no
Yes! Yes it is =)
This type of cream has been heat treated as part of the processing
Apparently, once the can is opened, it is just like any other cream and should be used up with a few days. See Related Links. Look for curdling and off odors or flavors.
Half and half
Yes you can. If you are in the UK then here's a number for you to call 0808100 56 56. In Australia you can as well..