Can you accurately measure alcohol content?

[tharaxis]

I have to ask how you measure with a hydrometer when these E-Z-Caps make a carbonated beverage.

I've made wine before so I know how to use the hydrometer.. and when I started my first 3 E-Z-cap bottles i measured with the hydrometer. All were around 1.09..

THen when done about 8 -9 days later... the hydrometer just floats to the top (and I am guessing because of the carbonation) ...

So I cannot seem to get an accurate density reading.

Do I need to let the liquid sit for awhile or something? Just not sure what I am doing wrong..

Thanks