In Australia, Blueberries are my favourite berries. Every year I organise Blueberry picking trip to one of the local organic blueberry farms.
The blueberries can be stored fresh very well at low temperatures for up to 1 month. They don’t just stay fresh but they also retain all their qualities that provide health benefits. There is research just on that, and ‘The results suggested that sufficient available energy status and a stable enzymatic system in blueberries collectively contribute to improve chilling tolerance, thereby alleviating pitting and maintaining quality of blueberry fruit in long-term cold storage.’ (Food Chemistry, Volume 164, 1 December 2014, Pages 493-501).