Improve the story. To control the period of time you want butter < 4 hours and must be < 20oC.Preparation of a validation for the temperature and fuel growth in the use of Butter.
Improvements The butter is used to control the timing <4 hour and the temperature must be. <20oC and provides validation for the growth of bacteria in the temperature and time of use Butter.
Improvement on the control butter period while working to < 4 hours and temperature must be < 20oC prepared validation to the growth of culture temperature and time. In the use of Butter.