there are two membranes. The outside membrane just inside the egg is white.
The inside membrane against the chick will appear brown if dried out.
As long as its pipped and you have good ventilation it should be fine to let it try to hatch a little longer.
The inside membrane against the chick will appear brown if dried out.
As long as its pipped and you have good ventilation it should be fine to let it try to hatch a little longer.