Poultry, fish and ground meat that’s been defrosted in the fridge can be kept for an additional 1 to 2 days in the refrigerator before cooking. Beef, pork, lamb or veal (roasts, steaks or chops) will keep refrigerated for another 3 to 5 days after thawing.
http://stilltasty.com/articles/view/9
It usually takes an entire day to thaw even a small amount of frozen food, such as a pound of ground meat or boneless chicken breasts. For large items, like a whole turkey or ham, it’ll take about 24 hours of defrosting time for every 5 pounds of food.
http://stilltasty.com/articles/view/9
While properly cooking and then eating food that had stayed frozen at 0°F for years won't necessarily get you sick, you probably won't like how it tastes. So the USDA recommends tossing uncooked roasts, steaks and chops after a year in the freezer, and uncooked ground meat after just 4 months.
http://www.womansday.com/food-recipes/food-drinks/a51056/how-long-can-meat-stay-safely-frozen/
These short but safe time limits for home-refrigerated foods will keep them from spoiling or becoming dangerous to eat. The guidelines for freezer storage are for quality only. Frozen foods remain safe indefinitely. For storage times for eggs and foods made with eggs, see Egg Storage Chart. Category. Food. Refrigerator.
https://www.foodsafety.gov/keep/charts/storagetimes.html
Discover how important that date stamp really is. They're meant to protect us and ensure the highest quality and safety of our food, but why are expiration dates so confusing? The cryptic and sometimes smudged date on the label of a food product can leave us wondering how safe it is to eat. And, in a less than perfect economy, where many people are trying to stretch their grocery budget, is it ever OK to keep food beyond its sell-by date? Find the answer to this question and more.
http://www.womansday.com/food-recipes/food-drinks/g2095/do-food-expiration-dates-matter/
Using this thawing method, small packages of frozen meat or poultry (about a pound) can defrost in one hour or less. For larger items, you should estimate about 30 minutes of defrosting time per pound of food. Once the food is thawed completely, you’ll need to cook it immediately.
http://stilltasty.com/articles/view/9
Adapted from Keeping Food Safe During an Emergency (USDA). Thawed or partially thawed food in the freezer may be safely refrozen if it still contains ice crystals or is at 40 °F or below. Partial thawing and refreezing may affect the quality of some food, but the food will be safe to eat.
https://www.foodsafety.gov/keep/charts/frozen_food.html
But how long can meat stay frozen while still being safe to eat? According to the U.S. Department of Agriculture, any food stored at exactly 0°F is safe to eat indefinitely. The USDA says that keeping food frozen prevents the growth of microorganisms that cause both food spoilage and foodborne illness..
http://www.womansday.com/food-recipes/food-drinks/a51056/how-long-can-meat-stay-safely-frozen/
If you keep an appliance thermometer in your freezer, it’s easy to tell whether food is safe. When the power comes back on, check the thermometer. If it reads 40 °F or below, the food is safe and can be refrozen.
https://www.foodsafety.gov/keep/charts/frozen_food.html
All of these times assume that you froze your food well-wrapped or in freezer containers or bags. Note that these times only refer to how long your frozen food will still be of excellent quality when you finally get around to eating it: It's not a safety issue. Frozen food will safely keep in the freezer indefinitely.
https://www.thespruce.com/storing-food-in-the-freezer-1327662
how long frozen meat
The frozen meat lasts for 4 months.