Moi na aten kaw nna, shinggyim masha ni gaw shingra tara katsi ai shara hte shingra tara nbung hpe jai lang nna, shingra tara masa ni a majaw tsep kawp pat shingdang hkrum ai majaw, galaw shapraw ai lam n law wa ai. Hpaga lam rawt jat wa ai hte maren, ndai ladat ni hpe kalang ta, shinggyim masha ni galaw ai hku hkang lu ai nbung n-gun hte jak hte nbung hpe n-gun shayawm kau ai lam ni hku nna galai shai wa sai.
Ya aten na dryer ni gaw shawng nnan hta aten kadun, n galai shai ai-bed dryer ni hpe lang ai. Tsaban-19 lapran hta, hka htung hka ja ai jak ni hpe jai lang ai gaw, aten kadun laman galaw ai kaw nna matut manoi galaw ai de galai shai wa ai hpe madi madun ai. Rotary drum dryers ni gaw, n-gun n rawng ai arung arai ni hpe atsawm sha shadut ya nna, hkyet mat ai atsam hte n-gun hpe grau kaja hkra galaw ya ai. Nkau hpaga lam ni gaw, shanhte a ra kadawn ai lam ni hpe hkan nna, matut manoi bungli galaw ai hka ja jak ni hpe galaw shapraw ma ai, ga shadawn, hpun palawng hte laika pa galaw ai bungli ni hta drum hka ja jak ni hpe galaw shapraw ma ai.
Tsaban 20 a shawng daw de, hkaulan mam galaw shapraw ai hta, hka lim ai jak ni hpe jai lang hpang wa ai majaw, hka lim ai arung arai ni hpe kaba -hkum tsup hkra galaw lu na matu, n-gun ja ai arung arai langai mi rai nga ai. 1940 ning kaw nna, hka lim ai hpaji masa rawt jat wa ai hte maren, hka lim ai yupku hte nbung hka lim ai jak ni pru wa ai. Freeze-sublimation, radiation, hte dielectric dryers ni gaw ra kadawn ai lam ni hpe hkan sa lu na matu ladat nnan ni hpe jaw ya ai. Far-infrared hte Microwave hka ja ai jak ni hpe 1960 ning kaw nna galaw hpang wa ai.
