I refilled this carto this morning before coming to work, been using it non stop for about a week. All the same juice, today even though I know it is just about full I am getting muted flavor and an ever so slight carto taste. I am assuming the carto is about shot. So my question is, is it worth doing a reverse spin to get the juice out to put into a fresh carto or should I not even bother? I don't want to possibly ruin the taste of another carto..