Can you keep butter out of the fridge?

    Butter is a popular spread and baking ingredient.

    Yet when you store it in the refrigerator, it becomes hard, so you need to soften or melt it before use.

    For this reason, some people store butter on the counter rather than in the fridge.

    But does butter go bad if you leave it out? This article explores whether it actually needs to be refrigerated or not.

    It Has a High Fat Content

    Butter is a dairy product , meaning it is made from the milk of mammals — usually cows.

    It is made by churning milk or cream until it separates into buttermilk, which is mostly liquid, and butterfat, which is mostly solid.

    Butter is unique among dairy products because of its very high fat content. While whole milk contains just over 3% fat and heavy cream contains nearly 40% fat, butter contains more than 80% fat. The remaining 20% is mostly water ( 1 , 2 , 3 , 4 ).

    Unlike other dairy products, it doesn’t contain many carbs or much protein ( 3 , 5 ).

    This high fat content is what makes butter so thick and spreadable. However, when it is kept in the fridge, it becomes hard and difficult to spread.

    This leads some people to store butter at room temperature, which keeps it at the ideal consistency for cooking and spreading.


    Butter has a high fat content of over 80%, which makes it thick and spreadable. The rest is mostly water.

    It Doesn’t Spoil as Quickly as Other Dairy

    Because butter has a high fat content and relatively low water content, it is less likely to support bacterial growth than other types of dairy products.

    This is especially true if the butter is salted, which lowers the water content further and makes the environment inhospitable to bacteria.

    Salted Varieties Resist Bacterial Growth

    According to the United States Food and Drug Administration (FDA), while most types of bacteria would be able to survive on unsalted butter, there is only one type of bacteria that can survive the conditions of salted butter ( 4 ).

    In one study to determine the shelf life of butter, scientists added several types of bacteria to the butter to see how well they would grow.

    After three weeks, the bacterial content was significantly lower than the amount added, demonstrating that butter doesn’t support most bacterial growth ( 6 , 7 ).

    Therefore, regular, salted butter has a low risk of bacterial contamination, even when kept at room temperature.

    In fact, butter is actually produced with the expectation that consumers will not keep it in the fridge ( 4 ).

    However, unsalted and whipped kinds are a different story.

    But Don’t Let Your Butter Go Rancid

    Although butter has a low risk of bacterial growth, its high fat content means it is vulnerable to going rancid. When a fat spoils, you can tell it should no longer be eaten because it will smell and may be discolored.

    Fats go rancid, or spoil, through a process called oxidation, which alters their molecular structure and produces potentially harmful compounds. It also results in off flavors in any foods made with the rancid fats ( 8 , 9 ).

    Heat, light and exposure to oxygen can all speed up this process ( 8 , 9 ).

    Yet it has been demonstrated that it may take anywhere between several weeks to over a year for oxidation to negatively affect butter, depending on how it is produced and stored ( 6 ).


    Butter’s composition discourages bacterial growth, even at room temperature. But exposure to light, heat and oxygen can cause rancidity.

    It Stays Fresh Longer in the Fridge

    Unsalted, whipped or raw, unpasteurized butter is best kept in the fridge to minimize the chances of bacterial growth ( 4 ).

    Salted butter does not need to be stored in the fridge since the risk of bacterial growth is so low.

    Studies have shown that butter has a shelf life of many months, even when stored at room temperature ( 6 , 10 ).

    However, it will stay fresh longer if it is kept in the refrigerator. Refrigeration slows down the process of oxidation, which will eventually cause butter to go rancid.

    For this reason, it is generally recommended not to leave butter out for more than a couple of days or weeks in order to keep it at its freshest.

    Additionally, if the temperature of your house is warmer than 70–77°F (21–25°C), it is a good idea to keep it in the refrigerator.

    If you prefer to keep your butter on the counter, but don’t expect to use the whole package soon, keep a small amount on the counter and the rest in the fridge.

    You can store larger amounts of butter in your freezer, which will keep it fresh for up to one year ( 10 , 11 ).


    Salted butter can be left out for several days to a couple of weeks before it goes bad. However, refrigeration keeps it fresh for longer.

    Tips for Storing Butter on the Counter

    While certain types of butter should be kept in the fridge, it is fine to keep regular, salted butter on the counter.

    Here are a few tips you can follow to make sure your butter stays fresh when stored at room temperature:

    • Only keep a small amount out on the counter. Store the rest in the fridge or freezer for future use.
    • Protect it from light by using an opaque container or a closed cabinet.
    • Store it in an airtight container.
    • Keep it away from direct sunlight, the stove or other sources of heat.
    • Store butter out of the fridge only if the room temperature stays below 70–77°F (21–25°C).

    There are plenty of butter dishes specifically designed to meet most of these needs, but an opaque plastic storage container also works well.


    Keep butter fresh at room temperature by using it quickly, storing it in an airtight container and protecting it from light and heat sources.

    The Bottom Line

    Keeping butter in the fridge maximizes freshness, while leaving it on the counter keeps it soft and spreadable for immediate use.

    It’s fine to keep regular, salted butter out of the fridge, as long as it’s concealed from heat, light and air.

    But anything you won’t use in a few days or weeks will stay fresher longer if you store it in the refrigerator or freezer.

    On the other hand, unsalted, whipped or raw butter should be kept in the refrigerator.

    Is Land Lakes butter real butter?
    To answer your ingredient question, our butter is made with just cream and salt. Butter is 80 percent fat, and no oils are added to our stick butter. more
    What butter is real butter?
    Unsalted Butter or “Sweet Cream Butter” (Real) It's probably your go-to, and for good reason. Containing around 80% milkfat, this butter is the most versatile in cooking from baking to sautéing. more
    Can you put butter back in the fridge?
    Both unsalted butter and whipped butter should be refrigerated. However, if the temperature in your kitchen goes above 70 degrees F in your kitchen, any butter (salted, unsalted and whipped) should go in the refrigerator to avoid spoilage. You can even store your butter in the freezer for up to a few months. more
    How long does butter last in fridge once opened?
    According to the US Department of Agriculture's Food Safety and Inspection Service, butter can be safely stored in the fridge for up to three months. You can also store butter in the freezer, for later use, for between six to nine months. more
    Is whipped butter healthier than regular butter?
    On average, a tablespoon of whipped butter delivers 70 calories, 7 grams of fat and 5 grams of saturated fat. Compare this to a tablespoon of regular stick butter, which has 100 calories, 11 grams of fat, and 7 grams of saturated fat, and you're definitely looking at some pretty decent calorie and fat savings! more
    How long is butter good for in the fridge?
    According to the USDA, butter (opened or unopened) can be kept in the refrigerator for one to three months. It can also be frozen for up to a year. The taste and texture will change considerably after that point, so aim to only buy as much as you think you can use within a year. more
    Can butter mold in the fridge?
    Due to its high fat and low water content, butter has a longer shelf-life than most dairy products, but butter can get moldy. Once mold starts growing visibly, we suggest throwing it out. Mold roots and spores also grow throughout butter and are not always easy to spot or remove. more
    Where should butter be stored in the fridge?
    Unsalted butter or whipped butter, however, should be stored in the back of the refrigerator to prevent them from going bad—although it's fine to take the butter out to soften an hour before using if needed. Homemade, raw milk, or any butter that is not pasteurized should also always be refrigerated. more
    Should butter be kept in the fridge?
    It Stays Fresh Longer in the Fridge Salted butter does not need to be stored in the fridge since the risk of bacterial growth is so low. Studies have shown that butter has a shelf life of many months, even when stored at room temperature ( 6 , 10 ). However, it will stay fresh longer if it is kept in the refrigerator. more
    Which butter is real butter?
    1. Unsalted Butter or “Sweet Cream Butter” (Real) It's probably your go-to, and for good reason. Containing around 80% milkfat, this butter is the most versatile in cooking from baking to sautéing. more


    You may be interested in...

    Will bitcoin survive this crash?

    Why is Aldi closing for 3weeks?

    Is Babe appropriate for a 4 year old?

    Do wealthy people use leverage?

    Is McGuffin a Scottish name?

    Which insurance has no waiting period?

    Will hemp oil show up on a drug test?

    What position is higher than RN?

    Will Oklahoma get extra food stamps this month?

    What is the easiest world records to break?

    Do you tip Costco appliance installer?

    Why do Secret Service talk into their hands?

    How do you make a cheap crypto miner?

    What is TN families first?

    Which jobs will be popular in the future?

    About Privacy Contact
    ©2022 REPOKIT