It serves to carry out the elementary calculations for the elaboration of a cofoundation, for which it must add the type of Malta, the percentage of use and the yield of the same one. Also one considers the associates who add themselves to kettle of wort, as well as the type of hop having in consideration the percentage of acid iso alpha by variety and the boiled time of. It will only be necessary to fill the squares in target and the results will be detailed in the yellow squares. This table has like example a supposed variety of Malt and Hop, being able to change by which it is desired