A:Answer Hi Hrsec1 - Thanks for viewing GE Model GDF510PGMBB! The 1 Hour cycle on this model is for light to medium soiled dishes and takes about 1 hour. It is safe for china and crystal with no options selected. China is normally safe to wash in your automatic dishwasher. However, antique, metal trimmed, hand painted china or over-the-glaze patterns are vulnerable to fading with high water temperature and detergent solutions, and therefore should not be washed in a dishwasher. If there is any question, check with the manufacturer of the chinaware, or test wash one piece daily for at least one month for comparison with the rest of the set. Be sure to load the china items securely to prevent movement during the wash cycle. This will help minimize chipping or breaking. Keep in touch at GEAppliances.com! Sue