After checking alcohol levels of the wine (which we need to put on our labels) it is time to check other parameters again like the pH, TA (total acidity), and residual sugar.  We have a very simple method for testing residual sugar.  Do you recognize the bottle of clinitest tablets?   They used to use these for checking sugar level of urine – and it works the same for sugar levels in wine.  Add tablet to sample and compare to a color chart for sugar levels.  Easy for white wines – less so for wines with lots of color pigment so sometimes you need to take out the color first before you test.   Most of our wines are dry at less than 2 gm / litre sugar but we like a little more in our Rosé and it is a tasty 4 gms/litre.