Bacon Fat: A Definitive Primer/FAQ (2024)

Last week, I threatened to throw out my incredible store of bacon fat, and was (properly) chastised for my irrationality. I began investigating and couldn’t really find a satisfactory explanation of the great enigma that is bacon fat online. So this week, I thought I’d devote my post to trying to explain exactly what this bacon fat is, what I’m supposed to do with it, and, perhaps most importantly, how I’m supposed to keep it without it going rancid. Without further ado, I present to you, the Top 10 Most Frequently Asked Questions (in my head) About Bacon Fat, answers according to me (corrections and further explanations welcome):

1. What is bacon fat?
Believe it or not, there are several types of fat you can get from just one pig (pigs being the most multipurpose animals ever). “Lard” is the general term for rendered pork fat; depending on what part of the pig the fat came from, it can be either back fat/fatback (from the back/shoulder/rump of the pig), leaf lard (from around the kidneys), caul fat (from around the intestines), or belly fat (from the belly). Bacon fat is from the belly.
Bacon Fat: A Definitive Primer/FAQ (2)

2. What is the difference between bacon fat and lard?
Bacon fat is a type of lard. That said, the product you can buy labeled “lard” and the bacon fat you can make are not the same thing; bacon fat will have a smokier flavor than lard, which should have a purely neutral flavor.

3. Isn’t bacon fat terrible for you?
Part of my reasoning on throwing out my bacon fat was, really, am I going to fry things in bacon fat? Shouldn’t I be using olive oil, or at least butter? Well, I’ve now read a fairly detailed description of the components of pork fat (approximately 39% saturated fat, 45% monounsaturated fat, and 11% polyunsaturated fat, for those of you who that means anything to), and while I still understand little of it, I’m convinced that pork fat is okay for me. I think this mostly has to do with the fact that bacon fat is not trans fat, which as we all know, has been declared America’s #1 Enemy (orange alert level).

4. How do I render bacon fat?
Now we get into the meat of it (ha, ha). According to Meriam-Webster, “to render” simply means “to extract by melting”; ie you are extracting the bacon fat by heating up (melting) the bacon. So cook yourself up some bacon! The fat it’s swimming in by the end is the rendered bacon fat. Remove the bacon itself with tongs or a spatula onto a plate lined with paper towel. The fat left in the pan is your gold. LET IT COOL BEFORE YOU POUR IT OUT. LET IT COOL. LET IT COOL. I will get to more explanation of this in #6, but for now, just remember: bacon fat is very hot. It will burn. LET IT COOL (but not solidify).

5. Should I strain bacon fat? How do I do that?
Yes. If you don’t strain the bacon fat, there will be little chunks of browned bacon floating around in it, and they are what will gather bacteria and make the fat go rancid. A better question might be: Have you ever strained your bacon fat? The answer, sadly, would be no, I didn’t know I should until extremely recently. My unstrained bacon fat hasn’t killed me yet, but I’ve been keeping it in the freezer (which we’ll get to). From now on, I plan on straining, which you can do – fairly easily, it seems – by pouring the fat through either a paper towel, a coffee filter, or a fine sieve.

Bacon Fat: A Definitive Primer/FAQ (3)6. What kind of container should I store bacon fat in?
In my earlier post, I suggested using an aluminum can (cleaned out, of course). This was a little misleading of me – I think that would be a good way to store bacon fat, but not the way I have been. Though, as you can see from this picture, my storage system hasn’t worked out perfectly. I use a thick plastic container, well-cleaned, which was working great until one day I poured the bacon fat in when it was still too hot. Now I may have a bit of melted plastic in my bacon fat.

It could have been a lot worse – if you pour fat that is too hot into a glass jar, the glass may shatter. Yikes. I think I will be sticking with my plastic (well-fitting lid, no fear of shattering), but I’m going to watch the fat’s temperature more carefully from now on. Reading various online forums, I’ve come to the conclusion that a lot of Southern grandmothers store their bacon fat in coffee cans. That seems like a good idea to me, but I never use coffee from a can, so it’s an impossibility right now.

7. Where should I store bacon fat?
And now we’ve come full circle to the motivation for this FAQ in the first place. I said I stored my bacon fat in the freezer and was called out on this because the fat gets really, really pretty solid, which means I’m less likely to use it. Michael, my friend and a cook I respect, said he keeps his bacon fat on his stovetop. His enthusiasm almost won me over to this idea. Bacon fat, right there, at my disposal? Great!

Almost. I can’t quite handle the idea of keeping the bacon fat right there on the stovetop, even if it were filtered (in which case it is actually supposed to be shelf-stable). Most people I ran across in CHOW forums or otherwise couldn’t handle it either (though most of them cited their Southern grandmothers who keep the bacon fat in a coffee can in the cupboard and are 95 years old and still kicking). Mine is going to live in my fridge from now on, which I think is a happy compromise.

8. How long will bacon fat keep?
I have had mine since about September, so that’s six months now, in the freezer. I’m not sure about in the fridge or shelf. Basically, you just keep adding rendered bacon fat to the same jar – I’m not sure if it mixes somewhat or just striates. White bacon fat is great. Beige bacon fat (what I have now) is fine. When your bacon fat has turned brown, it goes in the trash and you start a new jar, no matter what Michael says.

9. Now that I have all this bacon fat, what do I do with it?
As I’ve learned since my comeuppance, there are myriad uses for bacon fat. Basically, you can use it the way you would olive oil or butter to sauté – it will just have a smokier flavor. You can cut it into pastry or biscuits (as Toby suggested in the comments on the freezer post). At this point, I have a lot of bacon fat, so my next project is Bacon Fat Spice Cookies.

10. Can we talk about the fact that this already has a Wikipedia page?
So it’s not bacon fat, exactly. Still, crazy! Next project after Bacon Fat Spice Cookies.

With thanks to Jennifer McLagan’s Fat: An Appreciation of a Misunderstood Ingredient, With Recipes, Simply Recipes’ explanation of Rendering Bacon Fat, and the hundreds and hundreds of people who (surprisingly or not so surprisingly) have contributed to forums on the various aspects of this apparently tricky subject.

Bacon Fat: A Definitive Primer/FAQ (2024)

FAQs

Does bacon grease go bad if not refrigerated? ›

Although many of us grew up with relatives who stored their bacon grease in a jar or can set on the counter or on the back of the stovetop, food safety experts don't recommend storing it that way now. Instead, store bacon grease in the refrigerator (up to 3 months) or freezer (indefinitely).

Do you refrigerate bacon up after opening? ›

Refrigeration is optional for Bacon Up.

Bacon Up will change from solid to slushy to liquid (and back again) as its temperature rises (and falls). That's normal and does not reduce its quality. For long-term storage, we recommend keeping Bacon Up at temperatures below 80°F.

How can you tell if bacon grease is bad? ›

You can tell if your bacon grease has gone bad by checking the smell or color. We may refer to bacon grease as liquid gold, but if you notice your stored bacon grease turns from white to yellow, it's time to throw it away! Also, if it has a sour, fishy, or unpleasant odor, it needs to go in the trash.

How long does it take bacon grease to solidify? ›

Refrigerate for 5 hours or so until the fat has solidified. (You could also freeze it for 2 hours to speed up the process.) The mixture will separate into a layer of clarified fat and a layer of water mixed with impurities.

When should you throw out bacon grease? ›

Line a cup (or even the sink drain itself) well with heavy-duty foil. Carefully pour the hot fat into it and let it harden (or, if using a cup, place the cup in the freezer). Once the fat hardens, wrap the foil around the fat and toss it in the trash.

How long can bacon sit out at room temperature? ›

The general rule of food safety is to not let raw meat or cooked food sit out for more than 2 hours, and that rule applies to uncooked or cooked bacon. It's wise to be careful with uncooked pork products since they can harbor and grow bacterial pathogens like salmonella and trichinosis.

Can you leave unsealed bacon in the fridge? ›

You can keep bacon in the refrigerator at 40 ºF or below for one week. Bacon can also be frozen at 0 ºF for four months (for best quality). For more information about bacon and storage of other bacon products, go to Bacon and Food Safety.

Can I put bacon back in the fridge after opening? ›

Raw bacon in a package that has been opened and re-sealed will last up to a week in the fridge, and cooked bacon will last four to five days if it's properly stored. You can also store bacon in the freezer.

Can I leave bacon grease on the counter? ›

Though previous generations of home chefs kept bacon grease on the counter, experts recommend storing yours in the refrigerator or the freezer. "It's best to not keep the bacon grease at room temperature because any microparticles of the bacon can cause the grease to go rancid," says Abbott.

Is it bad to cook eggs in bacon grease? ›

It turns out that cooking eggs in bacon fat (or “liquid gold” as we like to call it) allows the edges to become crispy and ensures the yolk stays soft and tender. The grease also infuses the eggs with a salty and smoky flavor, eliminating the need to add tons of salt afterwards.

Can you use week old bacon grease? ›

I also have an ice cube tray with a lid that works perfectly in the freezer for keeping small amounts (like about 1 tablespoon) of bacon grease handy so I can just pop one out and add it to my favorite dishes to add tons of great smoky flavor. In the fridge, the bacon fat will last for about 4 months.

How long does bacon grease last in a sealed container? ›

How Long Does Bacon Grease Last? Store your container in the fridge where it will last for three months, or in the freezer where it will last indefinitely. Storing the grease in the fridge is the best for easy access to soft fat whenever you want it.

Should you pour bacon grease down the sink? ›

The overarching rule of thumb when it comes to grease and oil disposal is don't pour it down a drain. Toilets, sinks, and floor drains are all off-limits as gluey oils and animal fats will destroy your plumbing. Instead, turn to your garbage can.

Can you flush bacon grease down the toilet? ›

Save your pipes! Pouring cooking oil, poultry fat or grease into the kitchen sink or toilet can cause sewer backups. Visit Trash It. Don't Flush It. to learn more about how grease can impact the sewer system.

How to tell if bacon is bad? ›

The only smell you should detect from bacon is a faint smokiness. Slime: If your bacon is slimy, it's a sure sign that bacteria are present and spreading on the meat. Toss it out! Discoloration: Green, grey, or brown discoloration means that the bacon is no longer safe to eat.

Does bacon need to be refrigerated after cooking? ›

Take the bacon home immediately and refrigerate it at 40°F or below. For shelf-stable, cooked bacon, store the product at 85°F or below. Refrigerate after opening. Observe the manufacturer's recommended "use-by" date.

Can you leave bacon grease in a cast iron skillet? ›

Do you need oil for cooking bacon? No, bacon is full of natural fats that liquefy as it's cooked. You can let this bacon grease cool and store it for later use. Bacon grease is great for seasoning cast iron skillets.

Can bacon go rancid in the freezer? ›

Rancidity develops even in the freezer and the presence of the curing salts hastens its development. The Food Marketing Institute recommends that opened bacon not be frozen. Their recommendation is that unopened bacon only be frozen up to one month.

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