Hello ewingli
I am adding to the OO (Olive-Oil) a juice of red grapefruit which is nicer tan the other two options.
I also found that if I do it second before drinking and I do not add the OO (Olive-Oil) to the juice rather I add the juice to the OO (Olive-Oil) I can drink it ok - don't ask me why it is better but that is so for me.
In general whatever is done in the last minute do not controll over the whole mixture - it is better also with the ES.
Good day