I learned my first lesson of the year today. Spent 4.5 hours boiling about 40 gallons of sap on my homemade evaporator today. Pulled it off because I ran out of sap finished in a turkey fryer. Was getting it to about 216 went inside for 3 min came back out and had a huge boil over. Ended up bottling 1 quart. So angry right now I could smash something.