File talk:Checking the specific gravity.jpg
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In the picture shown the homebrew is using a thermometer not a hydrometer. He is simply measuring the temperature, not the specific gravity.
- He appears to be using both. The one with the dial might be a thermometer, the one that is floating in the middle is the hydrometer. -- Borb (talk) 11:46, 4 April 2009 (UTC)