Wax On, Pot Off

If candles are important to kobold society, I have an idea that might disrupt their production... or at least make sure there's an unpleasant surprise waiting for our enemy. Take that cinderbrew. Drop some in those large vats of wax the kobolds are prepping at the top of that hill. It's a powerful explosive. It burns aggressively, so try not to drop any. It should certainly make any candles made with that wax quite feisty, once they're lit.