Jar candles are only one of many types of candle you can make at home, but candles made in jars are without doubt one of the easiest ways to make candles. At their simplest these can be made without any sort of specialist equipment with just what you have around the house.
If you have some old candles that have burnt down or become misshapen and unattractive these will be ideal for making your new jar candles.
You will first need to find a container to hold your jar candle. Any strong glass container is suitable and if you have some old stemmed fruit dishes you no longer use, these would be ideal. Just make sure the container is perfectly clean, dry and warm before you are ready to melt your wax.
If you are using old candles, you will need to break these up as best you can to speed up their melting. In order to melt your wax without the danger of it burning or catching fire, you will need to heat it up in a double boiler. This is where you have the container with your wax in it inside a second large pot full of boiling water. If you use a old tin as your inner container, this can simply be disposed of once your wax is melted and poured and you do not have to worry about cleaning this up afterwards.
If you have no pre-made and pre-primed wicks, you can simply make your own by dipping some braided strips of cotton yarn into melted wax and pulling them straight to dry and harden.
Once your wax is melted you are then ready to make your candle. Have your container ready on a piece of newspaper on your countertop to make sure any spills are easily cleaned up. Glue one end of your wick into the center of the bottom of your container and attach the other end to a straw placed across the top of the container in order to keep the wick central. Pour the melted wax carefully into your container, ensuring that the wick is kept as central as possible.
Let the wax cool slowly and undisturbed for several hours or until completely hardened. Sometimes you'll end up with a depressed area around the wick of the candle but luckily this has an easy solution. You just need to melt some more wax and pour it into the dip to bring the level up. Once the new wax has hardened, simply trim the wick down to around 1/4 "and your candle is ready for use – always assuming you are going to light it and not just declare it as an attractive ornament!