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The primary use for this extremely fine diffusion stone is to force carbonate beverages with carbon dioxide or to oxygenate wort using an oxygen regulator. The holes in the stone are too fine to use it to aerate the wort with an aeration pump. However, compared with the 2.0 micron stone, the 0.5 micron stone will carbonate beer quicker and with a longer lasting head because the bubbles that it creates are smaller

.5 Micron Diffusion Stone

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