You can ripen kiwifruit by letting them sit at room temperature for 3 to 5 days. Kiwis are ripe then they are are slightly soft to the touch. You may also store ripe kiwifruit in the refrigerator for a few days. By storing them in a plastic bag in the refrigerator, you will help them retain their moisture, and they will stay fresh for 2 to 3 weeks. Pears are easily bruised, so handle with care.
Cool temperatures slow down the ripening process and warmer temperatures speed it up.
You can speed up the ripening process by placing the pears in a brown paper bag, which only takes 2 to 5 days. You can store pears for 3 to 5 days by placing them in a refrigerator. Bartlett pears turn from green to yellow when ripe - but most pears don't change color when ripe. D'Anjou pears do not turn yellow when ripe. Instead, their color will turn from a dark green to a lighter shade of green.