Yesterday I opened a beer from my second batch, a dunkelweissen that was 20 days in fermentor and have been only 7 days on bottles, I put it on fridge for 24 hours before opened it, I was expecting a flat beer but I wanted to try it on different phases, to my surprise the beer was perfect I could not believe what great beer I brewed but now I am concerning if the beer will still gaining more CO2 over the next weeks and make it over carbonated, if this true how I can stop it now? also is it normal for a dunkelweissen to be ready after only one week?