Here the syrup is boiled carefully to attain the correct sugar density as measured with a sugar hydrometer and filtered again.
That first day of boiling ended with a broken hydrometer , very little syrup and a scorched evaporator pan.
While tasting the grapes is a fine way to know when to harvest them, also invest in a hydrometer - which measures the specific gravity of liquids - available at winemaking supply shops.
At this point bubbling will cease through the air lock and the hydrometer will show a reading of 1000.
The surface level of the water will mark the specific gravity level and the potential alcohol level, both labeled on the hydrometer .
The other piece of equipment is a device called a hydrometer , which measures alcoholic strength.
His training specialties, however, are in the hydrometer and fathometer.
In the 1770s, after considerable debate about the most efficient and reliable ways of determining the specific gravity of liquors, the hydrometer was considered better than the ordinary balance.
Density can be determined quickly and with reasonable accuracy by floating a calibrated hydrometer in the juice.
This is a hydrometer which is based on the principle that dissolved substances will cause a body to float.