19/06/2026
Community Question: "My incubator won't hold humidity in winter and the air cells look too big"
This one comes up a lot once the cold, dry air arrives. Cold air holds less moisture, so even a well-set incubator can run drier than usual — and the eggs lose weight faster than they should.
The fix isn't to chase a humidity number. Weigh a few eggs instead. Over the first 18 days they should lose around 13% of their starting weight — steady, not sudden.
If they're dropping too fast, add water surface area rather than more depth: a second water channel, or a clean damp sponge sitting near (not touching) the eggs. Warm water lifts humidity quicker than cold.
Candle around day 7–10 to check the air cell against a development chart. Small adjustments win here — change one thing, then wait and watch.
Stuck on a tricky hatch? We're always happy to help.