RESULTS OF SCIENTIFIC RESEARCH IN PRACTICE. 217 



" 4. The pure cultivated yeast possesses in a marked 

 degree the properties of the original yeast previous 

 to contamination, both as regards the degree of 

 attenuation, and the taste and keeping properties 

 of the beer. 



" o. Different races of normal bottom-fermentation yeast 

 (Sacch. cerevisice) exist with specific properties, 

 which are constant for each race and form dis- 

 tinctive characteristics." 



Professor Aubry, director of the Scientific Brewing Station 

 at Munich, wrote (1885) 1 : "In addition to the breweries 

 mentioned (Spatenbrau and Leistbrau in Munich), a large 

 number of breweries at home and abroad have carried out 

 experimental fermentations with pure Carlsberg yeast. The 

 results which were expected were naturally not attained in all 

 cases, the degree of attenuation was found to be too low in 

 the greater number of cases, 2 the taste was not the one locally 

 desired, &c., &c., but all the reports which reached us were 

 favourable as regards the keeping properties, brilliance, and 

 the freedom of the beer from any taste of yeast. The good 

 properties of the yeast have brought about its permanent in- 

 troduction into many breweries, as, for instance, the Liesinger 

 brewery, at Liesing, near Vienna. In the present brewing 

 season the Spaten brewery in Munich has made extensive 

 use of yeast obtained from Carlsberg, and a great part of the 

 pitching-yeast used in the brewery of the Franziskanerkeller 

 in Munich, during the winter, was also derived from pure 

 cultures of Carlsberg yeast. The course of fermentation and 

 the results with regard to the taste, condition, and keeping 

 properties of the beer, answered all requirements. The 

 property of giving a somewhat low attenuation appears to 

 be characteristic of the yeast, for it remains constant. 

 The taste of the beer at first differs somewhat from the 



1 Zeitschrift f. d. ges. Brauw., 1885. 



2 Carlsberg bottom-yeast No, 2, a quick clarifying species. 



