I always make sure the eggs remain clean and hydrated after I cut.
keep a spray bottle in the incubator so you can rehydrate the eggs ( with no thermal shock ) if the white starts to get a little think and gunky and if you see any sign of mold or infections you can try and remove it with a q-tip.
This is why we generally advise not to cut until the first one pips naturally as you are basically cutting a hole in the eggs defenses to let nasties in.
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