Grasă de Cotnari is usually a botrytised sweet wine (although semi-sweet varieties are also made) and usually has a high residual sugar content, sometimes as much as 300g/liter. The harvest of 1958 reached the maximal sugar content in the history of this wine of about 520g/liter. The wine is made primarily from a grape variety also called Grasă de Cotnari. or Grasă (an old white grape cultivated in the Furmint group), although some additional Fetească Alba is allowed. It is produced from grapes that fully reached and exceeded their maturity, hence the high residual sugar content.