A well-known story tells how Ishida Mitsunari entered the service of Toyotomi Hideyoshi. Hideyoshi stopped at a temple and asked for tea. A temple boy first served a cup almost full of lukewarm tea. Hideyoshi asked for more. The boy served less tea, a little hotter. The third time, he served a small amount of quite hot tea in a small cup. Hideyoshi was impressed by the boy’s attentiveness and asked the abbot for him.
The story is known as sanken no cha, the three offerings of tea. It first appears in Bushō kanjōki, published in 1716, and was later retold in Ehon Taikōki and Meishō genkōroku. It is most likely a later invention.