALE? UNRAVELLING THE MYSTERY!

*2025 Update - Looking for an alternative to disposable vapes? With the disposable vape ban due to come into effect from June 2025, disposable vape users will need to find an alternative - so check out the SMOKO VAPE MAX! Designed to look like your favourite disposable but uses rechargeable batteries and pods filled here in the UK with our great-tasting UK-made e-liquid!

Key Takeaways

• Bubbling in a vape device can be caused by a variety of issues including increased airflow, or it could indicate too much e-liquid getting in an around the coil, or not enough power to vaporise the amount of e-liquid.
• The bubbling or popping of e-liquid can lead to hot vape juice getting into the mouthpiece.
• Blowing into the mouthpiece may help clear the airway, but with sealed disposable vapes this may not solve the issue.

Why Is My Vape Bubbling When I Inhale?

Why Is My Disposable Vape Bubbling When I Inhale?

When your disposable vape starts bubbling as you inhale, it could signal a few potential issues, including the presence of air bubbles. Firstly, excessive condensation or e-liquid buildup in the mouthpiece or airflow system might be causing the bubbling sensation. This buildup can occur due to improper storage or handling of the device. Additionally, a flooded heating coil or wick could be causing excess e-liquid to vaporise, leading to bubbling sounds. Another possibility is a malfunctioning airflow sensor or a damaged cartridge, which can disrupt the airflow and cause irregular vapour production. To troubleshoot this issue, try gently blowing through the mouthpiece to clear any excess liquid or debris. If the problem persists, it might be time to replace the disposable vape cartridge or seek professional assistance.

What Are E-Cigarettes?

E-cigarettes, short for electronic cigarettes, are devices designed to deliver nicotine to users through inhalation. They work by heating a liquid solution (often called e-liquid or vape juice) into an aerosol, which the user then inhales. E-cigarettes typically consist of an internal battery, a heating element (atomizer or coil), and a cartridge or tank to hold the e-liquid. The e-liquid usually contains nicotine derived from tobacco, propylene glycol and vegetable glycerine, and is available in a wide range of flavours. E-cigarettes come in various shapes and sizes, from sleek pens to larger, more customisable mods.

They gained popularity as an alternative to traditional tobacco cigarettes and are often used by individuals seeking to reduce or quit smoking. However, it's essential to note that while e-cigarettes may carry fewer health risks than traditional cigarettes, they are not risk-free and can still pose health concerns, particularly for non-smokers and young people.

What Are Disposable Vapes?

Disposable vape pens are compact, pre-filled devices that come pre-filled with e-liquid and are intended for one-time use. Unlike traditional e-cigarettes, which often require separate purchases of e-liquid, periodic recharging of batteries, and the use of vape tanks, disposable vapes offer a convenient and hassle-free vaping experience. They typically feature a sleek, lightweight design with built-in batteries, heating coil, and a sealed e-liquid reservoir. Disposable vape devices are available in various flavours and nicotine strengths, catering to different preferences and needs. Once the e-liquid is depleted or the battery is exhausted, users simply dispose of the entire device, eliminating the need for maintenance or refills. While disposable vapes offer convenience and portability, they are not rechargeable or refillable, making them less cost-effective in the long run compared to rechargeable vaping devices.

What Is in a Disposable Vape?

Disposable E-Cigs typically contain several key components essential for its function. Firstly, there’s the battery, which powers the device and activates the heating element. This heating element, often referred to as the coil, is responsible for vaporizing the e-liquid. An air bubble can sometimes form around the heating element, causing disruptions in the vaping experience.

Speaking of e-liquid, it’s the next crucial component and consists of a mixture of ingredients such as propylene glycol (PG), vegetable glycerine (VG), nicotine (optional), and flavourings. The specific formulation may vary depending on the brand and flavour chosen. Additionally, disposable vapes feature a cartridge or tank to hold the e-liquid, as well as a mouthpiece through which the user inhales the vapour. These components work together seamlessly to deliver a satisfying vaping experience in a compact and convenient form.

How Long Does a Disposable Vape Last?

The lifespan of a disposable vape depends on various factors, including usage frequency, puff duration, and battery capacity. On average, a disposable vape can last anywhere from a few days to a couple of weeks, or even longer for light users. However, heavy users may find that a disposable vape lasts only a day or two before the e-liquid is depleted or the battery runs out. The advertised number of puffs per device provided by the disposable vape can also give an indication of its lifespan, but individual usage patterns will ultimately determine how long it lasts. In the UK, the maximum disposable vape tank size is 2ml of vape juice, providing up to 600 puffs per device. Once the e-liquid is exhausted or the battery dies, the disposable vape is typically discarded, as they are not designed for refilling or recharging. It's essential to dispose of used disposable vapes responsibly, following proper recycling guidelines to minimise environmental impact.

While many disposable nicotine vapes indicate they contain no more than 2ml here in the UK, testing conducted by the Daily Mail and British American Tobacco (BAT) (1) found that many disposable brands on the shelves in supermarkets across the UK contained more than the legal maximum of 2ml of vape juice (2). With these disposables containing the incorrect e-liquid amount, and concerns about the increase in youth vaping and the impact of nicotine on the developing brains of youngsters, it is little wonder that UK authorities are planning to implement a disposable vape ban in 2025.

How to Fix Gurgling Disposable Vape?

Fixing a gurgling pen can often be achieved through a few simple troubleshooting steps. Firstly, try removing the mouthpiece and tapping the device gently on a tissue to remove any excess e-liquid or moisture. This can help alleviate any flooding or condensation build-up that might be causing the gurgling sound. Next, ensure that the device’s airflow vents are clear and unobstructed, as restricted airflow can contribute to gurgling issues. If the gurgling persists, try taking slower and gentler inhales to prevent flooding the heating coil with e-liquid. Additionally, if the device has adjustable airflow settings, experiment with different airflow levels to find the optimal setting for your vaping style. If these steps don’t resolve the gurgling problem, it may indicate a more significant issue with the device, such as a faulty coil or cartridge, in which case, it may be best to replace the device altogether.

Why Are Disposable Vapes So Strong?

Disposable vapes often deliver a stronger sensation compared to traditional cigarettes or even some rechargeable vaping devices for several reasons. Firstly, disposable brands typically contain a higher concentration of nicotine in their e-liquid formulations, providing a more potent nicotine hit with each puff, however in the UK the maximum strength is a 20mg salt nicotine e-liquid. Moreover, disposable vapes often feature a fixed wattage output, ensuring consistent vapour production and nicotine delivery, which can contribute to the perception of strength. Furthermore, the compact size and disposability of these devices encourage users to take shorter, more frequent puffs, further intensifying the overall vaping experience. However, it's essential to use disposable vapes responsibly and be mindful of nicotine intake, especially for individuals sensitive to nicotine or those trying to manage their nicotine consumption.

How Does The Vaping Experience Change When Using Nic Salt E-liquid?

The vaping experience can notably change when using nicotine salt (nic salt) e-liquid compared to traditional freebase nicotine e-liquid. Nicotine salt e-liquids typically contain nicotine in a different chemical composition, resulting in a smooth throat hit and higher nicotine absorption into the bloodstream. This can provide a more satisfying experience for users seeking a stronger nicotine sensation, making nic salt e-liquids particularly appealing to heavy smokers or individuals craving a more potent nicotine delivery. Freebase nicotine e-liquids provide more intense throat hits that can be preferable for smokers seeking a real smoking sensation. However, it's essential to use nic salt e-liquids responsibly and be mindful of nicotine intake, as their higher nicotine content and lack of throat hit can increase the risk of nicotine dependence and adverse health effects, particularly for non-smokers and underage users.

Can You Recharge A Disposable Vape?

No, disposable vapes are designed for single-use and typically do not contain a rechargeable battery, however we are seeing some rechargeable disposables enter the vape market. Unlike rechargeable vaping devices, which feature replaceable batteries or USB charging ports, disposable vapes are intended to be used until the e-liquid is depleted or the battery runs out. Once a disposable vape has been used, it is typically discarded, and a new one must be purchased to continue vaping. Attempting to recharge a disposable vape can potentially damage the device or pose safety risks, as they are not designed to handle recharging cycles. Therefore, it is not recommended to try recharging disposable vapes, and users should follow the manufacturer's instructions for proper disposal after use.

Can You Buy Nicotine Free Disposable Vapes?

Yes, it is possible to purchase nicotine-free disposable vapes. Many manufacturers offer a variety of e-liquid options, including nicotine-free or "zero nicotine" formulations, to cater to individuals who prefer to vape without nicotine or are looking to gradually reduce their nicotine intake. These nicotine-free disposable vape pens contain the same basic components as their nicotine-containing counterparts, such as a battery, heating element, and e-liquid reservoir, but without the addition of nicotine. This allows users to enjoy the sensory experience of vaping without the addictive properties of nicotine. However, it's essential to check the product description or packaging to ensure that the disposable vape you're purchasing is indeed nicotine-free!

The Problems with Disposable Vapes

Single use vapes, while convenient and easy to use, come with their fair share of drawbacks and potential problems.

1. One significant issue is their environmental impact (3), as the single-use nature of disposable vape kits contributes to electronic waste accumulation.
2. Additionally, the lack of regulation and oversight in the disposable vape market can lead to inconsistencies in quality and safety standards, raising concerns about product reliability and potential health risks.
3. Furthermore, disposable vapes may be more expensive in the long run compared to rechargeable vaping devices, as users need to frequently purchase new disposable units rather than refilling or replacing parts.
4. Another common problem with disposable vapes is the limited flavour options and nicotine strengths available compared to refillable systems, which may not cater to the diverse preferences of all vapers. 

A major concern for authorities is the number of disposable vapes being thrown away. It is estimated that 5 million disposables are thrown away each week in the UK (4)and with the sealed nature of the units making it challenging to recycle properly, many of these are ending up in landfill. This is problematic as parts like the lithium-ion battery could be recycled but are instead becoming a fire hazard at waste management sites (5), leading to increased fire detection equipment being required at these locations. This could see an increase in local council tax to pay for the increased cost of single-use vape disposal. 

Is A Disposable Vape Ban Planned For The UK?

The UK government has implemented various measures to regulate vaping products, such as restrictions on advertising and sales to minors, as well as limits on nicotine content and product labeling requirements. While single use vapes currently remain legal for sale in the UK, a disposable vape ban (6) has been announced and is due to come into effect in 2025. This ban is down to several factors - including the increase in youth vaping, many disposable vape brands failing to adhere to the UK regulations, as well as the environmental impact of millions of disposable nicotine vapes being thrown away each week in the UK.

The Advantages of a Non Disposable Vape

The advantages of a non-disposable vape, such as a rechargeable or refillable device, are manifold. Firstly, they offer greater cost-effectiveness over time, as users can simply refill the e-liquid tank or replace heating coils as needed, rather than continuously purchasing new disposable units. This not only reduces long-term expenses but also minimises electronic waste and environmental impact. Additionally, rechargeable vape kits provide more versatility and customisation options, allowing users to adjust factors like wattage, airflow, and e-liquid flavour to suit their preferences. They also offer a wider range of e-liquid flavours and nicotine strengths, catering to diverse tastes and needs. Moreover, non-disposable vapes typically deliver a more consistent and reliable vaping experience, with higher-quality construction and performance compared to disposable devices. Lastly, many non-disposable vapes feature larger battery capacities, longer battery life, and faster charging times, ensuring extended vaping sessions without the inconvenience of frequent recharges. Overall, non-disposable vapes offer greater flexibility, affordability, and sustainability compared to their disposable counterparts.

The Best Vape Pods UK

Determining the best pod vapes in the UK involves considering several factors, including performance, flavour options, reliability, and user experience. Currently, some of the top contenders in the UK market include brands like JUUL, SMOK, Vaporesso, and Innokin, known for their high-quality pod systems. JUUL stands out for its sleek design, simplicity, and wide availability of pre-filled pods with various nicotine strengths. SMOK offers a range of pod systems with adjustable airflow and wattage settings, catering to both beginner and experienced vapers. Vaporesso's pod systems are praised for their innovative features, such as adjustable airflow, customisable wattage, and compatibility with a wide range of e-liquids. Innokin's pod systems are lauded for their durability, long battery life, and superior flavour delivery. Ultimately, the best vape pods in the UK depend on individual preferences, with each brand offering unique features and benefits to suit different vaping styles and needs.

The SMOKO VAPE POD, our pre-filled pod system, is sleek and discreet with a wide range of flavours and nicotine strengths available. It uses rechargeable batteries and customers can take advantage of our free refill recycling program to vape in the most eco-friendly way!

Do E-Cigarettes Help Smokers Quit?

The efficacy of E-Cigarettes in helping smokers quit is a topic of ongoing debate and research. While some studies suggest that E-Cigarettes can be a useful tool for smoking cessation, others raise concerns about their long-term effectiveness and potential health risks. Proponents argue that E-Cigarettes provide an alternative nicotine delivery method that mimics the ritualistic and sensory aspects of smoking, making it easier for smokers to transition away from combustible tobacco products.

Even though Public Health England's review of evidence indicates that E-Cigarettes are at least 95% less harmful than smoking, Action on Smoking and Health (ASH) conducted a study that found about 40% of smokers believe that vaping is as harmful, or even more so, than smoking.  Additionally, e-cigarettes offer a wide range of nicotine strengths and flavours, allowing users to gradually reduce their nicotine intake or satisfy cravings without the harmful chemicals found in traditional cigarettes. Ultimately, while some individuals may find success in quitting smoking with the help of E-Cigarettes, it's essential to approach their use with caution and in conjunction with evidence-based cessation methods and support programs.

Why Is My Vape Bubbling When I Hit It? Unravelling the Mystery - Conclusion

Most vapers are likely to experience a bubbling vape at some point on their vaping journey, but it shouldn't keep you from vaping too long!

The great thing about choosing a pre-filled pod rechargeable vape kit, like the SMOKO E-Cigarette or the SMOKO VAPE POD, is that any bubbling is due to a little e-liquid making it's way into the chimney of the refill and can be addressed by removing the e-liquid cartridges and just blowing through the refill while dabbing the connecting end of the refill with tissue paper. Then just pop the refill back on the battery and continue vaping as normal! 

*2025 Update - Check out the SMOKO VAPE MAX starter kit deals! A disposable vape style device that uses rechargeable batteries and prefilled pods containing our great UK-made liquids!

If you are a smoker looking to quit, then consider making the switch to vaping. Public Health England's evidence reviews indicate that vaping is a less harmful alternative to cigarettes, delivering nicotine in a similar hand-to-mouth and inhale action that smokers are used to, which may help to explain why Cochrane, in the largest study on the topic to-date, found high-certainty evidence that E-Cigarettes are more effective for quitting compared with traditional forms of nicotine replacement therapy, including nicotine patches and nicotine gum.

Don't wait - make the switch with SMOKO today!

FAQ: Why Is My Vape Bubbling When I Inhale?

Q1: Is bubbling normal when I vape?
A: A little bubbling or crackling sound is completely normal—it’s just the sound of e-liquid being vaporised on the coil. However, if it’s loud, persistent, or comes with spitting, something may be off.

Q2: What causes excessive bubbling?
A: Common reasons include:

• Flooded coil (too much e-liquid saturating the wick)

• Overfilling the tank or drawing too hard

• Condensation build-up inside the mouthpiece

• Low power settings that don’t fully vaporise the liquid

• A worn-out or faulty coil

Q3: How can I fix it?
A: Try the following quick fixes:

• Gently flick the device to remove excess liquid from the coil

• Wipe the mouthpiece and inside the chamber

• Increase wattage slightly (within safe range for your coil)

• Take shorter, gentler puffs

• If bubbling continues, replace the coil or pod

Q4: Is bubbling harmful?
A: Bubbling itself isn’t dangerous, but it can lead to spitback—hot droplets of e-liquid in your mouth—which is unpleasant. Keeping your device clean and properly maintained prevents this.

Q5: Do some vapes bubble more than others?
A: Yes. Open-tank and refillable devices are more prone to bubbling, especially when overfilled. Closed pod systems (like SMOKO’s) are designed to minimise these issues with better airflow and leak-resistant designs.

REFERENCES

(1) Leaked BAT testing data claims nearly all major disposable vaping brands contain illegal levels of e-liquid

(2) Daily Mail article on the response from disposable vape brands containing illegal levels of e-liquid

(3) Government Impact Assessment on disposable vape waste management

(4) Number of disposable single-use vapes thrown away have in a year quadrupled to 5 million per week

(5) Single-use vapes sparking surge in fires at UK waste plants

(6) Press release: Disposable vapes banned to protect children's health

(7) Four in ten smokers wrongly believe that vaping is as or more harmful as smoking

ABOUT THE AUTHOR

Written by Dan Overgage

Dan Overgage is a former smoker of 10 years until he became a client of SMOKO E-Cigarettes.  Dan started working with SMOKO 5 years ago after successfully quitting using our e-cigarettes and works across our Customer Service and heads up our content creation and research with a strong focus on all things quitting smoking.  During his tenure with SMOKO, Dan has written countless blogs and consults with countless clients every day to help them to stay smoke-free.

Last updated 31/07/2025