The following components (A), (B) and (C):(A) n 0.00001 to 0.002 mass%, and(B) chloride ion, and(C) sweetener in terms of sucrose sweetness conversion concentration 1 to 9 mass%, And the mass ratio [(B) / (A)] of the component (A) and the component (B) is 1 to 1,000 and the pH is 2 to 5.4.次の成分(A)、(B)及び(C);(A)ルチン 0.00001~0.002質量%、及び(B)塩化物イオン、及び(C)甘味料 ショ糖甘味換算濃度で1~9質量%を含有し、成分(A)と成分(B)との質量比[(B)/(A)]が1~1000であり、かつpHが2~5.4である、酸性飲料。