1. Yenziwe ngezinto ezikrwada zepremium.
2. Ukusebenza kombala okugqibeleleyo, vala i-inki yokuzalisa i-original.
3. Ukuhambelana kwemidiya ebanzi.
4. Ukuchasana okugqwesileyo kumanzi, ukukhanya, ukukrazula kunye ne-oxidation.
5. Uzinzo oluhle nasemva kovavanyo lomkhenkce kunye novavanyo lokuguga ngokukhawuleza.