I don't think frothing, shaking or stirring has any impact on flavour unless you warm your juice to 18.5 degrees hold it between your thighs and jump around the room anti clockwise singing the theme tune to night rider while scratching your head and rubbing your belly while winking at the person across the street oh and you have to be naked [emoji23]
And if your still reading to this bit don't do this made up shit because the only thing that can alter the flavour of your juice is steeping [emoji6]