COLD EGGS poach best, it keeps the white nice and tight, fresh is a must, at some points in the year the hens don’t lay good eggs and you end up with water whites,I poach around 100-150 a week,If I didn’t put the eggs into the walk in fridge at work the environmental health would cut my balls off for it with a rusty knife. Clingfilm is ok for quail eggs as they can be a pain in the arse, nice if you add some truffle oil to them before you poach, Duck eggs in the water Bath 70 degrees for 1 hour, you could always buy the book Egg by lyndsay and Patrick Mikanowski which is a cracking book. 😆