Can Beer
Canned Beer
noun
A can of beer (ビール) is a can beer or canned beer. Not a bottled one.
The reading is the one you learned with the kanji.
これはジュースじゃないです。缶ビールです。
This is not juice. This is a can of beer.
缶ビールも1本、買ってきてくれない?
Can you also get me a can of beer?
缶ビールはあまり好きじゃないんです。
I don't really like canned beer.