There is no fluid that runs into those fins, the fins are a heat sink they are made to pull heat off the tube running them to create a larger surface to be air cooled. It would interesting to see if you could make a air-cooled wort chiller
Plus it looks like coated copper, I'd pump some star-San into it, let it sit about 15 mins, see what comes out, could be a great hybrid chiller for your wort as well as long as its clean copper in the inside
That would make one badace prechiller if your worried at all about sanitation issues! You could permanently mount it in a bucket with fittings, would look sweet
I'm trying to finish a Baltic porter recipe,
I know that I want to use
4lbs of munich
1/2 lb of choc. Malt
1/2 lb of CaraBohemian
1/4 lb of Black patent
I'm thinking of using 4lbs of pale malt dme to round it out.
So first question is is that enough or too much dme
Second Im thinking...