The Symposium was organized by the Hungarian Ministry of Agriculture and the Central Research Institute for Chemistry of the Hungarian Academy of Sciences. This arduous task was coordinated by Dr. Varju to whom I wish to express my appreciation for his whole-hearted assistance. After the Symposium the participants had the opportunity to visit the vineyards and cellars of the 'Balatonboglar' state holding which proved of great interest. The First International EUF Symposium owes its success to the excellent cooperation between the Biintehof Agricultural Research Station and the Hungarian Ministry of Agriculture, including the Central Research Institute for Chemistry of the Hungarian Academy of Sciences. The objective of the Symposium was to present the first results and experience gained with the EUF procedure, so that the papers delivered are only a survey of the present-day state of knowledge. The bulk of the work of editing, including the selection of the articles, fell on Prof. Dr. van Diest, Wageningen, for whose valuable advice and untiring efforts I wish to record my special thanks. Some of the papers presented at the Symposium have already been published elsewhere and they will not appear in this issue.