Rosin 90'C

<p>It&#39;s 4g not 5 as i mentioned at the beginning... I got 1,2g of rosin so that&#39;s a yield of 30%...</p> <p>Grinder kief is very dirty so i try to get my hand&#39;s on clean resin head&#39;s via dry ice, but that&#39;s not easy...</p> <p>710ISTHENEW420</p>