incubation in egg cartons

[chickenlady7770]

I have some chicken eggs arriving tomorrow to incubate. This will be my second time. Let's just say I learned a lot the first time around. I ended up with two out of 9. Both

were born with spraddle legs. I have taped them and they are doing well. Here they are doing their exercises. I learned the following:

Don't sit your incubator on the counter above the dishwasher because there is a wild fluctuation of temp and humidity and special care is needed with shipped eggs...
I would like to incubate them upright, but I want to know if it is safe to do so in a janoel 10 incubator? Has anyone done this, and if so, which is better, cardboard or Styrofoam egg cartons? What do you think?

 

[MattCopeland]

Styrofoam will be best. The cardboard cartons will absorb all of the humidity out of the air. I use styrofoam cartons and have a very good hatch rate with a homemade cabinet

 

[MattCopeland]

How I use the cartons in mine. Not sure about your type of incubator.