Re: Use of Plastics , food grade
> I called into my local "brew" shop this morning and asked the staffsay
> for their opinion on the subject. As might have been expected they
> providing the product\hose\tubing\utensil is of "FOOD"quality...there
> will be no problem.did you tell them that 95% boiling ethanol vapours would be passing
through the item?
many years ago i made distilled some alcohol it tasted like it came
out at about 30%. it was passed through a food grade tube from a
homebrew shop. when i added water to the alcohol it turned milky,
plastic precipitating out!
> subscribe to that argument which say's...use glass and copper etcis
> whenever possable...and if I have to use plastic...then ensure it
> of Food quality. However, you may well ask....if I go into my Brewis
> shop and buy, say, a three litre measuring jug...how do I know it
> made of a Food quality material?...and so the circle continues.that is what i do. my still is mainly 316 stainless then copper then
glass. i use small amounts of food grade silicone tube to seal some
joints and i use food grade silicone sealant for my gasket on top of
my keg. i am not sure what the exact differences are between normal
silicone and food grade. i know the food grade sealant contains
fungicides in it (dont know if this is the only difference). if your
measuring jug is food grade they should be shouting about it. the
company i work in must use food grade plastics and we have trouble
finding them and can pay over twice the price for them. it might be
worthwhile looking up chemical supply companies posing as a student.