Woodwick: On first burn, let wax reach a full melt pool to avoid tunneling. (At least 2 hours) With every consecutive burn, keep wick trimmed to about ¼” inch. Do this by pinching off the curled bits of the black, not the entire black portion! If candle flame is dimming and seems like it may go out, let it burn for 20 more minutes. If low flame persists, blow it out, wait for wax to harden, then pinch off a bit more of the black portion. Patience is key here! Woodwicks take time to maintain as they are essentially mini fireplaces. :)
To avoid fire hazard, never leave a burning candle unattended. Keep out of reach of flammable objects, pets, children, or anything that may catch on fire. Do not burn the candle for more than 4 hours at a time. Stop use when only 1/4” of wax remains.