Lapho umbhede wokushisa werabha ye-silicone uxhunyiwe, ukuhlanganiswa kwezintambo zokushisa zikagesi kungakhuphula izinga lokushisa libe yinani elilinganiselwe ngesikhathi esifushane kakhulu, futhi ngemva kokufakwa kwe-insulation, kuba nomthelela osebenza kakhulu wokulawula izinga lokushisa. Nokho, kuyo yonke inqubo yokushisa, i-calorie...
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