Smallholders Insurance from Greenlands

Author Topic: Brinsea 56 EX Humidity Setting  (Read 143 times)

Marches Farmer

  • Joined Dec 2012
  • Herefordshire
Brinsea 56 EX Humidity Setting
« on: June 11, 2021, 09:51:14 am »
Just purchased one of these as spares are no longer available for my old Covatutto 54s.  I note the factory set humidity default is 20% and the instructions suggest 40-50% humidity for chicken and turkey eggs.  As 50% is actually 25% higher than 40% I was wondering if anyone else who has one could advise on what humidity level they find most successful.


  • Joined Dec 2011
  • Gascony, France
Re: Brinsea 56 EX Humidity Setting
« Reply #1 on: June 11, 2021, 12:32:11 pm »
The 'standard' figure used is 45% and that's what we start with. But it's all down to the porosity of the eggs and when we lived in damp houses invariably we ended up running as dry as possible after seeing that the air sac wasn't developing quickly enough. I've never heard of a problem due to low humidity, only high, when the air sac doesn't develop sufficiently and the chick can't manoeuvre to pip.

Marches Farmer

  • Joined Dec 2012
  • Herefordshire
Re: Brinsea 56 EX Humidity Setting
« Reply #2 on: June 11, 2021, 04:51:14 pm »
Thank you - I'll give 45% a try.  Many years ago the folks at the Wernlas Collection said they never added water to their incubators as they considered the UK, with its maritime climate, was humid enough to provide a good hatch and they'd found added water made the chicks too big to hatch.  Humidity seems to be a balancing act .....


  • Joined Sep 2020
  • Norfolk
Re: Brinsea 56 EX Humidity Setting
« Reply #3 on: June 11, 2021, 10:45:55 pm »
45% for me too, increasing to 60% for the final 3 days.


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