When heavy cream expires (refrigerated or not, although it will generally keep longer in the refrigerator due to the cooler temperatures), it will go sour. This can be anywhere from discoloring, usually to an off-yellow color, to a rotting or sour smell, and - eventually - congealing and hardening into clumps.
If homemade, caramel sauce will need to be refrigerated, due to the heavy cream and butter in the recipe. However, if it store-bought and processed, it should be ok to leave out unrefrigerated.
yes, you can buy heavy cream at the supermarket.
No Sour gream and heavy cream are two different items.
no. typically, whipping cream has more sugar in it.
You can not make heavy cream from dry milk.
yes
Heavy cream
Light cream is sweet cream with less butterfat than heavy cream. I think in the UK light cream is called single cream and heavy cream is double or whipping cream.
If you want to make cream out of milk, it will be lighter and more delicate than if you made it out of heavy whipping cream. Heavy whipping cream is better suited for cakes and heavy desserts, while milk can be used for a lighter icing.
No, whipped cream can only be made from heavy cream or heavy cream that is marketed as "whipping cream." yay
yes it just makes the iced cream more heavier
No. Sour cream and heavy cream have different functions, and produce different flavors. If you don't have sour cream or heavy cream handy, find a cheesecake recipe that doesn't call for them.