The ABC Cork Vinometer is a simple, inexpensive glass tool that measures the approximate alcohol by volume (ABV) of dry, finished wine using capillary action.How to use it:Fill: Pour a few drops of your wine into the small funnel at the top. Wait for a few drops to trickle out the bottom of the capillary tube.Invert: Turn the vinometer upside down and place it on a flat surface.Read: The liquid will drop down the tube and stop at a certain point. The line it stops at indicates your ABV percentage.Pro-Tip: Vinometers only work accurately on completely dry wines (0% residual sugar).

If your wine is sweet or contains residual sugar, its thickness will cause false, lower readings