September 28, 2026 Post by : Editorial Tallow Candles

You have rendered your tallow, and now you are ready to pour candles. This is where small decisions matter: the wick, the container, the temperature of the wax. Get these right and tallow candles burn as well as any you can buy. Get them wrong and you will end up with a smoking, tunneling mess that makes you wonder why anyone bothers. The good news is that the fixes are straightforward.

Tallow is a dense wax. It burns hotter and slower than soy or paraffin, which is part of its charm, but it also means wick sizing needs a little more attention. A wick that is too small will drown in the melt pool; one that is too large will smoke and burn too fast. Start with a cotton wick sized for beeswax, which is the closest common wax in density, and adjust from there.

Choosing Wicks and Containers

Cotton wicks are the traditional choice and work beautifully with tallow. Avoid wicks with a metal core, which can introduce unwanted fumes. For a standard half-pint jelly jar, a medium cotton wick is usually right. For a wider container, you may need two wicks placed an inch or two apart so the melt pool reaches the edges evenly.

Glass jars are the easiest containers to start with. Mason jars, small jelly jars, and repurposed glass yogurt cups all work. Whatever you choose, make sure it is heat-safe and not too narrow. Tallow candles need a melt pool that can spread, and a very narrow container will cause tunneling no matter how well you wick it. A container two to three inches across is a good starting point.

Anchor your wick to the bottom of the jar with a small dab of melted tallow or a wick sticker. Use a wick centering tool or two chopsticks laid across the rim to hold the wick upright while the wax sets.

Temperature and the Pour

Melt your tallow gently in a double boiler. Once it is fully liquid, let it cool to around 140 to 150 degrees Fahrenheit before pouring. If you pour too hot, the wax can shrink away from the jar and crack as it cools. If you pour too cool, you will get uneven tops and air pockets. A simple kitchen thermometer takes the guesswork out.

Pour slowly, leaving about half an inch of headspace. Let the candles set undisturbed at room temperature. Resist the urge to move them to a cold room or the refrigerator, which can cause the wax to crack. After a day, trim the wick to a quarter inch and your candle is ready.

The first burn matters. Let the candle burn long enough for the melt pool to reach the edge of the container, usually an hour or two, before extinguishing it. This sets the memory of the wax and helps prevent tunneling on later burns. Trim the wick before every burn, keep the candle out of drafts, and it will reward you with many hours of warm, steady light.

• Share:

Back to blog

Small Business Owners Make it Happen in 2025

Small Business Owners Make it Happen in 2025