When should leftovers be thrown away?
If you are asking when should leftovers be thrown away, the useful answer is a practical timing range plus the one source or warning sign that can change it. Food timing is about both quality and safety, so use practical ranges and discard anything that may be unsafe.
Short answer
Most refrigerated leftovers should be thrown away after 3 to 4 days, or sooner if they smell, look, or feel unsafe.
Detailed answer
Use the short answer as a starting point, then adjust for your location, condition, device, recipe, schedule, or official source. When accuracy matters, check the current primary source rather than an old screenshot or copied post.
Practical notes
Keep a reminder, compare conditions, and re-check the source when timing can change. For food, health-like, safety, and official schedule questions, choose caution over convenience.
What to watch out for
Do not rely on taste to judge food safety.
Related questions
This page is general information. Dates, platform rules, safety guidance, and official schedules can change.