I came across a video on face book the other day. How a group of people were caught by the officers doing home made drinks and alcohols. With cheap  harmful substances that can easily caused harm to the human system.
Due to the Greed of making more extra cash in this celebration season because alot people will stock their homes with alot of drinks for the season.
The painful part is the environment wasn't even pleasant just imagine. And apart from the harmful substances alot of harmful things can still affect due to the unkempt environment. And is not easy to tell the difference from the real company drinks you need the help of professionals. So please we should be careful on things we put in our body. In order to prevent those problems listed by the (op).