I once watched a friend candle his ears.
We did, indeed, cut the candle open and view the debris.
The bottom of the candle was filled with nasty, smoky, yellow wax. But, was it earwax? No way to tell, unless we were to burn a candle in a glass and see if it had the same kind of crap in the bottom -- and unless it was a lot cheaper, that wasn't going to happen.
Ear Candles are made of wax-impregnated
linen. The theory is that the
hot smoke sinks and enters the
ear canal, loosening and melting the wax. Then, as the flame consumes the candle, it creates a
vacuum, sucking the wax back up into the point of the
cone.