A running solera, topped up each year since 2016, so no two bottles are quite the same blend. Riesling-led, with a handful of other Alsace whites, from the gravel of Scherwiller and the north slopes of the Frankstein. A year in century-old foudres, then a minimum five years on lees before disgorgement, zero dosage. Each vintage ages alongside the older wine already in the blend, which is where the mirabelle, apricot, toasted almond and brioche come from. Fine bubble, long saline finish.