ooohhhh, be careful of the Sharts with that combo. For me, milk and raw garlic do the trick. We had a contest at work the other night and I had 53 farts in a 12 hour shift (the winner, Thank You). They had to be audible from at least 10 feet away and witness had to give a thumbs up as approval for sound and authenticity. There was a newer female employee out that night who had to endure the pain, she was a good sport and none of us have been sent up to HR yet (what did she expect working at an oil refinery). We even had the scores on the dry erase board for all of management and day shift to see.
Good luck with your Vit C, coffee creation.