The first time you burn your candle, burn it until the melt pool is all the way across the jar and about 1/2" deep. Generally 2-4 hours.
 

Trim the wick before you relight the candle. You can use a simple nail clipper, or purchase a wick clipper. The wick should be approx. 2mm long.
 

Don't allow your candle to burn for longer than 4 hours at a time.
 

Replace the lid to smother the flame rather than blow out the flame.
 

Soy wax burns clean, but scents are not as strong. Don't be alarmed if your candle smells stronger when it is cold than when it is lit.