Table of Contents
- Introduction
- Understanding Your Inhalation Technique
- The Role of PG/VG Ratios
- Nicotine Strength and Type
- Coil Condition and Priming
- Wattage and Temperature Settings
- Airflow Management
- Dehydration and "Vaper's Tongue"
- Battery Safety for High-Powered Devices
- Maintaining Your Device
- Conclusion
- FAQ
Introduction
Experiencing a persistent cough while vaping is one of the most common hurdles for both new and experienced vapers. While it can be frustrating and uncomfortable, this reaction is usually a signal that something in your setup or technique needs adjustment. At Vapor Authority, we have helped thousands of customers fine-tune their experience to ensure it is as smooth and enjoyable as possible.
Understanding why your device is causing irritation requires a look at several factors, from the specific ingredients in your e-liquid to the mechanical settings of your hardware. By identifying the root cause, you can make simple changes to your routine and equipment. This guide will break down the primary reasons for "vaper’s cough" and provide practical solutions to help you achieve a more consistent and comfortable draw.
Warning: This content is intended for adults of legal vaping age only. Vaping products contain nicotine, which is an addictive chemical. These products are not intended for use by minors, non-smokers, pregnant or breastfeeding women, people with heart conditions, high blood pressure, or asthma. Consult a physician if you have concerns about whether vaping products are appropriate for you.
Understanding Your Inhalation Technique
One of the most frequent causes of coughing, especially for those transitioning to vaping, is using an incorrect inhalation technique for the specific device being used. Vaping hardware is generally designed for one of two primary styles: Mouth-to-Lung (MTL) or Direct-to-Lung (DTL).
Mouth-to-Lung (MTL) Vaping
MTL vaping is a two-step process where you draw the vapor into your mouth, hold it for a brief moment, and then inhale it into your lungs. This style is very similar to how one might use a traditional straw. MTL devices typically have a tighter draw and use higher-resistance coils (above 1.0 ohm). If you try to take a massive, deep breath directly into your lungs using an MTL device, the concentrated vapor and tight airflow can easily trigger a cough.
A compact MTL vape pen starter kit is typically designed around this style, although some devices support both MTL and DTL use.
Direct-to-Lung (DTL) Vaping
DTL vaping, often referred to as "sub-ohm" vaping, involves inhaling the vapor directly into the lungs in one steady breath. These devices have wide-open airflow and use low-resistance coils (below 1.0 ohm). If you attempt to use an MTL "two-step" inhale on a powerful DTL device, the vapor can become too hot while sitting in your mouth, or you may not provide enough airflow to cool the coil, leading to a harsh hit that causes coughing.
A sub-ohm tank is generally built for this type of draw and uses different airflow and wattage requirements than a compact pen.
Matching your technique to your device is the first step in troubleshooting. If you are using a compact pod system, stick to MTL. If you are using a large box mod with a sub-ohm tank, switch to a DTL "deep breath" style. You can compare different starter kit configurations to find hardware that matches your preferred inhalation style.
The Role of PG/VG Ratios
The composition of your e-liquid plays a massive role in how the vapor feels in your throat. Every e-liquid is made from a base of Propylene Glycol (PG) and Vegetable Glycerin (VG).
- Propylene Glycol (PG): This is a thin, odorless liquid that carries flavor effectively. It is also responsible for the "throat hit"—that slight stinging or tingling sensation in the back of the throat.
- Vegetable Glycerin (VG): This is a thicker, sweet-tasting liquid that produces large vapor clouds. It is much smoother on the throat than PG.
If your vape pen is making you cough, you may be using an e-liquid with a PG content that is too high for your sensitivity level. A "high-PG" liquid (such as a 70% PG / 30% VG blend) provides a very sharp throat hit. Most modern vapers prefer a "high-VG" blend (such as 70% VG / 30% PG) because it is significantly smoother.
We ensure that all e-liquids carried by Vapor Authority are US-made and use high-quality ingredients, but the ratio itself is a matter of personal preference and hardware compatibility. If you find your current juice too scratchy, try switching to a blend with a higher VG percentage. Browse e-liquid options to compare available flavor profiles and formulations.
Nicotine Strength and Type
Nicotine is a natural irritant, and the amount—and type—you use can be the primary culprit behind a harsh cough.
Freebase Nicotine
Standard or "freebase" nicotine is the traditional form of nicotine used in e-liquids. While effective, it becomes increasingly harsh as the concentration increases. For most people, freebase nicotine at 12mg or 18mg strength produces a very intense throat hit. If you are using a high-wattage device with 6mg or 12mg freebase nicotine, the sheer volume of vapor combined with the nicotine's alkalinity can easily cause coughing.
Nicotine Salts
Nicotine salts are a newer formulation that incorporates benzoic acid to lower the pH level of the liquid. This makes the nicotine much smoother, even at very high concentrations like 25mg or 50mg. However, because nicotine salts are so smooth, it is easy to inhale too much nicotine at once, which can lead to a "heavy" feeling in the chest or a cough.
If you are coughing, consider lowering your nicotine strength. If you use freebase nicotine and find it too "peppery" or harsh, switching to a nicotine salt e-liquid might provide the smoothness you are looking for. Vapor Authority’s nicotine e-liquid selection includes products in different strengths and formulations.
Coil Condition and Priming
The atomizer coil is the heating element inside your vape pen that turns liquid into vapor. If this coil is not functioning correctly, it will produce a "dry hit" or a "burnt hit," both of which are guaranteed to cause a coughing fit.
Burnt Coils
Coils have a limited lifespan, usually between one and two weeks depending on usage. Over time, the organic cotton wick inside the coil becomes charred or clogged with "gunk" from sweetener-heavy e-liquids. When you heat a burnt coil, you are essentially inhaling the fumes of scorched cotton. If your vapor tastes like burnt toast or has a metallic tang, it is time to replace the coil.
For example, the Aspire K3 starter kit uses replaceable atomizer coils, allowing the heating element to be changed without replacing the entire device.
Proper Priming
When you install a new coil, you must "prime" it. This involves saturating the cotton wicking material with e-liquid before firing the device. If you fire a dry coil, you will instantly burn the cotton, ruining the coil and causing a very harsh inhale. After filling a new tank, we recommend waiting at least 5 to 10 minutes before vaping to ensure the wick is fully saturated.
Wattage and Temperature Settings
If you are using a regulated box mod or a vape pen with adjustable power, your wattage may be set too high. Every coil has a recommended wattage range printed on its side (e.g., 40W–60W).
If you exceed the recommended wattage, the coil will heat up faster than the e-liquid can saturate the wick. This leads to vapor that is uncomfortably hot and potentially acrid. Even within the recommended range, some vapers find that the higher end of the spectrum is too intense.
Try lowering your wattage to the bottom of the recommended range and slowly increasing it by 1 or 2 watts until you find a "sweet spot" that provides good flavor without irritating your throat. If your device has temperature control (TC) settings, ensure you are using the correct mode for your coil material (Nickel, Titanium, or Stainless Steel) to prevent accidental overheating.
Airflow Management
The amount of air moving through your device affects the density and temperature of the vapor.
- Tight Airflow: Produces a warmer, more concentrated vapor. This is ideal for MTL vapers but can be too intense if the nicotine strength is high.
- Open Airflow: Produces a cooler, airier vapor. This is ideal for DTL vapers and helps dilute the vapor, making it less likely to trigger a cough.
Many modern tanks and pod systems feature an adjustable airflow ring. If you find yourself coughing, try opening the airflow wider. The extra air will cool the vapor before it hits your throat, often resulting in a much smoother experience.
The SMOK T-Air sub-ohm tank is one example of hardware with adjustable airflow and replaceable coils.
Dehydration and "Vaper's Tongue"
Both PG and VG are hygroscopic, meaning they naturally attract and absorb water. When you vape, the vapor can dry out the mucosal membranes in your mouth and throat. This dehydration is a very common cause of throat irritation and a dry, "tickly" cough.
"Vaper's tongue" is a related phenomenon where your taste buds become desensitized to a specific flavor due to dehydration and olfactory fatigue. While not directly a cause of coughing, it often leads vapers to take longer, harder draws to try and "find" the flavor, which in turn leads to throat irritation.
The solution is simple: stay hydrated. Drinking water throughout the day can significantly reduce the drying effect of vaping and keep your throat from becoming sensitive.
Battery Safety for High-Powered Devices
If you are using a device with external batteries, like 18650s or 21700s, to troubleshoot your coughing issues through wattage adjustments, it is vital to practice proper battery safety. Your hardware relies on these power cells to function safely and consistently.
Practical Battery Safety Tips
- Inspect Wraps: Always check the plastic wrap on your batteries. If there is a tear, nick, or even a small hole, do not use the battery. Exposed metal can cause a short circuit.
- Use a Dedicated Charger: While many mods allow for USB charging, we recommend using a high-quality external charger. This ensures a more balanced charge and extends the life of your batteries.
- Proper Storage: Never carry loose batteries in your pocket or bag. If they touch coins, keys, or other metal objects, they can vent. Always use a plastic battery case for transport.
- Match Your Sets: If your device uses two or more batteries, keep them "married." This means using the same brand and model, and charging/discharging them together as a set to ensure they have similar wear levels.
Maintaining Your Device
Sometimes the cause of a cough is as simple as a dirty device. E-liquid can occasionally "spit back" or leak into the chimney of your tank. If droplets of unvaporized e-liquid hit the back of your throat, the high concentration of nicotine and flavorings will cause an immediate cough.
Regularly clean your drip tip (the mouthpiece) and the chimney of your tank using a twisted paper towel to soak up any excess liquid. This ensures that you are only inhaling vapor, not liquid droplets. Additionally, ensure all O-rings are intact and the tank is assembled correctly to prevent leaking issues that can interfere with airflow.
Conclusion
Coughing while vaping is almost always a sign that one of three things is off: your e-liquid, your hardware settings, or your inhalation technique. By systematically checking your nicotine strength, adjusting your PG/VG ratio, and ensuring your coils are fresh and properly primed, you can eliminate the vast majority of irritation.
Key Takeaways:
- Check your technique: Ensure you are using MTL or DTL appropriately for your device.
- Lower your nicotine: High freebase nicotine is a common irritant.
- Increase VG: Switch to a higher-VG e-liquid for a smoother throat hit.
- Maintain your coils: Change burnt coils and prime new ones thoroughly.
- Stay hydrated: Drink plenty of water to counteract the drying effects of PG and VG.
If you have tried these adjustments and are still looking for a smoother experience, we invite you to explore our curated selection of vape hardware and e-liquids at Vapor Authority. Finding the right combination of gear and juice is the key to a satisfying, cough-free experience.
FAQ
Why does my throat feel scratchy even though my coil is new?
A scratchy throat with a new coil is often due to high PG content or high nicotine strength in your e-liquid. Propylene Glycol (PG) provides the "throat hit" that some find irritating. Try switching to a 70/30 VG/PG blend or a lower nicotine concentration to see if the scratchiness subsides.
Can the flavor of my e-liquid make me cough?
Yes, certain flavor profiles are naturally more "harsh" than others. Citrus, cinnamon, and some intense menthol flavors can provide a sharper sensation that may trigger a cough for sensitive users. If you are experiencing irritation, try a smoother flavor profile like cream, custard, or sweet fruit.
How often should I change my coil to avoid coughing?
Most vapers need to change their coil every 7 to 14 days. If you use very sweet e-liquids, you may need to change it more frequently, as sugar can caramelize on the coil and cause it to burn. As soon as you notice a drop in flavor or a slightly burnt taste, replace the coil to avoid inhaling irritating fumes.
Is it normal for a beginner to cough when they first start vaping?
It is very common for beginners to cough during their first few days of vaping. This is usually because the body is not used to the sensation of vapor or because the user is using an incorrect inhalation technique. Starting with a low-power device and a smooth nicotine salt e-liquid can often help make the transition easier.
