Steel inox , under vacuum and under pressure  , 138 º max temperature working programmer , Internal capacity n. 3 trolley  , internal dimensions : diam. 1300 x 3185 mm. , 4975 liters , steam feeder by electric boiler year 2011 ( very less used ) 60 kw equipped with 4 resistors ( 15 kw each/1 ) , water filter ;