[sgh]

Not big size...opened up the pack must finish all while it's still fresh.

Even keeping just overnight, it doesn't taste good.
I have experienced it many times. 

After steaming the fishballs shrink until quite small.
Can finish at one go.

Agree that is why I make a small cut just enough space for the ball to come out then rubber band close the gap put in fridge. Of cuz compared to air tight the taste is different but no choice want to last more meals is like that