I have a one car garage and I think I might get a setup off ebay to make bio. What are the good and bad points of making it in the garage or should I not do it there at all?
Check the classifieds, I am selling a complete system. As far as your question, fumes can be a problem in an attached garage Meth can be very nasty stuff. I brewed mine in a detached garage with plenty of ventilation. I kept the door open and ran a hose from the top of the mixing tank outside to help vent.