The life in Jannah is different than the life on earth, as I mentioned earlier. There every thing is permissible. However, the dirty things on earth does not exist there, so the wine in Jannah is not the same wine on earth, as it is mentioned in Quran
لَا فِيهَا غَوْلٌ وَلَا هُمْ عَنْهَا يُنْزَفُونَ
Sura 37, verse 47