Durin Berries are non-effective berries. They can be used to make Poffins or PokéBlocks. The poffins or PokéBlocks made from Durin Berries are usually very bitter and a tiny bit sour. In Generation III to get a Durin Berry, tell the Berry Master's wife on Route 123 the phrase: Cool Latios. In Generation III, it takes 3 days to grow when planted and will give 1-2 berries when fully grown. In Generation IV, it takes 5 days to grow when planted and will give 3-15 berries when fully grown.