From: Made by Dario Luisi www.historicalrosin.com

A step-by-step video
about how to get your rosin (broken or extremely used) new model'd.A step-by-step video about how to get your rosin (broken or extremely used) new model'd.

Here the steps:
1)You need: baking paper
2)powderfree latex gloves
3)broken rosin
4)preheat your oven at 80° degrees celcius
5)put the rosin on a plate and in the oven
6)wait for about 6 minutes
7)take the rosin out of the oven, detach the osin from the plate
8)get a nice rosin-ball with your hands (wear gloves)
9)put the rosin back on the plate and get a straight basis for your ball.
10)get the rosin get cold
11) done

i once 'cooked' mine. :D tinuro saken ng teacher ko noon. na-curious din ako sa properties ng rosin eh... syempre, non-professional, in-init ko sa lata ng luncheon meat at binuhos sa tea-light candle na lalagyan habang liquid siya at mainit. voila! ahaha...