How to Prime a Vape Coil: A Step-by-Step Guide
Ever fired a brand new coil and been hit with a harsh, burnt taste on the very first puff? That's almost always a priming problem, not a faulty coil. Priming means fully soaking the cotton wick in e-liquid before you ever heat it, and it's the single biggest factor in whether a new vape coil lasts its full lifespan or burns out in a day. This guide covers how to prime a vape coil properly, whether you're dropping a fresh coil into a standard tank or pod, or setting up a big puff refillable kit like the Lost Mary BM6000.
Quick Summary
Apply a few drops of e-liquid directly to the visible cotton wicking ports on a new coil, fill the tank or pod, then let it sit for 5 to 10 minutes before your first puff (up to 30 minutes for larger sub-ohm coils). Start vaping at the lowest wattage setting and step up gradually over the first 15 to 20 puffs rather than firing at full power immediately. Skip this and the dry cotton scorches the moment it heats, giving you a burnt taste and a ruined coil that can't be undone.
What Priming Actually Does to a Coil
A vape coil works by heating a thin wire wrapped around cotton wicking. When the wick is properly soaked in e-liquid, that heat turns the liquid into vapour. When the wick is dry, the same heat just scorches the cotton, and the burnt taste that produces never fully goes away, no matter how much e-liquid you add afterwards. Priming is simply the process of pre-soaking that cotton before the coil ever fires, so it has liquid to vaporise from the very first puff instead of running dry.
It matters for every device that uses a wicked coil, from a sub-ohm tank running 10ml e-liquid bottles, to a simple pod kit like the Vaporesso Xros, right through to big-capacity refillable kits. The mechanism is identical even when the setup looks different.
How to Prime a Standard Replacement Coil
This is the method for any tank, sub-ohm device, or pod system that takes a separate, swappable coil, such as coils from our Coils & Tanks range.
How to Prime a Big Puff Refillable Kit
Kits like the Lost Mary BM6000 and Al Fakher 50K use a sealed pod with an attached refill container instead of an open drip-fed coil, so you don't drip e-liquid onto the coil directly. The priming principle is exactly the same though: the wick still needs time to soak before you fire it.
- Insert the refill container into the pod as instructed for your specific kit.
- Keep the device upright and leave it to stand for 5 to 10 minutes so e-liquid can migrate from the container into the mesh coil's wicking.
- Take a few slow, gentle puffs first rather than a hard pull, to finish saturating the coil evenly.
We've written a full walkthrough of this exact process, including charging and troubleshooting, in our Lost Mary BM6000 setup guide, which applies to most sealed big puff pod systems.
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Shop Coils & Pods Shop E-LiquidBreaking In a Coil: Step Up the Wattage Gradually
Priming gets the wick wet. Breaking in gets the coil used to heat. The two go together: firing a freshly primed coil straight at your usual wattage can still scorch parts of the wick that haven't fully settled yet, especially on sub-ohm coils. The standard approach is:
- Set the wattage to the lowest number printed on the coil.
- Take 5 or 6 short, gentle puffs.
- Increase the wattage by around 5 watts.
- Repeat, taking a few puffs at each step, until you reach your normal vaping wattage over roughly 15 to 20 puffs total.
This gradual ramp-up is especially worth doing on higher-wattage sub-ohm coils, where the jump from cold to full power is much bigger than on a simple pod kit.
Signs Your Coil Is Properly Primed
You'll usually know within the first couple of puffs whether priming worked:
| Sign | What it means |
|---|---|
| Smooth, full-flavoured vapour | Wick is properly saturated, you're good to go |
| Harsh, dry, ashy taste | Wick is still dry in places, stop and let it rest longer |
| Gurgling or spitback | Possibly over-primed or flooded, let excess liquid settle or wipe it off |
| Thin vapour, weak flavour | Could be under-saturated or a low battery, check both |
If the first puff tastes off, the fix is almost never "keep puffing through it." Put the device down, let it rest a few more minutes, and try again.
Priming Mistakes That Kill Coils Before Their Time
- Firing immediately after filling. Skipping the wait entirely is the single most common cause of a burnt first hit.
- Chain vaping straight out of the box. Even a properly primed coil needs a few gentle puffs before it can handle back-to-back hard draws.
- Over-saturating the coil. Too much e-liquid dripped in too fast causes gurgling and spitback rather than a better prime.
- Jumping straight to full wattage. Especially on sub-ohm coils, this can scorch the wick even if it was primed correctly.
- Letting a device sit unused for weeks. The wick can dry out even with e-liquid still in the tank. Re-prime with a short rest and gentle puffs before going back to normal use.
How Long Should a Primed Coil Last?
A coil that's properly primed, broken in gently, and paired with decent e-liquid typically lasts anywhere from 1 to 3 weeks, depending on how much you vape and at what wattage. You'll know it's time to swap it out when you notice a persistent burnt taste that priming can't fix, noticeably less vapour than usual, or visible dark buildup on the coil head. None of that is a priming issue at that point, it's just a coil reaching the end of its natural life.
Still Getting Burnt Hits After Priming?
If you've followed every step and you're still getting a burnt or dry taste, work through these before assuming the coil is faulty:
- Check the tank isn't running low. A coil firing on a near-empty tank will dry hit no matter how well it was primed originally.
- Confirm the wattage matches the coil's rating. Running a coil above its recommended range burns through e-liquid faster than the wick can keep up.
- Give it longer to rest. Some coils, especially dense sub-ohm builds, genuinely need the full 30 minutes, not just 5.
- Check for a manufacturing fault. If a brand new coil still tastes burnt after a proper prime and a fresh attempt, it may be a dud. Contact us if that's the case.
Frequently Asked Questions
How long do I need to prime a vape coil?
5 to 10 minutes is the standard minimum wait after filling. Larger sub-ohm coils, or if you're unsure, can benefit from up to 30 minutes. Always prime longer rather than shorter if you're not sure the wick is fully saturated.
How much e-liquid should I put on a new coil?
3 to 4 drops directly onto each visible cotton wicking port is the usual amount, plus a drop or two into the airflow if accessible. Avoid flooding the coil, as too much liquid too fast can cause gurgling rather than a better prime.
Can I skip priming if I'm in a hurry?
You can, but you're gambling with the coil. Firing a dry coil even once can scorch the wick permanently, which means a burnt taste that never goes away and a coil you'll need to replace early. The few minutes it takes to prime properly is far cheaper than a ruined coil.
Do pod kits need priming the same way as tank coils?
The principle is the same, but the method differs. Open tank coils get e-liquid dripped directly onto the wick. Sealed pod kits and big puff refillable systems, like the Lost Mary BM6000, feed the coil automatically once you insert the refill container, so you just need to wait and let it soak rather than drip anything manually.
Why does my coil taste burnt even after I primed it?
Usually one of three things: the wick didn't get enough time to soak, you jumped straight to a high wattage instead of stepping up gradually, or the tank is running low on e-liquid. Rest the device, check the liquid level, and try a lower wattage before assuming the coil itself is faulty.
What does an over-primed coil look or sound like?
Gurgling, popping, or spitback when you puff are the main signs of too much e-liquid in the coil. If that happens, blow gently through the mouthpiece (over a sink) to clear the excess, or wipe the coil down before trying again.
Do I need to prime a coil every time I refill the tank?
No, only when you install a brand new coil. Topping up e-liquid in a tank with a coil that's already been used and primed doesn't require the same wait, since the wick is already saturated.
How long should a properly primed coil last?
Typically 1 to 3 weeks of normal use, depending on your wattage and how much you vape. A persistent burnt taste, weaker vapour, or visible dark buildup on the coil head are the signs it's time for a replacement rather than another prime.
What's the wattage step-up method for breaking in a coil?
Start at the lowest wattage the coil is rated for, take 5 or 6 gentle puffs, then increase by about 5 watts and repeat. Over roughly 15 to 20 puffs you'll reach your normal vaping wattage without shocking a freshly primed wick with too much heat too soon.
Priming takes a few minutes and costs nothing, but it's the difference between a coil that lasts its full life and one that's ruined on the first puff. Whether you're dropping a fresh coil into a tank from our Coils & Tanks range or setting up a big puff kit like the Lost Mary BM6000 or Al Fakher 50K, the same rule applies: wait for the wick, don't rush the first puff. Browse the full vape coils and pods range or our e-liquid selection to stock up.