-18c is the recommendation for domestic freezers. A lot of vanners use -4c to conserve batteries. I'd think the longevity of the frozen product would be compromised at this temp.
Could someone tell me what freezing point is in a portable car fridge freezer, the numbers I am looking for thank you.
Lance C
Sorry Lance, from your post I "assumed" you were referring to the numbers marked on the control dial of the fridge. In which case it would make a difference.. As for the freezing point, for water it's 0 deg C....