Some people prefer to drink their black teas with milk. There is much debate over the merits of pouring tea into milk or adding milk to your cup of tea, however pouring milk into a a cup of tea at near boiling temperatures can scald the milk (denaturing the proteins), giving your cup of tea an odd flavor. It is therefore best to add your tea to a cup that already contains the milk, much like tempering the egg base when making custard in order to bring it up to the proper temperature without ruining it. Just remember, if you also like lemon in your tea, don’t combine it with milk as it will cause the milk to curdle. As for using cream with tea, I would suggest not. Cream is too heavy for tea and can even bring out the astringency of tea while dulling its flavor.