8 4 



Cider Anti-Ferments. 



easy instalments in the more important rural districts ; by 

 advancing money on grain ; and by the reduction of railway 

 rates on agricultural produce. 



[Foreign Office Report, Annual Series, No. 2255. Price 2^d.] 



The Use of Anti-Ferments in Cider Making. 



Some features of the investigations into the manufac- 

 ture of cider, which have been conducted for the past few 

 years at Butleigh by Mr. F. J. Lloyd, F.I.C., F.C.S., on behalf 

 of the Bath and West of England Society, have already been 

 noticed in this Journal,* and attention may now be directed to 

 the principal results of the experimental work undertaken in 

 the past year. 



The experiments of 1898 were largely concerned with the 

 subject of fermentation, and included a series of trial.'; of 

 various preservatives to determine their effect in checking 

 fermentation. The substances employed were two patent 

 preservatives, mustard, formic aldehyde, boracic acid, and 

 sodium salicylate. In three cases where the preservatives 

 were put into the casks, it was found that neither of the two 

 patented substances had checked the process of fermentation ; 

 mustard, on the other hand, had arrested fermentation, but the 

 cider to which it had been added possessed a strong, unplea- 

 sant flavour resembling garlic. Experiments to test the effects 

 of formic aldehyde, boracic acid, borax, and sodium salicylate, 

 and also of pasteurisation, . were made with filtered and 

 unfiltered juice in bottles. Formic aldehyde was found to 

 completely check fermentation, but it produced an abundant 

 precipitate and caused both the filtered and unfiltered cider to 

 become cloudy or milky. Boracic acid proved a failure with 

 unfiltered juice ; and borax injured the colour and flavour 

 of the filtered cider. Sodium salicylate checked fermentation 

 to some extent without producing any injurious effects 

 Pasteurisation of unfiltered juice at a temperature of 140 degs 



* Vol. v., No. 2, Sept., 1898. 



