Mtedzawu suwerengedwa pakati pa mtedza chifukwa mu botanical si mtedza koma nyemba. Ngakhale kuti mtedza weniweni ukutseketsa zipatso zomwe pericarp imakhala ndi lignified ndipo imatseketsa mbewu imodzi, mtedza umagwirizana ndi nyemba monga nandolo kapena nyemba. Maluwawo akathiridwa ndi feteleza, mapesi a mtedzawo amapindika pansi, kukakamiza chipatsocho pamwamba pake kulowa pansi. Mtedza umakhala pamenepo mpaka utapsa.
Mtedza wambiri wodyedwa umapangidwa ku United States. Kuchokera ku mayiko akuluakulu opanga China ndi India, gawo limodzi lokha limafika ku Ulaya kuti lidye. Kuchuluka kwakukulu kumagwiritsidwa ntchito popanga mafuta a mtedza.
Kukoma kwa mtedza waiwisi kumafanana ndi nyemba. Wopereka mapuloteniwa, omwe ndi ofunikira m'zikhalidwe zambiri, amangotaya zinthu zowawa pambuyo powotcha ndikusunga fungo lake.
Mtedza m'lingaliro la botanical amaphatikiza mtedza, hazelnuts, mtedza wa macadamia, komanso ma beechnuts ndi ma chestnut okoma. Monga mtedza, zipatso zina zonga mtedza wokhala ndi chipolopolo cholimba sizimawerengedwa ngati mtedza. Mwachitsanzo coconuts, amondi, ndi pistachios, iliyonse yomwe ili pakatikati pamwala wa zipatso.