"צביעה באוכלים" (coloring in foods) - the stringent view of some poskim
(Melting ice.) spreading salt on a icy sidewalk or stairs;
(Squeezing materials.) the correct procedure in reference to wiping up spills on a counter, table or floor with a towel or rag;
Various Examples of Sifting and Straining: When Meraked May Be a Rabbinical Prohibition;