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Isn't the Wort in the Sight Tube Susceptible to Infection? |
The risk here is miniscule. The convection currents in the boil will find their way into the Sight Tube and there will be an exchange of wort inside the IHS Sight Tube over the course of a 60 minute boil. In effect, the wort inside the IHS Sight Tube will be hot enough to sterilize the wort. In all of the field tests over hundreds of batches of beer, we have never seen this become an issue. If you just can't shake the feeling that something bad is happening, you can always blow into the top of the Sight Tube about half way through the boil to blow out the wort that was in the tube, then gently allow wort to come back up the tube. This essentially exchanges the wort in the tube for wort that has been boiled for 30 minutes.
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