Schadenfreude Refreshes Parts

I first came by the word schadenfreude recently in SavySeph’s Tip 17. It means to rejoice in the misfortune of others as stated in the website. Now I am puzzled as I was read that “schadenfreude refreshes the parts other beers cannot reach”. I checked the online dictionaries and Wikipedia and these sources confirm that SavySeph used the word correctly. If anyone knows how schadenfreude refreshes the parts other beers cannot reach, please leave a comment. Thanks.