Context : Baade ’ s window ( BW ) is one of the most observed Galactic bulge fields in terms of chemical abundances .
Due to its low and homogeneous interstellar absorption it is considered as a calibration field for Galactic bulge studies .

Aims : In the era of large spectroscopic surveys , calibration fields such as BW are necessary to cross calibrate the stellar parameters and individual abundances of the APOGEE survey .

Methods : We use the APOGEE BW stars to derive their metallicity distribution function ( MDF ) and individual abundances , for \alpha - and iron-peak elements of the APOGEE ASPCAP pipeline ( DR13 ) , as well as the age distribution for stars in BW .

Results : We determine the MDF of APOGEE stars in BW and find a remarkable agreement with that of the Gaia-ESO survey ( GES ) .
Both exhibit a clear bimodal distribution .
We also find that the Mg-metallicity planes of both surveys agree well , except for the metal-rich part ( [ Fe / H ] > 0.1 ) , where APOGEE finds systematically higher Mg abundances with respect to the GES .
The ages based on the [ C / N ] ratio reveal a bimodal age distribution , with a major old population at \sim 10 Gyr , with a decreasing tail towards younger stars .
A comparison between APOGEE estimates and stellar parameters , and those determined by other sources reveals detectable systematic offsets , in particular for spectroscopic surface gravity estimates .
In general , we find a good agreement between individual abundances of O , Na , Mg , Al , Si , K , Ca , Cr , Mn , Co , and Ni from APOGEE with that of literature values .

Conclusions : We have shown that in general APOGEE data show a good agreement in terms of MDF and individual chemical abundances with respect to literature works .
Using the [ C/N ] ration we found a significant fraction of young stars in BW which is in agreement with the model of Haywood et al .
( 2016 ) .