Bowl of hot water

A bowl of hot water can be created by using a normal bowl on a water source to turn it into a bowl of water and then heating this on a stove, a range, or a fire. When added to an empty tea cup, a cup of hot water is made. Players that have 89 Summoning or higher can also use a bowl of water on a Geyser titan in order to turn it into a bowl of hot water.

Trivia

 * A bowl of hot water was formerly used to make Guthix rest (including during the quest One Small Favour).