Definitely not the first post on paraffin pillar candles, but here there is a new 'effect' I want to talk about.
These whit-ish lines (also called jump lines) can be an anti-aesthetic trait on some candles (I hate them on glass jar candles), but in some specific cases (like this one) they really give the candle a beautiful textured look making it appear vintage!
The secret? I let the melted paraffin cool down for quite a bit before pouring it in the mould and I have poured it quite slowly.
The white-ish ridges/lines are due to the fact that as soon as the wax touches the mould's walls it hardens. Mould's temperature remains constant and without any external heat source it's impossible to re-melt these lines.