Another major difference is that isopropyl alcohol is twice as toxic as ethyl alcohol when ingested, and is referred to as an industrial solvent (via Alcohol Rehab Help). This is because ethanol, which is found in wine and beer, is fermented and distilled so that it's safe to drink. Isopropyl alcohol, however, is produced in a lab specifically for the task of sterilisation. According to Alcohol Rehab Help, as little as 1.3 tablespoons of isopropyl alcohol mixed with water can cause sickness.

The body also absorbs isopropyl alcohol extremely fast, with approximately 80% of it being absorbed within 30 minutes and can lead to alcohol poisoning. As isopropyl alcohol is comprised of one more carbon and two more hydrogen molecules, per Healthline, it can't metabolise in the human body as well as ethanol can. Isopropyl alcohol can also cause internal burns, so it's vital that if you or someone else has ingested this type of alcohol to call 911 or poison control immediately.