Quick answer

To make candles last longer, trim the wick to 1/4 inch before every burn, let the wax melt to the edge on the first burn, and keep the candle away from drafts. Burn for no more than four hours at a time, and store candles in a cool, dark place. These habits prevent tunneling and uneven burning, so you get more hours from every candle.

Why does my candle burn unevenly?

Uneven burning almost always comes down to one of three things: a wick that is too long, a first burn that was cut short, or a draft moving the flame to one side. When the wick is too long, the flame gets large and the wax pool becomes lopsided. If the first burn doesn't reach the edge, the candle remembers that smaller pool and tunnels down the middle. And a draft pushes heat to one side, melting a crescent instead of a full circle. Fix the wick and the first burn, and most uneven burning disappears.

How do I prevent candle tunneling?

Tunneling happens when the melt pool never reaches the edge of the jar. To prevent it, the first burn is the most important: let the candle burn for one hour per inch of diameter, or until the melted wax reaches the glass. For a typical 3-inch jar, that means about three hours. After that, always trim the wick to 1/4 inch before lighting. If a tunnel has already formed, you can sometimes rescue it by wrapping the jar in foil with a small opening at the top and burning for a couple of hours, which traps heat and helps the wax level out.

How often should I trim the wick?

Trim the wick before every single burn. A 1/4-inch wick keeps the flame at a moderate size, which means a cleaner burn and less soot. You can use wick trimmers, nail clippers, or small scissors. Trim while the candle is cool and the wax is hard, so you don't accidentally push debris into the melt pool. If you see the flame flickering high or a mushroom-shaped tip on the wick, that's a sign it's past time to trim.

Does soy candle burn time differ from other waxes?

Yes, wax type affects burn time. Soy wax generally burns cooler and slower than paraffin, so a soy candle may last longer by weight. However, burn time also depends on wick size, jar diameter, fragrance load, and how you care for it. A well-cared-for soy candle can burn for many hours, but a neglected one will still tunnel and waste wax. The same trimming and first-burn rules apply to soy, paraffin, and blends.

How should I store candles when I'm not burning them?

Store candles in a cool, dark, dry place away from direct sunlight and heat sources. Heat can soften the wax and cause it to pull away from the wick or lose fragrance. Keep them upright to avoid warping, and if you're stacking them, put a soft cloth between layers. For jar candles, keep the lid on to protect the wax from dust and to preserve the scent. Avoid storing candles in the bathroom or above the stove, where humidity and temperature swings are common.

Can I burn a candle all day?

No, it's best to burn in sessions of one to four hours. Burning longer than four hours can cause the wick to mushroom, the wax to overheat, and the jar to become too hot. It also shortens the candle's overall life. After extinguishing, let the candle cool and harden completely before trimming the wick and relighting. If you want a longer scent session, it's better to burn two shorter sessions than one marathon burn.

Candle care quick guide

First burn

Let the wax melt to the edge of the jar before blowing it out. This sets the memory of the candle and prevents tunneling. Burn for 1 hour per inch of diameter.

Wick trimming

Trim the wick to 1/4 inch before every burn. This keeps the flame steady and reduces soot. Use wick trimmers, nail clippers, or small scissors.

Burn time

Burn for no more than 4 hours at a time. Longer burns can overheat the jar and shorten the candle's life. Extinguish, cool, trim, and relight later.

Storage

Keep candles in a cool, dark, dry place, upright and away from heat. Use lids to protect the wax and scent. Avoid bathrooms and stovetops.

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