  The SINFONI data reduction pipeline, as part of the ESO-VLT Data Flow System,
provides recipes for Paranal Science Operations, and for Data Flow Operations
at Garching headquarters. At Paranal, it is used for the quick-look data
evaluation. For Data Flow Operations, it fulfills several functions: creating
master calibrations; monitoring instrument health and data quality; and
reducing science data for delivery to service mode users. The pipeline is
available to the science community for reprocessing data with personalised
reduction strategies and parameters. The pipeline recipes can be executed
either with EsoRex at the command line level or through the Gasgano graphical
user interface. The recipes are implemented with the ESO Common Pipeline
Library (CPL).
  SINFONI is the Spectrograph for INtegral Field Observations in the Near
Infrared (1.1-2.45 um) at the ESO-VLT. SINFONI was developed and build by ESO
and MPE in collaboration with NOVA. It consists of the SPIFFI integral field
spectrograph and an adaptive optics module which allows diffraction limited and
seeing limited observations. The image slicer of SPIFFI chops the SINFONI field
of view on the sky in 32 slices which are re-arranged to a pseudo slit. The
latter is dispersed by one of the four possible gratings (J, H, K, H+K). The
detector thus sees a spatial dimension (along the pseudo-slit) and a spectral
dimension.
  We describe in this paper the main data reduction procedures of the SINFONI
pipeline, which is based on SPRED - the SPIFFI data reduction software
developed by MPE, and the most recent developments after more than a year of
SINFONI operations.
