Is trapped air in a counterflow chiller really an aeration risk?

I recently bought a Blichmann Therminator counterflow chiller (I know, extravagant, but it is the awesome).

The instructions say to operate it with the hot wort input facing down, so that gravity causes the wort chamber to fill correctly. They say that if you get a bubble in the wort, it will oxidize your beer.

Really? One bubble? I don't worry much at all about hot-side aeration when moving hot wort around. Why should I worry about a bubble?

Topic aeration hot-side-aeration homebrew

Category Mac

1
answered at

Only till that one bubble is depleted of oxygen. So I guess its a function of the size of the bubble or bubbles. Of course a lot little bubbles will have more surface area and the wort if being spread over a lot of surface area too. Its a wonder there isn't pure cardboard coming out of the outflow.

I think you are probably fine. Certainly where there is hot wort, oxygen and turbulence there is oxidation happening. But its probably minuscule otherwise I would have heard of some many great reviews.

I'd still work my hardest to minimize the flow issues as they describe.

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