While most beginners prefer to use metallic or silicone moulds to make their candles, jars are probably the best containers to start with. Candle jars are easy to use since they eliminate potential mistakes common with the use of moulds. For instance, most people remove candles from moulds prematurely, increasing the risk of cracking. With jars, candles remain inside; hence, you can leave the wax to cool and set for as long as you want.