Isizathu sokubonakala kweendawo ezinokugqithisa kwiingubo kunokunceda nayiphi na into yentsimbi: i-rivet, ipowuni ekhohliweyo, umnandi, isikhonkwane. I-stain stains hayihlamba rhoqo ngexesha lokuhlamba ngokuqhelekileyo. Sinikela iindlela zokukrazula ngokugqithiseleyo ukugquma nokususa inqatha kwiingubo:
- Ukucoca ngumbane kwenziwa nge-lemon ne-hydrogen peroxide. I-Napkin kufuneka ixutywe ngejisi lemon bese isula izicubu ezinobuthi. Ukusuka kwibala elivela kwi-lemon kunokwenzeka ukuba ulahlekelwe nge-peroxide. Emva koko, le nto kufuneka ihlanjwe ngamanzi;
- Ukugcina i-rust kwiimpahla kunokususwa ngoncedo lwe-acetic acid. I-asidi kufuneka ixutywe ngamanzi (1 inkomityi yamanzi 2 iipuniwe zeviniga), ifudumale kwaye ifake into engcolileyo imizuzu emi-5. Emva koko supha umkhiqizo kumanzi abandayo.