Kutumizidwa kuchokera ku Mexico — yitanitsani, palibe malipiro pa intaneti panopa.
Lao Cha Tou ndi chotulukapo cha pambali cha kuunjika konyowa kwa shu pu-erh, pomwe masamba ochuluka a pectin amamatira palimodzi kukhala timviringe tolimba. Poyamba ankaonedwa ngati chilema, masiku ano amayamikiridwa chifukwa cha kukoma kwake kozama kotsekemera, kupirira kwake kwapadera, ndi mphamvu yake yotenthetsa. Kusowekapezeka (zokolola 0.8-1.5%) ndi kufunika kosungidwa kwa zaka zosachepera 3 kumawapanga kukhala chinthu chosonkhanitsidwa.
M'fungo mwake mumalamulira ma toni a matabwa ndi mtedza ndi kutsekemera kwa datelo ndi caramel, kukoma kwake ndi kosalala ngati mafuta, kophimba m'kamwa, ndikumaliza ndi kutsekemera kwautali.