How to Fill a Butane Lighter (Plus Torch and Zippo Refills)
Quick answer: Turn the flame adjuster to its lowest setting and bleed out the old gas by pressing the fill valve with a small screwdriver until the hissing stops. Then hold the lighter upside down, press the upside-down butane can straight onto the valve for 5–6 seconds, and repeat once or twice. Wait at least two minutes before lighting it, because the fresh fuel is too cold to vaporize. That’s the same routine Zippo gives for its butane inserts.
Most “the refill didn’t work” complaints come from skipping one of three things: the bleed, holding the can upside down, or the wait. The steps below cover all three.
What You Need
- A refillable butane lighter. Look for the fill valve on the bottom: a small metal nipple, often with a flame-height wheel or screw next to it. No valve means it isn’t refillable.
- A can of refined butane. Buy fuel sold as 5x refined or higher. Cheap, unrefined butane leaves an oily residue that clogs the jet, which is the most common cause of a weak flame later.
- A small flathead screwdriver (or a ballpoint pen tip) to bleed the tank.
- A paper towel to wipe off spilled fuel.
- Adapter tips, only if you need them. Most cans come with a set, but the can’s own nozzle fits most lighters.
How to Fill a Butane Lighter, Step by Step
- Pick a safe spot. Let the lighter cool if you’ve just used it, and work by an open window or outdoors, away from flames, pilot lights and cigarettes. Butane vapour is heavier than air and settles.
- Turn the flame adjuster to minimum. It’s usually marked +/−. Starting low stops the first flame from flaring up at you.
- Bleed the tank. Point the valve away from your face and press it down with the screwdriver. Old fuel and trapped air hiss out. Keep pressing until the hissing stops completely. The escaping gas is very cold, so keep it off your skin.
- Turn both upside down. Hold the lighter with the valve facing up, and turn the butane can upside down above it. The can has to be inverted to deliver liquid fuel; upright, it mostly pushes vapour. There’s no need to shake it, because butane is its own propellant.
- Fill in short bursts. Press the nozzle straight down onto the valve, firmly, for 5–6 seconds. Pause, then give it one or two more bursts. When fuel starts spitting back out around the nozzle, the tank is full.
- Wipe it dry. Wipe any spilled butane off the lighter and your hands, and let the rest evaporate.
- Wait at least two minutes. Filling chills the tank sharply, and cold butane won’t vaporize properly. In a cold room, give it five.
- Test it. Hold it at arm’s length and light it on the lowest setting, then turn the adjuster up to the flame height you want.
If It Won’t Light After Filling
| What happens | Likely cause | Fix |
|---|---|---|
| Sparks, but no flame | Air in the tank, or the fuel is still too cold | Wait a few more minutes. Still nothing? Bleed it completely and refill with the can upside down. |
| Butane sprays everywhere and none goes in | Nozzle not seated straight on the valve | Press straight down, harder. If it still sprays, try an adapter tip from the can’s set. |
| Weak, sputtering flame | Air mixed in with the fuel, or a partly clogged jet | Bleed and refill. If that doesn’t help, clear the jet with compressed air. |
| Flame flares up tall | Adjuster left high, or the lighter was lit before it warmed up | Turn the adjuster to minimum and wait, then raise it gradually. |
| Keeps hissing after you stop filling | Valve not sealing | Stop using it. A lighter that won’t hold its fuel should be replaced. |
The full troubleshooting guide, including jets, flints and piezo igniters, is in how to fix a lighter that won’t light.
Refilling a Torch Lighter
A jet or torch lighter fills exactly the same way: same valve, same inverted can, same bursts and the same wait. Two differences are worth knowing:
- Fuel quality matters more. A torch’s jet orifice is tiny, so it clogs faster on cheap fuel. Stick to refined butane.
- Lock it first. Many torch lighters have an ignition lock. Engage it before you fill, so the trigger can’t fire while you’re handling a lighter full of fresh fuel.
Refilling a Zippo
It depends on which insert is inside.
Butane insert: fill it as above. Zippo’s own instructions are to hold the insert upside down, fill for 5–6 seconds, briefly press the valve to release trapped air, fill again for 5–6 seconds, then wait at least two minutes before lighting. Our butane vs lighter fluid insert guide covers which insert to buy.
Classic fluid insert: this one takes lighter fluid, never butane. Pull the insert out of the case and flip it over, lift the felt pad, and slowly saturate the cotton. Zippo says to stop when the fuel reaches the top of the packing. Wipe the lighter and your hands dry before you strike it. More in can a Zippo explode? and our Zippo care guide.
Can You Refill a BIC?
No. BIC says all of its lighters are designed to be non-refillable, apart from its EZ Load multi-purpose lighters. A disposable has no fill valve. The online “hacks” involve prying open or piercing a pressurized fuel tank, which isn’t worth the risk for a lighter that costs about a dollar. If you go through disposables quickly, a refillable lighter and one can of butane will outlast a drawer full of them.
Butane Safety
- Ventilation first. Fill outdoors or by an open window, never near a gas stove, water heater or anything with a pilot light.
- Keep it off your skin. Escaping butane is cold enough to cause frost burns. Point the valve away from you when bleeding.
- Don’t overfill. When fuel spits back, stop. Forcing more in just sprays it around your hands.
- Store cans cool. A butane can is a pressurized container. Keep it out of hot cars and direct sun, and out of children’s reach.
FAQ
How long do you hold butane in a lighter? About 5–6 seconds per burst, which is what Zippo specifies for its butane inserts. Two or three bursts fill most lighters. When butane spits back out around the nozzle, it’s full.
How long should you wait after filling a butane lighter? At least two minutes, and longer in a cold room. The refill chills the tank, and the fuel has to warm up before it vaporizes properly.
Why won’t my lighter work after I filled it? Usually one of three things: you lit it before it warmed up, the can was held upright so it delivered vapour instead of liquid, or air is trapped in the tank. Wait, then if needed bleed it completely and refill with the can upside down.
Do you have to bleed a lighter before refilling? It’s the best habit. Bleeding clears out trapped air, which is the most common reason a freshly filled lighter only sparks. It takes about ten seconds.
How do you refill a lighter without an adapter? Most cans’ built-in nozzle fits a standard valve if you press it straight down firmly. You only need an adapter tip if the fuel sprays out around the valve instead of going in. Don’t force a nozzle that doesn’t fit.
Can you put butane in a regular Zippo? No. The classic insert has no valve or sealed tank, so the butane just boils off. Use lighter fluid in a fluid insert, or buy Zippo’s butane insert if you want a butane flame.
How long does a refill last? It depends on the lighter and how you use it. See how long a gas lighter lasts for typical numbers.