Before you buy anything
A few things worth knowing first
Size your wicks before you buy them, not after your first bad burn. A too-small wick tunnels — the flame burns down the center and leaves a ring of unmelted wax around the edge. A too-large wick mushrooms, smokes, and smells acrid. For a standard 8 oz mason jar with 464 soy wax, a CD-18 or ECO-6 wick is the community consensus. Look up the wick sizing guide on your wax supplier's site before ordering.
Weigh everything. Volume measurements don't work for candles because wax density shifts with temperature. A kitchen scale that reads in grams is the most important tool you own. Standard fragrance load for soy wax is 6-10% by weight — so for 250g of wax, add 15-25g of fragrance oil. Any kitchen scale with a tare function works.
Soy candles cure for 48-72 hours before you test them. Freshly poured soy looks and smells underwhelming — the fragrance binds as it cures. Most first-timers pour, sniff 20 minutes later, decide something went wrong, and start troubleshooting a candle that just needs time. Wait two full days before evaluating scent throw.