| The other piece of equipment is a device called a hydrometer, which measures alcoholic strength. |
| In Europe, Gay-Lussac's hydrometer and tables are chiefly used for alcoholometric testing. |
| Invest in a hydrometer, which measures the specific gravity of liquids, available at winemaking supply shops. |
| The surface level of the water will mark the specific gravity level and the potential alcohol level, both labeled on the hydrometer. |
| The maple leaf symbol is sandblasted on every approved hydrometer and glass thermometer together with the two last digits of the year. |
| Here the syrup is boiled carefully to attain the correct sugar density as measured with a sugar hydrometer and filtered again. |
