Sorry can´t answer your question - I like bitterness and in fact it is healthy, we get to much sour food. Recent research shows it helps against cancer...

Yes... Unfortunately I agree. But I am old. Might be future generations prefers video.. Reading is soooo boring...
However I did manage to see almost half of the video, I am not THAT old!
It is funny how time in slow presentations with breathing time sometimes seems to be faster... BBC masters the art.

Julia: “If no one is watching you can take the sides of your hand and push it together”
And then she did it. On TV.
Wonderful!