4 ms·Is coffee toxic?by solarkraft 4y agoIs coffee toxic?adrianN 4y agoYes, caffeine is quite toxic. Water is also toxic. Toxicity is always dose dependent.feet 4y agoI would absolutely not call caffeine "quite" toxic. It's barely toxic, you need to consume over a gram to do anything really nasty iircadrianN 4y agoWhen it was still easy to buy caffeine powder people regularly ended up in the hospital.feet 4y agoThe parent asked about coffee, not pure caffeine. There is a huge difference in concentration