experimented on a batch of coloured sudafed , i didnt remove all the colour, but generally got a fair bit out,leaving a grey tint....i thought i,ll beat this...hypo cook,everything looked perfect from start to finish...lovely yellow oil etc...cooked/distilled/PH, in the pyrex for evap...lovely..just about right and fuk sake,there it is fukin blue..destroyed the lot..how can it hide like that the sneaky bastard..i have had success with dry cleaning fluid in removing the colour, anyone have any ideas or a better mouse trap..cheers