White candles with no coloring or dyes burn at a slower rate than colorful candles. Colored candles typically have a larger quantity of chemicals, additives, and colours, causing them to burn quicker than pure wax. The variation in how rapidly each style of candle burns, however, is rather tiny. It's not worth it to buy one type of candle to save on burning time.
If a colorful candle and a white candle are both burnt for an hour at the same time, the colored candle will burn quicker since it contains more chemicals than the white candle. These chemicals are called oxidizers and they speed up the burning process by breaking down some of the wax into smaller molecules that are easier to burn.
The reason black candles burn faster is because they don't reflect light like white candles so they can burn all night without being re-lit.
This is because black color absorbs light rather than reflecting it. This means that less of its chemical composition is used up each time it burns, giving it a higher percentage of wax remaining after burning.
This is why black candles last longer than white ones - there's more oil in the black wax to start with.
However, if you want your candles to have a similar length, then use candles of equal weight and measure them from the top of their spouts before you burn them. Then repeat every week until they're gone!
In actuality, color has little to no effect on how quickly a candle burns. In reality, candle dyes can cause a candle to burn hotter, leading colored candles to burn quicker. The wick size and kind of wax are the two most important parameters in candle burning.
When you buy a colored candle, be sure to get one that is labeled as such. Some companies add colors to their candles without using dyes which means they have made hot-pressed or solid candles. These types of candles will never melt completely and will always leave some color in the candle when it is done burning. They are perfect for giving the impression of more activity in your home during times when you may not be around to watch over things.
Hot-pressed candles are made by pressing blocks of wax with imprinted designs into liquid dye. When the dyed wax is heated, the color molecules move closer together and become less soluble so they can be removed from the wax and used again. Because these candles aren't molded into their final shape until after they're dyed, they tend to be cheaper options. However, the coloring won't wash off like with standard candles and the heat of use could damage the imprinting process.
Solid candles are coated in a thick layer of wax that prevents them from melting away even under the heat of use.
Color Does Make a Difference In actuality, color has little to no effect on how quickly a candle burns. This is especially true for deeply colored candles that have a lot of dye added to them. However, the difference is so small that it is not worth mentioning as a burning time variation factor.
Purpose. Finally, both colored candles and white candles are dyed with chemicals, but colored candles have many more. This causes colorful candles to burn quicker than white candles. The white candle grew at a rate of 2.1 inches per hour, the green candle at a rate of 3.1 inches per hour, and the tan candle at a rate of 2.7 inches per hour.