Decanting a wine means to pour it into an intermediate container, before pouring it into your glass.
Some grape concentrates found in kits tend to concentrated than others; un-concentrated juice is already available in kit version. https://objectstorage.Ap-Singapore-1.oraclecloud.com/p/6MQZEJcamkQRMz5rwxPSCRhYrPgxF97PEzcCAiQAZXew0X-U4TdhrlkuQ5Hyrg0T/n/axqjqojndoew/b/Ruou-tay/o/Ruou-Hennessy-VS:-Su-ket-hop-tuyet-voi-giua-truyen-thong-va-hien-dai.docx.html