Decanting a wine means to pour it into medium difficulty container, before pouring it into your glass.
Some grape concentrates found in kits tend to concentrated than others; un-concentrated juice now is available in kit variation. https://harrington-reyes-3.technetbloggers.de/ruou-phai-nu-nhi-hong-va-nhung-tung-mat-dang-sau-huong-thom-vi