What Temperature to Pour Soy Wax: The Full Temperature Guide

Temperature is the single biggest technical variable in soy candle making, and different stages call for different temperatures. Here's the full breakdown.

Melting temperature: melt soy wax to 175-185°F (79-85°C) using a double-boiler setup. This range fully liquefies the wax without scorching it. Melting much hotter than this risks discoloring the wax and burning off some of the wax's natural properties.

Fragrance addition temperature: add fragrance oil once the wax is at 175-185°F, right after melting. This temperature is hot enough to help the oil blend in fully, without being so hot that it burns off the lighter, more volatile fragrance notes before the candle is even poured.

Dye addition temperature: add dye slightly cooler, around 165-175°F, after the fragrance oil is fully mixed in.

Pouring temperature: let the wax cool to 135-145°F before pouring into your container. This is the range most soy candle makers land on for a single pour - it's cool enough to minimize sinkholes and shrinkage as the wax sets, but warm enough to still pour smoothly and adhere well to the glass.

What goes wrong if you pour too hot (above 145-150°F): a higher chance of the wax pulling away from the glass as it cools quickly from a big temperature drop, leading to more pronounced wet spots, and a higher risk of the wick tab shifting before the wax sets around it.

What goes wrong if you pour too cold (below 130°F): the wax may start setting before it's fully poured, leading to a rough, uneven top surface, visible pour lines, and poor adhesion to the wick or container.

Ambient room temperature matters too - pouring in a cold room accelerates cooling and makes it harder to hit a clean pour, so aim for a room around 65-75°F if you can control it.