Observation: this looks like piss} Question: is this piss?} Hypothesis: this is probably piss} Experiment: drink the piss} Analysis: tastes like piss} Conclusion: it’s piss
methylated spirits are the ones used for cleaning, lab grade ethanol needs to be just ethanol or some reactions might fail, however in some badly managed labs you might find mislabeled stuff and have contaminants
still, you shouldn't drink it anyways, as some producers use the highly carcinogenic benzene to make pure 100% ethanol, as distillation with water can only get you up to the 95,6% azeotrope, and some benzene might make it's way in the product
I remember reading about a chemistry teacher found dead one morning. he had a habit of consuming the laboratory's ethanol after hours, and the night before had accidentally poured himself a glass of methanol
I themed the wet bar in my basement as a laboratory. There's a drying rack on the wall that I use to store 15 mL beakers that I use a shot glasses. It's fun. I've also found that a hot plate stirer with a thermometer probe and a vacuum filtration setup makes the best clarified butter easy as a snap!