How Long Should You Burn a Candle? A Simple Guide to Burn Times
How long you let a candle burn affects how evenly it melts, how much scent it gives off and how long it lasts. The good news: you only need to remember two rules, one for the first burn and one for every burn after.
The first burn: let the wax melt to the edges
Wax has a kind of memory. On the very first burn, let the melted wax spread all the way to the sides of the jar before you put the flame out. If you stop early, later burns tend to follow that smaller ring and the candle starts to tunnel down the middle.
A common rule of thumb is about one hour of burn time for every inch of jar diameter. A 3-inch jar may need around three hours; a wide 3-wick candle may need less because its wicks share the work. Watch the wax rather than the clock: when the melt pool reaches the edges, you are done.
Every burn after: stop at about four hours
Many candle makers recommend burning for no more than about four hours at a time. After that, the wick can start to mushroom (form a black carbon ball), the flame gets taller and smokier, and the jar can get very hot. Always check the label on your candle, because the maker's instructions come first.
Signs your candle has burned long enough
- The melt pool reaches the edges of the jar.
- The wick has a dark, mushroom-shaped tip.
- The flame is tall, flickering or smoking.
- The jar is too hot to touch comfortably near the top.
Habits that make every burn better
- Trim the wick to about 1/4 inch before each burn.
- Keep it out of drafts so the flame burns steadily.
- Let the wax set before you relight it.
- Stop with about 1/2 inch of wax left in the jar, so the bottom of the glass does not overheat.
Use a timer so you do not lose track
The hard part is not knowing the rule; it is remembering to put the candle out when time is up. That is why we built ALEC. Set a burn time on the base, and when the countdown reaches 0:00 the lid closes over the jar and the flame goes out. ALEC was invented by founder Shay Philips and its timed, self-closing lid is protected by U.S. Patent No. 10,544,938.
Safety first
A timer is a reminder, not a babysitter. Never leave a burning candle unattended, keep it away from anything that can catch fire, and keep it out of reach of children and pets. Read our candle safety tips.