The vessels from which the people of Paradise will eat and drink will be of gold and silver. Allah (SWT) says:
“Trays of gold and cups will be passed round them..” [43:71] i.e. cups of gold.
And Allah (SWT) says, “And amongst them, will be passed round vessels of silver and cups of crystal, crystal-clear, made of silver. They will determine the measure thereof according to their wishes.” [76:15] i.e it will combine the purity of crystal with the whiteness of silver.
al-Bukhaari and Muslim reported from Abu Musaa al-Ash’ari that the Messenger of Allah (saw) said, “The believer in Paradise will have a tent made of a hollowed-out pearl.. and two gardens of silver, their vessels and everything in them, and two gardens of gold, their vessels and everything in them.” [Mishkaat al-Masaabeeh, 3/86]
Among the vessels from which they will drink will be cups and jugs and glasses:
“They will be served by immortal boys, with cups, and jugs and a glass from the flowing wine.” [56:17-18]
The “cup” [koob] is something that has no handle or spout, the “jug” [ibreeq] has a handle and a spout and the “glass” [kaa’s] is a cup that is filled with drink.