tray of used crockery on table. diners at coffee shops, food courts, hawker centres are expected to clear their tables, dirty

bowls cafeteria canteen centre clean clear coffeeshop collect courts crockery diner dining dirty dishes distancing eating finished food foodcourt hawker hygiene hygienic litter meal nea outbreak restaurant return self selfservice service shelf shops singapore social tables tissue tray trayreturn trolley uncleared used utensil utensils waste