Meats are kept better in the freezer. Meats can be kept in the refrigerator for 3 to 4 days if raw and 1 to 2 days longer if cooked. Always place cooked meats in an airtight container.
Steak should be good for 3 to 4 days, refrigerated in an airtight container.
This is the sell by date for stores. Milk is usually good refrigerated for a week post this date
Yogurt almost always has a sell-by date rather than an expiration date. If refrigerated, opened yogurt is good to eat for 1 week after the sell-by date. Unopened, it is good for 2 to 3 weeks beyond the sell-by date.
If it's in plastic packaging, it's usually good for quite some time. Especially if you froze it. When I buy the ham steak in plastic packaging at the grocery store, it's usually fine refrigerated for a few weeks...at least that's what the package says.
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Ground round is good if refrigerated for up to a week after the purchase by date. If you freeze it right away, it may last a couple months.
All penicillin will go bad after a period of time, but it is actually better to keep liquid penicillin refrigerated. It is a good idea to check the expiration date on your penicillin, and dispose of it when it expires. Penicillin that has gone bad will not help you, and you should be careful with medications that are past their date.
Unless you want to SELL it ... then, yes, it is still good to cook and eat ... as long as it has been kept properly refrigerated.
It's no good. Meat needs to be kept refrigerated - as the temp of the meat rises on the counter, the bacteria multiply. The general rule is if left out over two hours, throw it out... Sorry!
Worcestershire sauce is a type of steak sauce condiment. If it has not been open it does not need to be refrigerated. However, once it is opened, it is a good idea to place the bottle in the refrigerator, to keep it from getting molded and to stay fresh.
About four to five days, properly refrigerated.
Upto about 5 days afterwards it will still work but not as effectively. Beyond that, it may actually begin to grow mold.