Tonight, while having a cup of hot-chocolate, me and my friends had a little discussion about the foam/bubbles/froth formed on the top of the drink.
While I said that it should be referred to as froth, they were referring it to as foam. Now, all my childhood, I was told that foam is used with reference to their origin because of soapy liquids; I can't accept that it should be foam.
My dictionary shows the same meaning for both the words and hence, my question:
Which of the two words, froth and foam is preferable when referring to bubble formation in drinks?
Best Answer
Froth is more common, although both are acceptable.
Note that one exception is that when talking about beer one would normally use the word head, for example:
Note that foam is not used exclusively when talking about soapy liquids: