Bring to a boil, lower the heat and simmer until reduced by 1/3, about 25 minutes.

Bring to a boil, lower the heat and simmer until reduced to 1 cup, about 20 minutes.

Lower the heat and simmer until the liquid has reduced by half, about 10 minutes.

Lower the heat and simmer until reduced to 1 quart, about 2 hours.

The excessive heat produced by the transmission reduced the vehicle's range.

Lower heat to simmer and cook until reduced by about two thirds, 15 to 20 minutes.

Bring to a boil, lower heat and simmer until reduced by two-thirds, 5 to 7 minutes.

Lower the heat and simmer until it reduces to 1/4 cup, about 3 to 5 minutes.

Lower heat and simmer until reduced to 10 cups, about 30 minutes.

Lower heat and simmer until it reduces to 4 cups, about 10 to 15 minutes.