The collection of data milling damage in the two provinces for more than three mills each province (Kien Giang and Tien Giang) were made in 2007-2008. Undertaking the recovery of rice will not only depend on the initial quality of rice (existing cracks or major cereals), but also on the effectiveness of the milling operation. So, in this work, the fact milling loss of data is collected in two provinces of Tien Giang and Kien Giang. There exist three system of rice plants in both provinces: | Australian Government AusAID Ministry of Agriculture Rural Development Project Completion Report MS14 PROJECT COMPLETION REPORT 026 05VIE Investigation of rice kernel cracking and its control in the field and during post-harvest processes in the Mekong Delta of Vietnam APPENDIX 3A DATA COLLECTION OF MILLING LOSSES April 2010 120 APPENDIX 3A. DATA COLLECTION OF MILLING LOSSES The data collection of milling losses in two provinces from more than three milling plants in each province Kien Giang and Tien Giang was undertaken in 2007-2008. This work assumed that the head rice recovery will not only depend on the initial rice quality existing cracks or weaker grain but also on the efficiency of the milling operation. Therefore in this work actual milling loss data were collected in two provinces Tien Giang and Kien Giang. There exist three systems of rice mills in both provinces The traditional white rice milling system A complete rice milling plant without polishing accounts for 91 . The brown rice milling system accounts for 3 . The final rice whitening polishing plant account for around 6 of total rice mills . In this work the data collection was done on three milling types Small- 1 ton hr Medium- 1-4 ton h Large- 4 ton h The data were also collected in three types of hulling mills Hulling by stone disc huller Hulling by rubber roll huller Hulling by both stone disc huller and rubber roll huller The data were collected by two methods Surveying with the millers all three size rice mills - in both provinces Real data collection from the mills four small and two medium size rice mills - in only Kien Giang province the same data set will be collected in other province this season . The results are presented in Tables 2 and 3. The real data and data collected by survey were quite coherent. Both data suggested that the head rice recovery in small scale mills was the lowest and was as low as 33 . Large rice mills had the highest of 55 head rice recovery. In the actual ideal
