
Freezing injury
Freezing injury can be serious. Pears may be able to withstand several days or even weeks at -2 °C (28 °F) or lower, but are irreversibly damaged when the frost is more severe. The frozen tissue has a glassy appearance that can be limited to the neck and outer parts of the pear. From the outside, the skin looks dark. In moderate cases, a slow warming can save the pears. But in more severe cases the flesh soon becomes watery, soft and with a brownish colour after thawing.