Burn it to the edge the first time

Because of what happened the first time you lit it. Four separate conversations say the first burn decides it, and one account explains the mechanic: wax that has melted and set again is softer than wax that never melted, so it melts first the next time. If the first burn only melted a pool in the middle, that pool is the soft spot, and every later burn drops into it while the ring around it stays hard — the accounts call it the wax’s memory, and one caution says the ring, once set, follows the candle for its whole life. If the first burn goes all the way to the glass, the whole top is soft, the next burn reaches the edge in a fraction of the time — one account says more than twice as fast — and the candle uses all of itself. One prevalence note says the people in it had assumed the makers were making the candles too big, rather than that they were burning them wrong. Not every hole is your doing, though: one account and one exchange, four accounts to one, say a wick too thin for the jar, or too few wicks in a wide one, tunnels in a way burn time alone cannot always fix, and one correction says both are true — a good candle can still tunnel on a short first burn, and wick size plays a large part.

An hour for every inch of the jar’s width, four separate conversations say, and one correction says it scales — two inches, two hours; three inches, three. The candle trade’s own guidance is the same rule. Six accounts in one note found the phrasing confusing, so here it is plainly: light it, and do not blow it out until the melted wax touches the glass all the way round; if that takes longer than the arithmetic, the arithmetic loses. There is a ceiling too. One account says burning on past the full pool makes runners — wax climbing and spilling over — and the trade says no more than about four hours at a time, with two hours to cool before you relight; one caution says wait for the wax to set fully before the next burn. Three exceptions from the accounts. A bare pillar candle with no jar cannot be burned to its edge without spilling, two accounts say, so the rule is for jars and tins. One account says coconut wax and its blends do not need the strict full pool. And one account says a draught from a fan or a vent pushes the heat to one side and starts a tunnel early, which is why the trade says to keep the flame out of moving air. Whether a candle with two or three wicks needs the same hours is a gap in these conversations, and how the rule changes for soy against paraffin against beeswax is a gap here.

Two separate conversations say trim it, and two more say trim it before the first burn especially: a long wick makes a tall, hot, sooty flame that drives heat up rather than out, and a short one makes a wider, calmer pool. Two conversations use nail clippers. The trade puts a number on it — a quarter of an inch, before every burn, with any burnt debris lifted out of the pool — and one caution says a flame producing black smoke during the first burn is too big and should be trimmed down. A wick that is the wrong size for the jar is the maker’s problem, as the first answer says, and how to judge that before buying is a gap in these conversations.

Three separate conversations use the same trick: dip the lit wick into the melted pool so the wax puts the flame out, then lift the wick upright again. No smoke, no smell of snuffed wick, and the wick is primed in wax for the next light. Some accounts in those conversations shake the jar so the wax covers the flame instead; this page does not carry that, because hot wax moves faster than a hand, and the fire-safety bodies’ default — a snuffer, or a gentle blow — is the one to use if the dipping feels fiddly. Never water. Whether the smoke is even a problem is argued three accounts to four across three conversations and rendered below: some people like the smell of a blown-out candle and some cannot stand it.

Sometimes, and the fix has a hazard attached. Two separate conversations wrap the top of the jar in aluminium foil so heat reflects back onto the ring of hard wax and melts it level; one correction says the wrap should run down the sides of the jar rather than sit on top like a lid, one account doing it on a first light puts the shiny side inward, and one account hangs a foil collar over the rim, kept clear of the flame. The contraindication in the safety line is the price of it: take the foil off as soon as the surface has levelled, because a covered candle traps heat, the wax vaporises, the flame climbs, and water on it makes a fireball. Two gentler fixes from single accounts: scrape the soft wax from the ring in toward the centre with a butter knife while the pool is warm, so the surface levels itself over a few burns; or, from two more single accounts, stand the jar on an electric candle warmer, which avoids a flame and throws the scent better, or on the hotplate of a coffee maker until the uneven wax is level again. What to do with a deep ring that foil does not reach is a gap in these conversations.

One account melts leftover wax in a jar standing in a pan of warm water — never directly on the heat — pours it into a new container with a fresh wick, and mixes scents while doing it; how to rig that without a suitable pan is a gap here. One account keeps candles in the freezer and says they burn longer and drip less. One account lifts wax off a wall by laying kitchen paper over it and pressing a warm iron on the paper. And one account describes the weighted brass devices, called followers, set on church candles to press the edges so the wax does not run and none is wasted.

It can, briefly, and the accounts who tested it say otherwise. Four separate conversations pass on the tip that a crayon burns for about half an hour, its paper wrapper acting as the wick. The accounts then tried it: one exchange, one account to three, and one correction say the burn lasts minutes — five to seven in one test, just over twenty at the longest, none reaching half an hour — and two accounts say theirs charred black and would not stay lit or got too hot to hold. Two contraindications and four cautions go with it: the wax runs very hot, a pie tin under it can soften, the fumes need an open window and should not be breathed, one caution says old crayons may carry traces of asbestos in the dust, and one account says the flame flares when melted wax reaches the paper. Three accounts in one exchange argue viability three to three: cheap and it works for a single use, against impractical and hazardous when a torch does the job. These conversations also argue at length about making a candle from vegetable shortening or an oil lamp from a can; one account says the materials cost about what a real candle does and it is not worth the risk, and this page agrees and gives no instructions. Two safety lines fall out of that argument and belong here anyway: never put water on a fat or oil fire, and never flour — one caution says flour is explosive — and the extinguisher page linked below carries what the British and American fire services say about a burning pan.