LOSSES DI'IMNC MAITINC ^iVA 



the combustion of a certain ainmint of starch into carlMmic acid 

 and water, which escape into the .dr. During ilic kilnin-,' and 

 drying process there is a furtlicr loss ot (h-v matter, tins lime 

 mainly a mechanical loss due to mah dust, whicli fails throuL'li 

 the wire floor into the flre. 



The further figures show that of the nitrogenous materials 

 there is a Httle loss by solution in the stce[)- water, but little or 

 none upon the floor, where there will be no production ol' 

 free nitrogen as long as the germination process is proceedim: 

 properly. The chief loss of nitrogenous material is mechanical, 

 in the drying and screening process. Similarly with the 

 mineral matter : after the first loss in the steep no otheis are 

 possible save those of a mechanical nature. It should be 

 noticed, however, how much of the nitrogen and mineral matter 

 passes into the malt dust ; the young shoots of the barley plant 

 are comparatively far richer in nitrogen and mineral matter 

 than the whole grain. The other changes, which take place 

 (Imping malting and are not shown in this table, would be thi' 

 incipient conversion of some of the starch into malt sugar (it is 

 well known that malt possesses a comparatively sweet taste) and 

 the migration of a large portion of the all)uminoids of the grain 

 into soluble nitrogenous compounds, chiefly anii<les and amino 

 acids, the nutritive value of which is certainly less than that 

 of the allumiinoids from which they were derived. The malt 

 also contains large amounts of diastase, the ferment which 

 converts starch into sugar during "mashinir." the next brewim: 

 process. 



The figures thus ol)tained foi- the changes during the 

 malting process agree with those generally accM'pted by 

 maltsters to-day, who expect to lose 10-11 per cent, of material 

 (dry weight), distributed as follows: — 



Loss in steep ... 1 P'"'' '•'''^^• 



Loss by respiration 4.) 



Malt dust . . . * 



Waste . . . . I •• 



The waste has been (Umini.shed bv the cmph.yni.-nt of tiled 



