A milk watcher, milk saver, pot watcher, pot minder, milk guard, or boil over preventer is a cooking utensil placed at the bottom of a pot to prevent boiling over of liquids, and especially the burning (scorching) of milk.
A milk watcher is a disk with a raised rim, and is notched on one side (see images). Some milk savers are designed so they can be used with the obverse or reverse side facing up, so they appear to have two notches. The interior of the disk is not level; it slants upward toward the notched side creating a space just behind the notch where water vapor can collect. Water vapor is trapped under the Milk Saver causing the notched side to rise up, releasing the water vapor at the same time circulating liquid around the base of the pot and making a rattling noise.
Read more about Milk Watcher: How It Works, Alternatives
Famous quotes containing the words milk and/or watcher:
“You cannot have power for good without having power for evil too. Even mother’s milk nourishes murderers as well as heroes.”
—George Bernard Shaw (1856–1950)
“I could be worse employed
Than as watcher of the void,
Whose part should be to tell
What star if any fell.”
—Robert Frost (1874–1963)