One of the two conditions needed for משקה הבא לאוכל (squeezing liquids onto solids).
How to work with folding a TALIS when one takes it off on Yom Tov which falls out Erev Shabbos and folding a TALIS...
Understanding the problem with making items float in water on Shabbos;
important concepts pertaining to כלים (utensils);