obsolete caffeoylglucose 3-O-methyltransferase activity (obsolete GO:0102631)
OBSOLETE. Catalysis of the reaction: 1-O-caffeoyl-beta-D-glucose + S-adenosyl-L-methionine = 1-O-feruloyl-beta-D-glucose + S-adenosyl-L-homocysteine + H+.