Sciency people needed

[El_Machinae]

Probably freezer ghosts, then.

 

[nonconformist]

If I use unfiltered it gets hazey if I use filtered it gets clear.

Limescale, geezer.

 

[plarq]

Surface energy?

 

[The Fjonis]

Looks like you might want to change your freezer's temperature, since ice spikes hardly ever form at temperatures below -10 degrees Celcius.. which isn't really sufficiently cold for a "real" freezer.