4 BULLETIN 666, U. 8S. DEPARTMENT OF AGRICULTURE. 
TABLE 1.—Description of samples—Continued. 
No. | Blend. Kind and percentage ofalkali. Moisture.| Fat. 
Per cent. | Per cent. 
DOT aha Pee wei eee eee ae Untreatedis sac 5 se eee eee 5. 00 17. 96 
SOE Se =. cee er nae Seen ein ote ere meee ate | teroters dO} 3 See 8 AER ee eee ee 3. 30 21. 59 
SiuOAM Cas BOs eee a ae ee ee eee 2 per cent sodium carbonate........... 3.25 20. 63 
Se Yeeeah nets see Se ee eee Untreateds 22-2 5 ae eee a eee 4.56 12. 37 
SB aI SATO AS BOR ee een oes eee 3 per cent sodium bicarbonate......... 3.50 16. 54 
34) Lmported' cocoa, alkali treatedie= eli 22 eee ree ee eee ee eee 4. 64 28. 37 
319): | aes GOs as ee Sains oe cas EE a a Se eee ee 4.60 27.4 
DS Oa eee eee end Wee Oa One es eee Untreated: 2 ees ee eee 33 UD 24. 44 
Si2\pim ported cocoa, alkali treatedias-4¢ -|f-ceeess=ooe aac e eee eee eee eee bale 25. 10 
SSaseeee CLO pe ee OS AR ere mee Mins Mon arian Saar Or Sach ood osUndoosoneSe 3. 96 24. 42 
130 Bee neers. eas eine cs Senora ae Untreated 232 sce aeee ae epee 2. 81 22. 50 
RA (i | eet sae Ser 3 Eo UE Came ro arene caer (Ler Ratner pea couadomeee 4. 80 25. 20 
LW. 8 bel ee Bod So oes eR On CaN eC Oar Sen ea Bese dOfe Moni eee eee 4.18 23. 42 
VAD Arriba. erimiGd ad sae sess ee aera ee age GOSS Se cpeet 2 OR  ee eare Ree ieee 2.05 23552 
143 | Arriba, Bahia, Accra, Sanchez-...--.|----- Ges i Soo es Sete ve ep ees eee 2. 00 23. 22 
AGA seen ae cia ee ers eee eames woe eee GOL 2 Da ee ee eee 3. 61 15. 52 
YAS) 3 Mee a SR a Sy te oe Ae S| LR ere GOt a PRS See eee eee 3.90 26. O1 
AGHIESAINC ASA diee Sree ens ee ee ae 1 per cent ofa mixture of magnesium 3. 66 18.77 
carbonate and potassium carbonate. 
AT te a EE sce ee NR es EE ee ‘Untreatedst Ss) =". ae eee = reese eeeee 4. 62 18. 60 
ASS emia eae eens Sar eet 8 Ce eS eee GOs sae e SR ah eth en ene oe 4.73 21. 83 
AQ Ete Rie eee see Pow Se REN (5k ERR ih. Be 1 per cent of a mixture of magnesium 2.75 28. 40 
carbonate and potassium carbonate. 
AO) | besestteyes Mee ee Ae ae eine a Re 1.75 per cent magnesium carbonate.... 3. 00 30. 00 
ELS | eee een ae ee Seca ee ena aa eee Untreatediaies sists. 22 eee ee 4.78 25. 94 
EZ | earners & Siete es REM e es Syke ey eNO haa 2 per cent of a mixture of magnesium 3. 70 19. 83 
carbonate and potassium carbonate. 
SP aes eee as Ree ee ie ae an a oe 1.5 per cent of a Mixture of Magnesium 6.12 28. 63 
and potassium carbonates. 
EA ies ae nn Sema An ee as ee Untreatedsess 25 ee eee 5.31 21. 98 
1 ES) «| a on See eR Nn Cian Sa ak Ae ee aE Te (6 Koa aru ty oS ENS Mau UR SS 2. 83 21.23 
1 Nal bea eS Oe aS pce asah Ss Oe eee eee oe Goze. Ste 5X eee eee ee H 2.46 24. 48 
5/7 || ene ned Way ears Bee coy 2k A ae do=i.) le. she. Siege Poeearrs(ns 22. 68 
A See ee a eee eee ma ee hk FS BU eee COE. t eae: See eee nn } 5. 21 22. 68 
1 Manufactured by concerns which make no “ Dutch process” cocoa. 
As the percentage of moisture in the alkali-treated cocoas varies 
from 1.80 to 6.12 per cent, and in the untreated cocoas from 2 to-| 
5.31 per cent, it is evident that practically all the water which is 
added in the treatment is driven off. 
The percentage of fat in the alkali-treated cocoas varies from 
16.54 to 30 per cent; that in the untreated cocoas varies from 12.37 
to 26.01 per cent. Judging from these results, it is possible to 
remove more fat from the untreated cocoa than from a treated one, | 
inasmuch as there are three samples of the untreated cocoas which | 
contain less fat than the minimum of the treated cocoas. In cases | 
where the treated and untreated cocoas are made from the same | 
blend of beans and in the same way, almost invariably the alkali- | 
treated cocoa contains a higher percentage of fat. 
ANALYSES OF UNTREATED AND TREATED COCOAS. 
Determinations of total ash, water-soluble and water-insoluble 
ash, alkalinity of the soluble ash, alkalinity of the insoluble ash, and 
protein were made on each sample. The Gunning method was used 
for the determination of nitrogen. The other determinations were 
made in the ordinary way, using methyl orange as an indicator in 
the titration of the alkalinities. . The results obtained are given in 
Table 2, which contains the analyses of the untreated cocoas, Table 3, 
