Originally Posted by MARCELO178
I am thinking in put the lid but not close totally, letting the CO2 go out, after 2 or 3 days I could twist the lid totally and wait for 2 weeks.
NOT A GOOD IDEA !!!!!!!
I do not know why you want to seal up the beer to begin with??
A slight leak in the lid will not harm your beer and will allow fermentation CO2 as well as off gassing to take place without causing any thing like the following:
Fermentation can take a lot longer than 2 or 3 days...
If you screw or twist your lid on a beer that has not COMPLETELY fermented you are looking to have a major problem. The entire batch will build up pressure and blow your fermenter apart and beer all over the room.
Before sealing your beer in a fermenter, bottles, kegs or whatever container that has an airtight seal fermentation MUST-MUST-MUST first be finished.
Test with a hydrometer and do not attempt closing the fermenter (( WHY?? )) until the specific gravity has stayed stable for at least three days. If you don't have one get one. You could also wait 3 weeks or more to be sure fermentation is complete, but a hydrometer is essential if you want to make beer.
The only time doing what you plan on doing is done is by expert brewers who know exactly what they are doing and know that their kegs can contain the pressure that is created.