Cheap vs expensive mason-jar-type candles, why difference in burn time?

So lately I’ve been burning a candle in my office for the nice scent and also it’s cool to watch the flame.

Originally I had this one from some expensive place , it lasted for weeks. Finally, it died. Found one that looked the same at the Dollar General, I think it was about 3 dollars. It lasted at most a few days. Burned up really fast. Pretty disappointing.

Obviously, there is a difference between expensive candles and the cheap ones.

Here is my question: I shop at thrift stores and garage sales a fair bit. You can usually get a big pillar candle or a jar-candle at any thrift store for under 5 bucks…but how would you know if it’s the “good wax” or the cheap dollar-store stuff that will just burn up in no time?

I just think it would be cool to know how to judge good, long-burning wax from cheap, fast-burning stuff, if that’s possible. Is there a way to tell without actually lighting it?

Not sure - but I’ve noted that “9 hour” candles that are sold for use in camping lanterns are much more dense, and compressed possibly. They drip quite a bit less as well.

Check the label on the bottom, it usually has the burn time listed.

What I want to know is if there’s a way to tell which candle will burn ‘nicely’ and which one will smoke and cover everything in your house with a thin black film.

And not to hijack this thread, but has anyone tried the wooden wick candles?

Are you talking about the “crackling wick” candles? If so, yes, I have. The sound is more like static than an actual fireplace, but it’s interesting.