In this work it is shown the application of an experimental method for estimating of time in bin cooling in a silo (7.40 m diameter, 7.60 m height) of com from continuous full-hot dryer. The cool-front evolution was observed with a measuring and acquisition data system. Ten NTC temperature-sensing devices were installed as pairs 2 m apart in a central cable type bus in parallel. The temperature was measured in an autonomous and intelligent module that converts the received signal to digital values and transmits it under demand to a central collector, allowing the access to periodic and request consults. The grain mass temperature was established at 11.8°C after 38 accumulated hours of cooling. This monitoring was given an adequate control of time of cooling needed to carry the grains until temperatures that ensure optimum conditions of conservation. On other hand, when the temperature for sure storage was reached, the following of this variable in real time allowed to observe tends and to analyze the changes on historic information of temperature inside the bin.