Discard the marinade and onions that touched raw pork; do not spoon them over the cooked skewers. Put leftovers in shallow containers and refrigerate within 2 hours, or within 1 hour if the surrounding temperature is above 32°C (90°F). Store at 4°C (40°F) or below for 3–4 days. Reheat to a centre temperature of 74°C (165°F).