Sometimes after filling putting the tip back on can force juice down into the cup due to the air-tightness of the design.
All I do when this happens is after just getting the tip started in the tube is to squeeze the tube at the top a little. This temporarily makes the tube slightly oval breaking the air lock. Works like a charm.
All I do when this happens is after just getting the tip started in the tube is to squeeze the tube at the top a little. This temporarily makes the tube slightly oval breaking the air lock. Works like a charm.