One reliable record was the one found in "Record of the Tea Ceremony at Tennojiya," that recorded a chakai (tea party) held by Sotatsu TSUDA in October 5, 1564, and it is known that this was the first time a natsume was used as a tea utensil, much later than other wooden cha-ki (See the item for usucha-ki.)
確実な記録としては、『天王寺屋茶会記』の永禄7年（1564）8月20日の津田宗達の茶会で用いられたのが初例であり、他の木製の茶器（薄茶器参照）よりも随分と下っていることが判明している。