Arnaud Mortet said that 2017 was a year of high ripeness for him, but less than 2018. He did a green harvest in 2017, removing half the grapes in the young vines that had been affected by the 2016 frost (and so were on their way to abundant production in 2017). Even so, he wound up with 43 hl/ha for his Gevrey vineyards. He did no triage though — were he didn’t do the green harvest and there was dilution, he sold that part off.
There was no chaptalization in 2017 (or 2018). Malo-lactic fermentations began in April 2018, a little earlier than usual. (Continue reading here.)