Amnesia: A Machine For Pigs Discussion Topic Part 3

[Vertical]

I always had a notion that damascus rose oil was mixed with the amnesia potion to cover its bitter taste.

EDIT: a reply to Vertical

I think you may be right, but I just re-read one of the "Remember" short stories - "Old Friends".

During the conversation between Herbert and Faraj, the latter one reaches out to the Professor with a plate of sweets, but also warns him: "Careful with the rose flavored ones, they are said to ease your mind, but also make you forget things".

As for me, it seems like the rose oil itself has (in-universe) some amnesia-inducing effects.