This is done either in the field for about 12 days as long as there is no rain and the weather is warm and dry or in rooms with artificial heating at a temperature of about 26°C and relative humidity of 80%.
Hezwi zwi nga itwa tsimuni kwa maḓuvha a 12 tenda havha hu sina mvula hu khou dudela kana kha lufhera lune lwa vha na mufhiso une wa vha kha 26°C na humidity ya 80%.