Butter will last for a few weeks after it has been opened. \nButter can last up to a month if it is stored properly.
Does Opened Butter Go Bad?

Yes, opened butter can go bad. Butter is a dairy product and contains milk, so it can spoil.
You can tell if butter has gone bad if it has a sour smell or taste, or if it has mold on it. If butter has gone bad, it is not safe to eat.
How Long Does Butter Last In Refrigerator?
Butter can last up to a month in the refrigerator.
Butter can last up to a month in the refrigerator.
How Do You Know If Butter Has Gone Bad?

If the butter has changed color or texture, or has developed an off odor, it has gone bad and should be discarded.
If the butter is stored in the refrigerator, and has developed a thick white film on the top, this is called “bloom” and is normal. The butter is still safe to use.
Can Refrigerated Butter Go Bad?
Yes, it can.
Butter is a dairy product made from the fat and protein in milk. Most butter is made from cow’s milk, but butter can also be made from the milk of other animals, such as goats, sheep, and yaks.
Butter is highly perishable and will go bad quickly if it is not properly stored. If butter is stored in the refrigerator, it will last for about two weeks. If butter is stored in the freezer, it will last for about six months.
What Happens If I Eat Old Butter?

If you eat old butter, you may experience nausea, vomiting, and diarrhea.
Old butter can contain bacteria that can cause food poisoning.
Can You Use Butter 2 Months Out Of Date?
Yes, you can use butter 2 months out of date.
However, it is not recommended to use butter that is more than 2 months out of date.
How Do You Store Butter After Opening?
You can store butter in the fridge for up to two months after opening.
You can also freeze butter for up to six months.
What Does Rancid Butter Taste Like?
Rancid butter tastes sour, salty, and unpleasant.
The taste of rancid butter is often described as sour, salty, or unpleasant. Rancid butter may also have a strong, unpleasant odor.
Does Butter Spoil?
Yes, butter can spoil.
If butter is stored in the fridge, it can last for up to a month. If it is stored in the freezer, it can last for up to six months.
Can I Use Butter Past Its Best By Date?
Yes, you can use butter past its best by date, but it may not taste as good.
The best by date is not an expiration date, but the date by which the butter should be used for best quality.
What Does Bad Butter Smell Like?
Bad butter smells sour, rancid, or otherwise unpleasant.
If your butter smells bad, it’s probably time to throw it out.
What Does Rancid Butter Look Like?
Rancid butter looks like yellowish-white butter that has a sour smell.
The color of the butter may vary from yellow to white, and the texture may be either hard or soft. The butter may also have a greenish tint and a sour smell.
What Does Bad Butter Smell Like?
Bad butter smells sour, rancid, or otherwise unpleasant.
When butter goes bad, it develops a sour smell, a sign that the milk or cream has gone bad. The color of the butter may also change from its original white or yellow color.
Can You Eat Butter Past Its Best Before Date?
Yes, you can eat butter past its best before date.
The best before date is not an expiration date. It is the date up to which the manufacturer can guarantee the full flavor and quality of the product.
How Do You Store Butter After Opening?
You can store butter in the fridge for up to two months after opening.
You can also freeze butter for up to six months.
Why Does Butter Last So Long?
Butter is a dairy product made from the fat and protein in milk. It is a solid at room temperature but becomes a liquid when heated. Butter has a long shelf life because it is a dairy product and contains high levels of fat.
Butter is a dairy product and contains high levels of fat. Butter is also a solid at room temperature but becomes a liquid when heated. These properties make butter an ideal food for long-term storage.
Does Unsalted Butter Need To Be Refrigerated?
Yes, unsalted butter needs to be refrigerated.
Unsalted butter is a dairy product made from the butterfat of milk. It is usually made from cow’s milk, but can also be made from goat’s, sheep’s, or buffalo’s milk. Butter is a water-in-oil emulsion resulting from an inversion of the cream, where the milk proteins are the emulsifiers.