long fermentation 😳

[MCHB]

Hi everyone
I am brewing an 18 liters batch with s-04 yeast and OG: 1.060 , on 17 or 18 celsius temperatures, 4 weeks finished but it is bubbling yet every 5 minutes, should I wait more until stop bubbling or fermentation is over? note that i didn’t make starter.

 

[VikeMan]

Chances are very good that attenuation is finished, and the bubbles you're seeing are just continued off gassing of CO2.

To be sure, you should measure gravity with a hydrometer, and then again two days later. If the readings are the same and close to the expected final gravity, then attenuation is finished.

 

[day_trippr]

fwiw, without checking you'd never know that S04 likely hit FG by the 5th day post-pitch

Cheers!