In the troposphere, temperatures decrease with altitude (air pressure), which is known as the adiabatic lapse rate (9.8 Â°C per thousand feet). While there are different tempeâ¦ratures throughout the atmosphere, there are both increases and decreases in it as one moves upwards.
To easily shred romaine lettuce, stack several washed and dried leaves, roll up to form a cylinder and slice crosswise at 1/4- to 1/2-inch intervals. For best results, do not toss lettuce with dressing until just before serving as the dressing wilts the leaves.
But before washing, when you begin to separate the leaves from a head of lettuce, do so with care, pulling them apart at the base of the stem. Using a salad spinner to remove excess water before you freeze the lettuce is an effective way to reduce the moisture. You can then blot the lettuce dry with paper towels.