Frequently Asked Questions About Coils and Pods for E-Cigarettes
Coils and pods are essential components of any e-cigarette, directly affecting both flavor and performance. In this guide, we answer the most common questions about these parts, helping you better understand how they work and how to optimize your vaping experience.
What is a coil and how does it work in an e-cigarette?
A coil is the part of the e-cigarette that heats the e-liquid and turns it into vapor. It consists of a resistive wire (often kanthal or mesh) wrapped around a cotton wick. When power flows through the coil, it heats up, vaporizing the e-liquid soaked in the cotton.
Coils come in various materials and resistance levels (ohms). Low-ohm coils are typically used for sub-ohm vaping, which produces large vapor clouds and requires higher wattage. Higher-ohm coils are used for a more discreet experience and lower e-liquid consumption.
How often should you change your coil?
The frequency depends on how much you vape, the type of e-liquid you use, and the specific coil. Generally, coils should be replaced every 1–2 weeks, or sooner if you notice burnt taste, reduced vapor production, or muted flavor.
Signs your coil needs replacing:
- Burnt taste
- Decreased vapor production
- Weaker or altered flavor
What is a pod and how does it work?
A pod is a compact container for e-liquid used in pod systems—simplified versions of e-cigarettes. Unlike traditional tanks, pods are typically smaller, easier to use, and require less maintenance. There are two main types:
- Pre-filled pods (cartridges): These come filled with e-liquid and cannot be refilled. When empty, simply replace the pod.
- Refillable pods: These allow you to fill them with your own e-liquid, giving you more control over flavor and nicotine strength.
How do you change a coil in your vape?
The process varies by device, but in general:
- Remove the tank from your device.
- Empty any remaining e-liquid.
- Unscrew the old coil from the base of the tank.
- Screw in the new coil.
- Refill with e-liquid and let it sit for a few minutes to allow the cotton to saturate properly.
Letting the new coil soak ensures you avoid burning it on first use.
What’s the difference between sub-ohm coils and MTL coils?
Sub-ohm coils have a resistance below 1 ohm and are designed for direct-lung (DL) vaping, producing large vapor clouds and intense flavor. They require higher wattage and consume more e-liquid.
MTL (mouth-to-lung) coils have a resistance above 1 ohm and mimic the draw of a traditional cigarette. Vapor is first collected in the mouth, then inhaled into the lungs. MTL is ideal for beginners or users who prefer a discreet vape.
How long does a pod last?
Pod lifespan depends on usage and the type of e-liquid. Refillable pods typically last 1–2 weeks before wearing out or tasting burnt. Pre-filled pods usually last for 200–400 puffs, depending on size and design.
What type of e-liquid works best in pods?
Pods—especially smaller ones—work best with e-liquids that have a 50/50 VG/PG ratio. High-VG liquids are thicker and can shorten pod life or burn the coil.
Nicotine salt (nicsalt) e-liquids are popular in pod systems because they offer a smoother throat hit and more effective nicotine delivery at higher strengths, closely mimicking the feel of traditional cigarettes.
How do you refill a pod?
Refilling a pod depends on its design, but the general steps are:
- Remove the pod from the device.
- Locate the refill port, often covered by a small rubber plug.
- Gently lift the plug and fill the pod with e-liquid. Don’t overfill.
- Replace the plug and let the pod sit for a few minutes so the coil can absorb the e-liquid.
What is a mesh coil and why is it popular?
A mesh coil uses a mesh screen instead of a standard wire. It offers more surface area for heating e-liquid, which results in better vapor production and improved flavor. Mesh coils are known for their longevity and high performance, especially in sub-ohm vaping.
How do you prevent a coil from tasting burnt?
To avoid a burnt taste, always let a new coil soak in e-liquid before using it. Vaping at too high a wattage can also burn the coil. Follow the manufacturer’s recommended watt range and avoid vaping when your tank or pod is almost empty.