Not sure my meat spent long enough on high in the crock pot?
Check the crock pot manual.

Usually, the "keep warm" setting will keep a temperature of between 145°F to 165°F (62°C to 74°C). This is the recommended food safety temperature to keep hot food in that is not immediately served (which is likely why the "keep warm" temperature is in this particular range in the first place). 145°F is also the safe internal temperature for beef, pork, lamb and veal.