What should the humidity be while incubating chicken eggs?

[Mosey2003]

In my opinion, as long as it doesn't go over 60% for any decent length of time, I wouldn't consider it "too high." Depending on whether I get forgetful or not, mine typically ranges from about 48-56% and I just had a (small) 100% hatch.

 

[aart]

In my opinion, as long as it doesn't go over 60% for any decent length of time, I wouldn't consider it "too high." Depending on whether I get forgetful or not, mine typically ranges from about 48-56% and I just had a (small) 100% hatch.

Is that for the first 18 days?
Do you bump it up after pips?

 

[Mosey2003]

Is that for the first 18 days?
Do you bump it up after pips?

Of course.