I am using a rotary evaporator ('rotovap') in my lab mainly with dichloromethane as a solvent.
Usually between experiments I clean the receiving and boiling flasks with a brush using soap and water and finally rinse with alcohol. For the condenser I try to do the same, but it is next to impossible to brush the water serpentine.
I want to try and distil some coffee and tea for consumption, but I am afraid of any possible contaminants.
What is an efficient and safe method to clean the glassware?