Why Does My Vape Crackle?


Attention, fellow vapers! Have you ever wondered why does your vape crackle? Well, wonder no more! In this blog, we will dive deep into the world of vape crackling to shed light on this common occurrence and unravel the secrets behind it.

Our mission is to empower vapers like you with knowledge and understanding. In this article, we aim to explore the reasons behind vape crackling and provide valuable insights for enthusiasts of all levels. Whether you are a seasoned vaper or just starting out, you’ll gain an understanding of what causes that mesmerising crackle and how it enhances your overall vaping experience.

Join us on this exciting journey of discovery as we delve into the science, the mechanics, and the factors that contribute to vape crackling. By the end, you’ll have a newfound appreciation for the auditory pleasure that accompanies your vaping sessions, and you’ll be equipped with helpful tips to optimise your enjoyment even further.

So, sit back, relax, and let’s embark on this fascinating exploration of vape crackling together!

Understanding Vape Crackling

Vape crackling refers to the delightful popping or crackling sound that occurs when you take a draw from your e-cigarette or vaporiser. It’s like music to your ears, creating an auditory experience that adds a whole new dimension to your vaping sessions.

Normalcy of Vape Crackling: Embrace the Harmonious Hiss

Rest assured, fellow vapers, vape crackling is usually a normal occurrence and experienced by many enthusiasts. It’s an inherent characteristic of the vaping process, stemming from the conversion of e-liquid into vapour. Soothing and comforting, vape crackling is a tell-tale sign that your device is functioning properly and delivering the desired vapour production.

Common Concerns and Misconceptions: Separating Fact from Fiction

Addressing concerns and debunking misconceptions surrounding vape crackling is crucial for a worry-free vaping experience. Let’s dispel a few common fears:

  1. Spitting or Leakage: Some vapers worry that crackling indicates spitting or leakage issues. While occasional spitting can occur, especially at higher wattages or with certain coil types, it is not a cause for alarm if it happens infrequently. Proper maintenance and using suitable coil resistances can minimise such occurrences.
  2. Safety Concerns: Vape crackling is generally safe and unrelated to any significant safety risks. It is the result of the interaction between e-liquid, heat, and the coil, rather than a sign of malfunction or danger.
  3. Contamination or Impurities: Crackling does not necessarily imply contamination or impurities in your e-liquid. High-quality e-liquids from reputable manufacturers undergo rigorous testing and are unlikely to be the cause of excessive crackling.

Understanding these facts will help you embrace vape crackling as part of the enchanting experience of vaping. So, sit back, inhale, and relish the symphony of crackling, knowing that it’s a common phenomenon enjoyed by countless vapers around the world.

Factors Contributing to Vape Crackling

E-Liquid Composition:

The composition of your e-liquid plays a significant role in the creation of those captivating vape crackles. Let’s explore the key factors:

  • PG/VG Ratio: Propylene glycol (PG) and vegetable glycerin (VG) are the primary base ingredients in e-liquid. A higher ratio of PG tends to produce more intense crackling due to its thinner consistency and higher vaporisation temperature. VG, on the other hand, with its thicker consistency, may produce softer crackling sounds. Experimenting with different PG/VG ratios can give you varying levels of crackle.
  • Flavourings and Additives: The inclusion of certain flavourings and additives in e-liquids can also contribute to vape crackling. Some ingredients, such as natural extracts or sweeteners, may contain higher moisture content, leading to more pronounced crackling when vaporised.
  • Nicotine Content: Although nicotine itself does not directly cause crackling, e-liquids with higher nicotine concentrations might produce more intense vaporisation, resulting in louder crackling sounds. Lower nicotine e-liquids may yield softer crackles.

Understanding the impact of these e-liquid composition factors will help you tailor your vaping experience to achieve the desired level of crackling sensation. Whether you prefer intense crackles or a more subtle symphony, experimenting with different e-liquids will allow you to find the perfect harmony for your taste buds and ears.

Impact of VG and PG

The composition of your e-liquid, specifically the ratios of propylene glycol (PG) and vegetable glycerin (VG), contributes to the unique soundscape of vape crackling. Let’s explore the impact of high VG and high PG e-liquids:

  1. High VG E-Liquids:

VG, or vegetable glycerin, is known for its thicker consistency and sweet taste. When it comes to vape crackling, high VG e-liquids tend to produce softer crackling sounds. This is partly due to VG’s higher vaporisation temperature and slower wicking properties.

The higher viscosity of VG may impede the rapid vaporisation process, resulting in gentler crackles. So, if you prefer a more mellow and smoother vaping experience with less pronounced crackling, opting for high VG e-liquids might be your best bet.

  1. High PG E-Liquids:

In contrast, propylene glycol (PG) has a thinner consistency and a stronger throat hit. E-liquids with a higher PG ratio tend to generate more intense crackling sounds. PG has a lower vaporisation temperature, allowing it to vaporise more quickly and create those satisfying pops and crackles.

If you crave a livelier and more pronounced crackling experience, choosing e-liquids with a higher PG concentration can provide the desired effect. However, keep in mind that higher PG ratios may also result in a stronger throat hit, so it’s important to find a balance that suits your preferences.

Finding the Perfect Balance:

Ultimately, the ideal e-liquid composition for vape crackling varies from person to person. Some vapers appreciate the soft whispers of high VG e-liquids, while others revel in the energetic symphony of high PG options. Experimentation is key to discovering your personal preference and striking the right balance between VG and PG ratios.

Viscosity and Coil Interaction

Viscosity refers to the thickness or consistency of a liquid, and it plays a critical role in the interaction between the e-liquid and the coil when producing sound in vaping devices. When e-liquid with a high viscosity is heated, it boils and vaporises slowly, leading to a weaker sound production in the process. This is because the high viscosity reduces e-liquid’s ability to travel up the wick and be evenly heated on the coil’s surface, resulting in less powerful sound production.

Moreover, the interaction between the e-liquid and the coil also plays a significant role in producing sound. When the hotter coil interacts with the e-liquid, it creates tiny vapour bubbles which then rapidly expand and collapse, producing a crackling or popping sound. In this process, the viscosity of the e-liquid affects how the liquid vaporises, and the coil’s temperature determines the amount of vapour created and the associated sound intensity. Thus, understanding how viscosity and the interaction between the e-liquid and the coil affect sound production can help vapers tailor their vaping experience to achieve the desired sound quality.

Coil Design and Material

The design and material of a coil can influence the crackling sound produced during vaping.

Coil Design:

The design of the coil, such as its shape, size, and number of wraps, can impact the vaporisation process and contribute to the production of the crackling sound. For example, twisted or braided coils offer more surface area for the e-liquid to vaporise, leading to an increase in vapour production and subsequently louder crackling sounds. Additionally, Clapton coils and other exotic coil types, with their unique configurations, exhibit a larger surface area and heating capabilities. This leads to more efficient vaporisation and sound production.

Coil Material:

The material composition of the coil can also influence the sound produced during vaping. Different coil materials possess varying levels of resistance to the current passing through them. Higher resistance coil materials like kanthal and nichrome have a lower heat output, leading to lower vapour production, and a softer crackling sound. In contrast, materials such as stainless steel and titanium tend to produce more heat and, as a result, deliver more vapour and stronger crackling sounds.

Role of Coil Resistance

Coil resistance refers to the amount of resistance the material of the coil offers to the flow of electrical current. Higher resistance coils require more power to heat up, producing more heat and vapour. Consequently, higher-resistance coils produce more intense crackling sounds due to the increased vaporisation of the e-liquid. Lower-resistance coils produce less vapour and have weaker crackling sounds.

Effect of Coil Type and Build-up

Coil Type:

The type of coil used also affects the sound produced by vaping. For example, Clapton coils, which consist of a thin wire coiled around a thicker wire, produce stronger and more distinct crackling sounds than regular round coils. This is because Clapton coils have a larger surface area, which heats up more evenly and produces a more voluminous amount of vapour. Similarly, exotic limited-edition coils such as the Alien, Juggernaut, and Framed Staple can deliver a more impressive and satisfying sound and vapour production.

Coil Build-up:

Coil build-up refers to the process of wrapping the coil to create a specific configuration that determines its performance. With varying coil builds come different levels of heat production. For instance, complex coil builds like multi-strand twisted coils allow for multiple points of vaporisation, generating more intense sound production. Furthermore, the type of wick material used can also impact sound production, with cotton wicks producing more crackling sounds than other wick types.

Wattage and Power Settings

The wattage and power settings of a vaping device can significantly impact the intensity of vape crackling. The following are some of the ways in which wattage and power settings could affect crackling:

  1. Low Wattage Settings: Low wattage settings can lead to poor vaporisation and a lack of sufficient heat to vaporise the e-liquid. This lack of heat can cause excess liquid to accumulate in the coil and produce a weaker, gurgling sound, instead of a satisfying crackling sound.
  2. High Wattage Settings: While high wattage settings can produce a more intense crackling sound, they should not exceed the recommended wattage range for the device, as the heat produced can lead to unpleasant harshness and even dry hits that could damage the coil or the device
  3. Sub-Ohm Vaping: Sub-ohm vaping with a higher wattage device can lead to an increase in overall vapour production, leading to louder crackling sounds. However, a lack of sufficient airflow in sub-ohm setups can lead to over-saturation of e-liquids, causing the liquid to pool and spit out, rather than vaporise, leading to unpleasant sounds, and reduced performance

Relationship between Wattage and Crackling

There is a relationship between higher wattage and increased crackling sounds in vaping. When the wattage is higher, the e-liquid is vaporised at a faster rate, causing larger and more significant bubbles to form in the e-liquid due to rapid expansion. When these bubbles burst, they produce a popping or crackling sound.

However, it is important to note that while a higher wattage can lead to a more intense crackling sound, it must be within the recommended wattage range for the specific device used. If the wattage is too high and exceeds the device’s capability, it could cause dry hits or other issues that would lead to a burnt taste and risk damaging the coil or device.

The relationship between wattage and crackling sounds is that higher wattage can lead to more intense crackling sounds due to more significant and rapid bubble formation. It is essential to avoid exceeding the recommended wattage range to prevent any damage to the device or compromise the vape experience.

Airflow and Vaporisation

Airflow settings and the efficiency of vaporisation play significant roles in contributing to vape crackling. Here’s how they are related:

Airflow Settings:

  1. Increased Airflow: Higher airflow settings can contribute to increased crackling sounds. When there is more air flowing through the coil, it helps in maintaining optimal temperatures and preventing excess liquid from accumulating in the coil. This allows for more efficient vaporisation of the e-liquid, resulting in larger vapour clouds and louder crackling sounds.
  2. Restricted Airflow: On the other hand, restricted airflow settings can lead to reduced vaporisation efficiency. When the airflow is restricted, the e-liquid stays in contact with the coil for a longer period. This prolonged heating can cause the e-liquid to boil and produce more pronounced crackling sounds. However, if the airflow is too restricted or airflow holes are mostly blocked, it may interrupt the vaporisation process and result in a harsh or burnt taste.

Efficiency of Vaporisation:

  1. Efficient Vaporisation: Efficient vaporisation, achieved through proper wattage, temperature control, and suitable coil design, promotes the production of quality vapour clouds and a satisfying crackling sound. When the e-liquid is effectively vaporised, it results in the smooth conversion of the liquid to vapour, maximising both flavour and crackling sound production.
  2. Inefficient Vaporisation: Inefficient vaporisation, caused by factors like low wattage or poor coil design, can lead to inadequate heat transfer to the e-liquid. This can cause excess liquid to accumulate and flood the coil, leading to gurgling sounds or reduced crackling sounds.

Airflow settings and the efficiency of vaporisation play crucial roles in vape crackling. Proper airflow helps in maintaining optimal temperatures and preventing liquid accumulation, resulting in larger vapour clouds and louder crackling sounds. Efficient vaporisation ensures the smooth conversion of e-liquid to vapour, maximising both flavour and crackling sound production.

Condensation and Temperature

Condensation build-up and temperature changes during vaping can contribute to crackling sounds. Here’s how these factors are related:

  1. Condensation Build-up: When vaping, the warm vapour travels through the airflow system and comes into contact with cooler surfaces, such as the chimney or mouthpiece. This temperature difference can cause the vapour to condense into liquid droplets, leading to condensation buildup. When condensation accumulates in the airflow system or the chimney, it can obstruct the airflow and create blockages. As a result, when you take a drag, the vapour has to pass through these dampened pathways, causing the accumulated liquid to sizzle and crackle.
  2. Temperature Changes: Temperature changes can also contribute to crackling sounds. When the coil is heated rapidly, it can cause localised temperature variations. These temperature changes can result in e-liquid getting heated unevenly, leading to intermittent boiling or rapid vaporisation. The sudden vaporisation of e-liquid can create small explosions known as “hot spots,” which produce crackling sounds.

Condensation build-up occurs when warm vapour meets cooler surfaces, causing the vapour to condense into liquid droplets. This accumulated liquid can lead to blockages in the airflow system, resulting in crackling sounds. Additionally, temperature changes in the coil can cause uneven vaporisation, resulting in intermittent boiling and crackling sounds during vaping.

E-Liquid Saturation and Priming

Proper e-liquid saturation and coil priming are essential in minimising excessive crackling. Here’s why:

  1. E-liquid Saturation: Ensuring that the wick is adequately saturated with e-liquid is necessary to achieve a smooth, uninterrupted vaping experience. Incomplete e-liquid saturation or low juice levels can starve the coil of the necessary lubrication and cause it to burn your juice. When there isn’t enough e-liquid to create the vapour, you may hear the coil crackling or pop, alerting you to add more e-liquid to the tank. Adding enough e-liquid to saturate the wick before vaping ensures that it is adequately lubricated and promotes consistent vapour production, which minimises the popping and crackling sounds.
  2. Coil Priming: Priming the coil is an essential step before using a new or dry coil. Priming ensures that the wick is fully saturated with e-liquid when you begin vaping and minimises the instances of a dry hit or burnt taste. When a dry wick is heated, the material oxidises and leads to a burnt taste. A deliberately primed coil provides adequate e-liquid to the wick, significantly reducing the chance of dry or burnt hits during your vaping experience.

Proper e-liquid saturation and coil priming ensure that the wick is adequately saturated with e-liquid, promoting smooth and consistent vapour production. Proper e-liquid saturation helps prevent the coil from burning out and causing excessive crackling sounds. Adequately priming the coil minimises the incidence of dry or burnt hits that can also produce crackling sounds.

Tips for Managing Vape Crackling

Regular Maintenance and Cleaning:

Regular cleaning and maintenance of your vaping device is essential to minimise vape crackling and ensure an optimal vaping experience. Here’s why you should prioritise cleaning the tank, replacing coils when necessary, and maintaining proper airflow:

  1. Cleaning the Tank: Regularly cleaning the tank is necessary to remove any e-liquid residue and build-up that may be affecting the performance of your device. Over time, residue can accumulate inside the tank, affecting the quality and taste of your vapour. This build-up can also lead to blockages in the airflow or interfere with the functioning of the coil, resulting in crackling sounds. Regularly cleaning the tank ensures that it remains free from debris or residue that could impact the vaping experience.
  2. Replacing Coils: Coils have a finite lifespan and can degrade over time. Worn-out or damaged coils can cause suboptimal vaporisation, leading to excessive crackling and reduced flavour. Regularly replacing coils, especially when you notice a decline in performance or flavour, helps maintain optimal vapour production and minimises crackling sounds. Fresh coils ensure proper heating and efficient vaporisation of e-liquid, enhancing the overall vaping experience.
  3. Maintaining Proper Airflow: Proper airflow is essential for a smooth and consistent vaping experience. Restricted or blocked airflow can lead to poor vaporisation, e-liquid accumulation, and ultimately, excessive crackling sounds. Regularly checking and adjusting airflow settings to ensure they are free from obstruction can help minimise the crackling sounds. By keeping the airflow system clean and free from debris, you can make sure that the vapour production is smooth and optimal.

Clean your tank regularly to remove residue build-up, replace coils when necessary to maintain optimal vaporisation, and maintain proper airflow to ensure smooth vapour production. By implementing these maintenance practices, you can reduce crackling and maintain the performance and flavour of your vape. .

Adjusting Power Settings:

Experimenting with different wattage and power settings on your vaping device can help you find a balance that reduces excessive crackling. Here’s why:

  1. Impact on Vapour Production: The wattage and power settings of your vaping device directly impact vapour production. Not using enough power or wattage can result in insufficient vapour and lead to increased crackling sounds. In contrast, using too much power or wattage can cause the coil to overheat, leading to burnt hits and ultimately damaging the coil. Therefore, finding the right balance in your settings is essential to minimise crackling.
  2. Effect on E-liquid Saturation: The wattage and power settings also impact e-liquid saturation, leading to either an efficient or inefficient wicking process. With low wattage or power settings, e-liquid saturation may suffer, leading to insufficient e-liquid reaching the coil. This issue eventually causes the coil to overwork, leading to crackling sounds. The opposite also holds high wattage or power settings lead to excessive e-liquid saturation, leading to e-liquid flooding, and more considerable crackling sounds.
  3. Personal Preferences: Finally, everyone’s vaping preferences differ, so experiment with different wattage and power settings to find the perfect balance that offers you a pleasurable vaping experience. Play around with different settings and gradually increase power or wattage levels to see how it impacts your vape. The ideal setting should provide adequate vapour production and a satisfying flavour while minimising crackling sounds.

Experiment with different wattage and power settings on your vaping device to find the right balance that minimises excessive crackling. The right balance should provide efficient vapour production, proper e-liquid saturation, and a pleasurable vaping experience.

E-Liquid Selection:

Trying out different e-liquid compositions can help vapers find the one that produces less crackling. Here’s why:

  1. PG vs. VG: Propylene Glycol (PG) and Vegetable Glycerine (VG) are the two most common base liquids used in e-liquids. PG produces a more robust throat hit and provides better flavour, while VG offers a smoother hit with bigger clouds. However, PG is a thinner liquid than VG, leading to faster wicking, which can sometimes lead to decreased crackling. VG is a thicker liquid and can take longer to wick properly causing more significant crackling. Therefore, by experimenting with a different ratio of PG to VG, you may optimise the vaping experience and minimise crackling.
  2. Nicotine Strength: Nicotine strength can influence the vaping experience and cause crackling sounds. High nicotine strengths create more significant vapour production, which leads to more crackling sounds. On the flip side, low nicotine strengths produce less vapour, leading to weaker crackling noises. Accordingly, try different nicotine strength levels to find the one that offers a pleasurable vaping experience, with less crackling.
  3. Flavours Addition: The addition of flavours to e-liquid is the perfect way to personalise your vaping experience. But different flavourings have different weights and molecular structures that can impact a vape’s performance and lead to excessive crackling. Certain flavourings, especially complex ones with high sugar concentrations, can clog the wick and reduce the device’s efficiency, leading to excessive crackling. Experiment with different flavourings to find ones that produce less crackling.

Trying out different e-liquid compositions, such as varying the ratio of PG to VG, nicotine strength, and flavour additions can help vapers find the one that produces less crackling. With the right e-liquid composition, you can optimise your vaping experience and minimise excessive crackling sounds.

Proper Vaping Technique:

Proper inhaling techniques can indeed play a role in minimising vape crackling. Here’s why:

  1. Draw Technique: The way you draw or inhale from your vaping device can impact the amount of crackling you experience. If you draw too forcefully, the increased airflow can cause excessive vapour production and potentially lead to more pronounced crackling sounds. On the other hand, if you draw too softly, you may not generate enough airflow for optimal vaporisation, leading to insufficient vapour and potential gurgling noises. Finding the right balance and drawing technique is important to minimise crackling.
  2. Slow and Steady: Taking slow and steady draws can help reduce the intensity of crackling sounds. By inhaling at a measured pace, you allow the e-liquid to properly vaporise, ensuring a smoother vapour production with less pop and crackle. Rapid or forceful inhales can disrupt the vaporisation process and potentially cause more crackling sounds. So, aim for relaxed and controlled inhalation.
  3. Priming the Coil: Properly priming the coil before using a new coil or replacing an old one can also contribute to minimising crackling sounds. Priming involves saturating the coil with e-liquid before use to ensure even heating and prevent dry hits or insufficient e-liquid flow. By priming the coil adequately and allowing it to soak for a sufficient amount of time, you can help minimise crackling sounds that may occur due to inadequate e-liquid saturation.
  4. Temperature Control: Some vaping devices and coils offer temperature control options. By setting an appropriate temperature within the recommended range for your specific device and coil, you can help minimise excessive crackling. Temperature control ensures that the coil doesn’t overheat, reducing the likelihood of burnt hits or rapid vaporisation that can lead to intense crackling sounds.

Adopting proper inhaling techniques, such as finding the right draw technique, taking slow and steady draws, properly priming the coil, and utilising temperature control if available, can contribute to minimising vape crackling. Experimenting with these techniques can help you achieve a smoother and more enjoyable vaping experience.


Please be reassured that vape crackling is generally a normal occurrence and not a cause for major concern. It is a common phenomenon that can happen due to various factors such as the composition of the e-liquid, the device used, and the inhaling technique. It does not necessarily indicate a problem or defect in your vaping device.

However, we understand that continuous or excessive crackling sounds can disrupt your vaping experience. Therefore, we encourage you to understand the contributing factors of vape crackling and apply some of the suggested tips discussed in this conversation to manage it effectively. For instance, properly priming the coil, employing temperature control if available, or experimenting with different e-liquid compositions, such as adjusting the ratio of PG to VG, or trying different nicotine strengths and flavourings can help reduce or eliminate crackling noises.

We hope that this information helps you to better understand and manage vape crackling. Happy vaping!


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