>>1740457Hard cheese can last 7 to 30 days, entirely depending on moisture content, soft cheeses a matter of days.
Eggs for 2+ weeks
Fresh meat, is about 24 hours or less. Yes, before someone goes REEEE, you can have meat last longer than this and be perfectly fine, but getting food poisoning while hiking is hell on earth, why risk it.
This all of course depends on your local ambient temps, hotter = shorter. In winter camping you can carry fresh meat for days and days, in summer in the south, good luck not getting a case of the trots after a day.
You carry food in plastic bags. You carry eggs in a plastic egg carton, you carry hard-boiled eggs in your pockets for that quick pro-level pocket egg snack.
Carry dried meats or cured sausages, hard cheeses (harder is better), tortillas or another unleavened bread, etc. Backpacking food is about calorie to weight density, but also how packable the food is and how palatable it is at outdoor temps.