MAPLE SUGAR. 



35 



tests have been made of the fresh sap in different bushes with ferric 

 chlorid, but in no case has a coloration due to tannin been noted. 

 Tannin is present in sap that has stood during a rainstorm, as well 

 as in dirty sap. . 



UNDETERMINED MATTER. 



As this is a difference figure, it is influenced by the accuracy of the 

 other determinations. The highest figure noted for the United States 

 samples was 5.84, and the minimum was 0, the average being 1.70. 

 This difference is almost entirely accounted for when ash, which is 

 weighed as a carbonate, is calculated to a malate, in which condition 

 it is supposed to occur naturally. 



CANADIAN MAPLE SUGARS. 



Comparison of Canadian sap sirups with those from the United 

 States showed that they were darker in color and gave lower ana- 

 lytical results. 1 The same comparison on maple sugars shows that 

 on an average the analytical figures for Canadian samples are slightly 

 higher than those for the United States. Table XXII gives the 

 average results. 



Table XXII. — Comparison of analytical results for Canadian and United States sugar. 



Determination. 



United 



States 



samples 



(283). 



Canadian 



samples 



(80). 



Determination. 



United 



States 



samples 



(283). 



Canadian 



samples 



(80). 



Sucrose per cent. . 



Invert sugar do 



91.89 



5.46 



1.70 



.95 



86.48 

 8.76 

 3.70 

 1.06 



Insoluble ash per cent . . 



Soluble ash do 



Winton lead number 



0.33 



.62 



2.68 



13.34 



.91 



0.45 



.61 



3.04 





Ross lead number 



2 3. 66 







1.03 



Total do 



100.00 



100.00 





1 Average of determinations on 282 samples. 



2 Average of determinations on 26 samples. Determination not made on rest of the 80 samples. 



The darker color of the Canadian samples was due to the process 

 of manufacture rather than to the environment or climate, for prod- 

 ucts as light colored as those manufactured in the United States are 

 made in Canada. Crudeness in the process leads to dark, strong- 

 flavored products, which are of no value for consumption in that 

 condition, but find a market in mixtures of maple and sugar sirups 

 or for giving flavor to a sirup. 



The Canadian samples may be grouped into three divisions, those 

 coming from Beauce and the surrounding townships, those from the 

 region below Montreal, centered around Sberbrook and Waterloo, 

 and those above Montreal in Joliette Township. Figure 1 shows the 

 relative location of these townships, as well as the average figures for 

 the important analytical determinations. 



i U. S. Dept. Agr., Bur. Chem. Bui. 134, pp. 75-76. 



