“In this verse, the word soma means “nectar.” Soma is a kind of beverage made in the heavenly planets from the moon to the kingdoms of the demigods in the various higher planetary systems. By drinking this soma beverage the demigods become more powerful mentally and increase their sensual power and bodily strength. The words hiranmayena patrena indicate that this soma beverage is not an ordinary intoxicating liquor. The demigods would not touch any kind of liquor. Nor is soma a kind of drug. It is a different kind of beverage, available in the heavenly planets. Soma is far different from the liquors made for demoniac people, as explained in the next verse.
The demons also have their own types of beverages in the form of liquors and beers, just as the demigods use soma-rasa for their drinking purposes. The demons born of Diti take great pleasure in drinking wine and beer. Even today people of demoniac nature are very much addicted to liquor and beer. The name of Prahlada Maharaja is very significant in this connection. Because Prahlada Maharaja was born in a family of demons, as the son of Hiranyakasipu, by his mercy the demons were and still are able to have their drinks in the form of wine and beer. The word ayah (iron) is very significant. Whereas the nectarean soma was put in a golden pot, the liquors and beers were put in an iron pot. Because the liquor and beer are inferior, they are placed in an iron pot, and because soma-rasa is superior, it is placed in a golden pot.
Source: A.C. Bhaktivedanta Swami Prabhupada (2014 edition), “”Srimad Bhagavatam””, Fourth Canto, Chapter 18 – Text 15 & 16″