US 12,066,421 B2
Method for determining reference value of wine for feasibility of filling aluminum can, method for checking feasibility of filling aluminum can with wine, and method for producing aluminum-canned wine
Akira Nagashima, Tokyo (JP); Koichiro Nakamura, Sagamihara (JP); and Sin Ou, Tokyo (JP)
Assigned to Daiwa Can Company, Tokyo (JP)
Filed by DAIWA CAN COMPANY, Tokyo (JP)
Filed on Sep. 20, 2023, as Appl. No. 18/470,891.
Application 18/470,891 is a continuation of application No. PCT/JP2021/013901, filed on Mar. 31, 2021.
Prior Publication US 2024/0011963 A1, Jan. 11, 2024
Int. Cl. G01N 33/14 (2006.01); B32B 7/12 (2006.01); B32B 15/09 (2006.01); B32B 15/20 (2006.01); B32B 27/36 (2006.01); B65D 23/02 (2006.01); B67C 3/02 (2006.01)
CPC G01N 33/146 (2013.01) [B32B 7/12 (2013.01); B32B 15/09 (2013.01); B32B 15/20 (2013.01); B32B 27/36 (2013.01); B65D 23/02 (2013.01); B67C 3/02 (2013.01); B32B 2255/06 (2013.01); B32B 2255/26 (2013.01); B32B 2255/28 (2013.01); B32B 2270/00 (2013.01); B32B 2439/66 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for determining a reference value of a wine for feasibility of filling an aluminum can, the method comprising:
acquiring a pH, an alcohol concentration, and a free sulfite concentration for multiple kinds of wines;
calculating a molecular SO2 concentration of each of the multiple kinds of wines from acquired values of the pH, the alcohol concentration, and the free sulfite concentration;
enclosing the multiple kinds of wines into aluminum cans of an identical type, respectively, thereby obtaining multiple kinds of canned wines;
putting the multiple kinds of canned wines in storage and evaluating quality of the canned wines after the storage; and
determining an upper limit value of the molecular SO2 concentration based on an evaluation result obtained from the evaluating.