So a friend of mine bought 3 ounces of shatter(internet) we will leave out the distributor for now the shatter was very light yellow it was very Ductile kind of like plastic. You smoked it and it exploded obviously not purged correctly. So I filmed it on a Pyrex and heat pack (I don’t have vacuum system). Product now shatters(breaks like glass)an indication that I have done a significant job removing impurities. No matter what I’ve done so far that rubber taste is still there even though I have significantly reduced the amount of solvent. I have played around with a few Grams and different heats and etc nothing gets that taste out.(lipids? Metals?) I’m currently looking into using the winterization process but due to funds I only have access to pure medical grade methanol. I understand all the risks associated with methanol consumption and I know I will need to make sure I get it all out. Does anyone have any ideas as to why it taste like burnt rubber it seems like this is a reoccurring flavour on botched runs(forum repeat). Also can anyone give me tips that don’t involve vacuum to ensure that my methanol is fully purged. Is this a lost cause ? will I ever get that stank burnt rubber flavour out of my extract. thanks