I love the fresh orange zest. The more of the white stuff under the zest that you use, the more of the bitterness you will get...
“Altogether 1420 in the Shire was a marvelous year... The Northfarthing barley was so fine that the beer of 1420 malt was long remembered and became a byword. Indeed a generation later one might hear an old gaffer in an inn, after a good pint of well-earned ale, put down his mug with a sigh: ‘Ah! that was a proper fourteen-twenty, that was!’”
- J.R.R. Tolkien, The Lord of the Rings, The Return of the King