Blow-off tube

[marchio-93]

Hello! My blow-off tube fell out of the jar with the sanitizing liquid, this happened as soon as the beer began to bubble i think. So the first 15 hours of fermentation have been exposed to oxygen. Can oxidation result from this?
Will it effect the final beer?
Can the yeast all the oxygen introduced in the first 15 hours?

It is an APA with 3 g/L of hop in whirlpool

 

[cubalz]

As long as the yeast has begun active fermentation and creating positive pressure, you will be ok. The positive co2 pressure will keep the oxygen from going through the tube and into the wort. Just relax, the beer will not have been affected.

 

[marchio-93]

As long as the yeast has begun active fermentation and creating positive pressure, you will be ok. The positive co2 pressure will keep the oxygen from going through the tube and into the wort. Just relax, the beer will not have been affected.

but when i opened the fermentation chamber the fermenter was not in pressure, the positive pressure began when i put the tube in the jar with the liquid

 

[cubalz]

What I mean by positive pressure is that the fermentation had begun and the Co2 began to flow through the tube. There was Co2 pushing out continuously making ingress of oxygen unlikely.

 

[str1p3s]

some people add another dose of oxygen on purpose 12 or hours after pitching just to make sure the yeast have enough. i agree that little if any made it in though

 

[day_trippr]

Agreed, a bit of passive O2 exposure when the yeast have just begun chowing down isn't going to hurt the beer.
Carry on!

Cheers!