Pacific Rim Vin De Glaciere RieslingWe pick the organic Vin de Glacire Riesling grapes at around 22. 5% sugar in order to preserve the natural acidity of the grapes. The grapes are then frozen and pressed frozen, resulting in a concentrated press juice (about 36% sugar) and a low yield (about half our yield compared to non frozen grapes). The concentrated juice is fermented until we reach 18. 5% Residual Sugar.