1. Ukusebenza kakuhle kokugcina umbala, i-solvent kwi-varnish ayinakubangela ukuba i-inki ikhuphe igazi okanye iphele, kwaye kufuneka ibe nobunzima obaneleyo kunye nokuqina ukumelana nokuguqulwa kokulungiswa kwenkqubo elandelayo;
2. Ukuze kuphuculwe ukusebenza kakuhle kwemveliso kunye nokugcina amandla, ngokuqhelekileyo inkqubo yokugqibela yokushicilela idibene nenkqubo ye-varnish;
3. I-varnishes ye-coffee tin inamacandelo ahlukeneyo, imisebenzi eyahlukeneyo, kunye nokusetyenziswa okuhlukeneyo. Ngokuqhelekileyo, iintlobo ezahlukeneyo zeevanishi kufuneka zikhethwe ngokwemiqathango ethile;
4. Ukunyangwa kwe-varnish kunokwenza umphezulu we-milk powder tons bube buthuntu, kunye nokwakheka kwephepha kunye nefuthe elihle lokuhlobisa. Ijongwe kwii-engile ezahlukeneyo, inexabiso eliphezulu kakhulu lokuxabisa ubugcisa.