Today's tipp from Germany relates to eggs - it's an oldie but for new players:
Cooked or raw? If you have accidentally placed raw and cooked eggs together and need to work out which is cooked and which is raw then use the following trick to identify: Turn the eggs just around its own axis. The boiled eggs spin faster and more evenly, since the cooked egg yolk is fixed.
As an aside - to tell if eggs are fresh or stale, place them in a deep bowl of water. fresh ones stay on the bottom, stale ones float as they contain more air.
