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| HYDROMETER | |
| What is it? | |
| In simple terms it measures how dense a liquid is, in reality you can use this to calculate how much alcohol a liquid such as beer or wine contains . . . now that's more like it. | |
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|
| HYDROMETER | |
| What is it? | |
| In simple terms it measures how dense a liquid is, in reality you can use this to calculate how much alcohol a liquid such as beer or wine contains . . . now that's more like it. | |
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Put the hydrometer in water and it will float at an
exact height, this will be marked on a scale inside as 1.000, this is
called 'Specific Gravity'.
If you were to add sugar to the water it will float higher as it will now be denser (thicker). In a thinner liquid such as pure alcohol it will float lower.
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| In home brewing, the difference between the starting gravity and the final gravity will be (using a mathematical formula) the final alcoholic percentage. | |||
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Here's the hydrometer in plain water at room temperature, as you can see it floats at the 1.000. When reading it's important to read level with the liquid surface and not where the liquid clings to the side. | ||
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It's here again, this time floating in the pre-fermented beer, the starting reading is 1.030 Now we wait until fermentation has completed then we can take the 'final' reading'. | ||
Reviewed by Jimmy
Kit purchased from
