We prefer to use cotton core wicks when making soy candles. This wick chart is a starting point for making soy candles. When using our paraffin waxes, please keep in mind that you may need to wick down in size. Please do testing in small amounts - do not look at the chart and make hundreds of candles without testing. Testing is a step that cannot be skipped. Customers who purchased cotton core candle wicks also purchased candle soy wax and candle scents.