I have been home brewing for over 20 years and occasionally make a 12- 16% brew by freezing some of the water out of the wort. I have used a nitrogen/carbon dioxide mix in the keg to make an interesting drink. I have had a request to bottle the strong brew. Of course it is not possible to brew CO2 into the 16% wort so I saw the discussions about dry ice and remembered that the widgets in the commercial cans contain a patented N/Co2 mix. Before I start to experiment with CO2 widgets I wondered if anyone has had success in adding dry ice to bottled wort to put the fizz in.