- 1 decade agoBest Answer
There are serval ways for testing the egg's freshness.
Eggs are passed ove a strong light
2) Plate test
the egg is brick on the plate if it is fresh, the egg yolk is in dome shape,egg white is thick
3) brine Water test
the egg shinks it is fresh.If is float,it is stale as the air space has enlarged and water has evaporated. (姐係你講既鹽水test)Source(s): 我自己打架all都係!!!絕對信得過~我讀 home e