sentences:  During the 1971 harvest in the Rheinpfalz, a parcel of Trockenbeerenauslese Siegerrebe recorded 326 Oechsle, which is more than twice the minimum level of ripeness needed for a wine to qualify as Trockenbeerenauslese.Despite high must weights the wine tends to be very low in acid.The acid tends to drop rapidly in the grape as ripeness approaches..