Khi quá khó rửa, hãy ngâm chúng với một chút nước rửa chén hoặc chất tẩy rửa chuyên dụng, khoảng 1/4 muỗng xà phòng là đủ. Đợi khoảng nửa giờ, rửa sạch và lau khô.
When it's too hard to wash, make them with a bit of water immersion washing or specialized cleaners, about 1/4 tablespoon of SOAP is enough. Wait about a half hour, rinse and wipe dry.
When too difficult to wash, soak them in a little water or dishwashing detergent dedicated, about 1/4 tablespoon of soap is enough. Wait half an hour, rinse and wipe dry.