You know - this candle burning thing can get a little complicated....... JMHO - This is how I look at it: I have tested my candles until I am blue in the face, and there will still be some variable that I, or anyone else, has not thought up at this point. Ambient temperature, humidity, whether or not there is a draft in the room etc etc etc..... People that buy your candles can come up with the most amazing ways to burn them, and there is no way on God's green earth that you can account for all those things. Do your best, make sure your product is safe, but unfortunately, you can't account for all the variables that may present themselves when your customer makes use of your product. Temperature, or otherwise......