To do any of what you are talking about you must be refrigerant certified. While many refrigerants are ozone safe, you are still supposed to recapture them before this lines are cut. Especially the older refrigerants like R-12 and R-22. There are many older Window units and refrigerator/freezers...
I too have wanted to try this since I made my first batch of cider. I mostly brew beer... But last fall I decided to take some local farm cider (blended pressing of all their apples and UV sterilized .. No other pasteurization). Threw one of my beer yeast strains on it, let it sit 2 months in...
I know this thread is a year old.... But I use popcorn all the time in some brews. Especially my cream ale. I've done up to 4lbs in a cheap air popper from a big box store. It takes approximately 20 minutes to pop 2 lbs and 2lbs popped fills a 10gallon igloo or Rubbermaid cooler mash tun. I pop...