What Does Simmer Mean? Simmer is technically the heat that is just below the boiling point of the liquid. A simmer is reached within a pot on the stove when the liquid is hot and just has a bubble or two forming at a time and reaching the top of the liquid before popping.
Decide how much overhang you want from your tablecloth. For most purposes, an overhang or drop length of at least 6 inches (15cm) is appropriate. A shorter drop length may make the tablecloth look too small for the table.
1 For a formal occasion, such as a wedding, you want a longer drop. Have about 15 inches from the edge of the table to the bottom of the tablecloth.  For a casual occasion, like a low-key birthday party, you do not need as long of a drop.