The definition of glean is  to obtain information or to collect grain left behind after harvesting. An example of glean is when you ask questions to try to find out information. An example of glean is when you collect the grain remaining in the field after the reapers have finished harvesting the field.
FOOD STORAGE â HOW LONG CAN YOU KEEP... PORK ROAST, ALL CUTS (INCLUDING LOIN, TENDERLOIN, BOSTON BUTT, SIRLOIN, BLADE, CROWN, PICNIC, SHOULDER) â COOKED. Refrigerate within two hours of cooking.
Since it is a custard base, it would be best not to allow it to sit out for more than an hour - total. From the FDA website and a Department of Health source, cooked foods can be left out for up to 4 hours after they are removed from the oven. This is a regulation for restaurants.