When should I harvest raspberries?
Raspberries are ripe when the fruit are fully colored. Also, ripe berries slip easily from their receptacles, which remain on the plant. If possible, harvest in the early morning hours before heat builds up in the fruit. Raspberries are very perishable. When harvesting, handle the berries carefully. Refrigerate or freeze the fruit immediately after harvest. The maximum storage life of raspberries is 2 to 3 days at a temperature of 31 to 32°F and a relative humidity of 90 to 95 percent.