The danger zone and the 4 hour rule. Bacteria multiply fastest between
40°F and 140°F. Food must not
spend more than 4 hours in total in that band across
its whole life, counting thawing, prep, cooking, resting and serving added together, and
only 2 hours if the surrounding air is above
90°F. Thaw in the refrigerator, never on a counter.
Texture is not safety. A pork shoulder is safe at 145°F and is not
tender until about 203°F. Those extra hours render collagen. Never read that backwards.
Everything here is researched guidance rather than professional culinary instruction.
Verify with a calibrated instant-read thermometer in the thickest part,
away from bone and fat seams. Full detail in
food safety for smoking and on the
disclaimer page.