title_body: Mash overflows and lid comes off distiller
upvoted_answer: Lots of people refer to this as a "puke". It's like the distiller is puking.
  
  I managed to solve my problem (Currently half way through the first batch ;-)). I used a "distilling conditioner" AKA defoaming agent purchased at my local brewery store
  
  I also degassed the wort using a drill and a whisk, however this alone was not enough. 
  
  Note: I didn't use any of the below advice, just leaving it here for completeness
  
  Other advice I've gotten on other forums includes clearing the wort better (E.g using cold temperature + time or a clearing agent), and putting a few rashing rings or stones inside the distiller as the airstill's inside may be too smooth.