Floating Dip Tube + my explanation of how these work

Conical and All Rounder fermenter/keg Ball Float Silicone Dip Tube,304SS Ball Float and Silicone Dip Tube,draw from the Liquid at the top of the tank

Conical and All Rounder fermenter/keg Ball Float Silicone Dip Tube,304SS Ball Float and Silicone Dip Tube,draw from the Liquid at the top of the tank

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Conical and All Rounder fermenter/keg Ball Float Silicone Dip Tube,304SS Ball Float and Silicone Dip Tube,draw from the Liquid at the top of the tank – affiliate link, note that multiple variations of this product may be available, as such a different version may appear at this link

My explanation of how this works…

When we carbonate a keg, pressure is being applied to the keg from the top, via the head space. Beer at the top carbonates first. That carbonation works it’s way down the keg. I’m sure there’s also some movement in the keg that helps to mix things up and distribute carbonation. But just sitting there, I think that mixing is a slow process. However it all works, practically speaking, the beer at the top carbonates more quickly compared to the beer at the bottom. This allows you to serve from the top accessing the more carbonated portion of the keg. It’s also a benefit for clarity because trub settles out heading downward. You can see this stratification in a glass carboy. As the beer starts to clear, the top clears first. I don’t think if this is exactly accurate, but I picture carbonation happening with the same sort of stratification until the beer reaches equilibrium and is equally carbonated throughout.

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One thought on “Floating Dip Tube + my explanation of how these work

  1. Tom

    Many people on Homebrew Talk have found that the intake end often gets hung up just above the level of the liquid.

    Adding a 304 or other food grade stainless steel hex nut is one solution, but finding the right size is often difficult.

    I went with five food grade SS flat washers big enough for the metal tube but too small to slip over the silicone tubing.

    Reply

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