Application of the “Double Maturation Raisonnée” (DMR) method for quality wine production in Badacsony, Hungary

•Climate change increases the risk of producing late harvest wines.•The greatest risk is caused by Botrytis infection, which can be reduced by DMR.•In our long-term experiment, Botrytis infection rates were significantly reduced in several varieties.•Grape juice quality parameters were significantly improved for all varieties. New grape growing technologies are needed to face the global warming and climate change, especially for the production of high-quality wines from late harvested grapes, which in standalone involved in a high production risk. The DMR technology was applied to the production of late harvested wine specialities in 2012-2021 for 4 white and 2 red wine varieties. The experiments were carried out in 4 replicates per variety and per year, measuring yield, quality parameters and visual inspection of Botrytis infection and withering. The results show that, in accordance with international literature, the DMR method significantly decreased the yield of all varieties, while the must and titratable acidity significantly increased. The advantage of the method was evaluated as a reduction of infection in years of hard Botrytis infection. In conclusion, the DMR method can be used to produce wine specialities of residual sugar content with a lower risk.