This post may contain affiliate links. Please read my disclosure policy.
Have you been considering buying an Instant Pot? The fact that you can put the food in, close the lid, push a couple of buttons, and then walk away, even out of the kitchen makes this a must-have appliance in today’s kitchen. It’s just so easy to use. But what size Instant Pot should you get?
Maybe you already own one and you’re thinking of buying another one and you’re not sure which size you should get. Well, I took the three main sizes of Instant Pots – 8 qt., 6 qt., and 3 qt. and compared them to help you have a better idea of which one is right for you?
UPDATE: Amazon Price Specials on Instant Pots (11/21/21)
- 8-Quart: Instant Pot DUO Plus, 8-QT 9-in-1 on sale for $79.95.
- 6-Quart: Instant Pot DUO Plus 6 QT 9-in-1 is on sale for only $59.00.
6-Quart: Instant Pot Pro 6 QT 10-in-1 is on sale for $79.95. - 3-Quart: Instant Pot DUO Mini 3 QT is on sale for $69.99.
- 3-Quart: Instant Pot Duo Nova 7-in-1 on sale for $49.95
- The New 10 QT Instant Pot DUO is $149.99. (I do not have this one included in the comparison. But I have heard from friends that it is very large.)
- Three years ago during Amazon Prime Day, I purchased a 6 qt. Instant Pot that was on sale. And I quickly realized what a great addition it was to my kitchen. The first thing I made was a continuous beef bone broth. I cooked the bones and water under pressure and then switched to slow cooking and kept it going for several days. We were having cups of delicious and healthy bone broth every day and I simply added additional water each day to replace what we had taken from it.
The next year when Amazon Prime Day came (July 10-11) I wanted to get my daughter her own Instant Pot as she was getting married that fall. The one that was on special was the 8 qt. size. When it arrived we realized how much bigger it really was than the one I already had.
Then just a few days later my sister told me about the newest Instant Pot that was a 3 qt. size. I immediately began thinking of ways that this size would be helpful. When it arrived we were instantly struck by how small and cute it was!
Now one thing about Instant Pots is that even though they are called Instant they really aren’t instant. They still need to come up to pressure to cook and that can take several minutes or more. But would the smaller Instant Pot come to pressure quicker and make my meals a little faster? Which one would work best for everyday use?
So I decided to test and compare them and see which one I liked best. I compared their sizes inside and out and how fast they came to pressure.
Let’s start with how tall are Instant Pots?
Starting out let’s look at their general size. The little 3 qt. is just adorable and lightweight. It would be easy to find a place on your counter for it.
The 6 qt. is a nice moderate height. I have an old farmhouse and the upper cabinets in my kitchen come down low so not very many appliances actually fit under my cabinets. But this one does! I always pull it out when I cook with it so when I release the steam it doesn’t go directly on the cabinets.
The 8 qt. is definitely a big girl. She isn’t going to be tucked away anywhere. She’s going to be a show stopper and take up her fair share of the space.
What’s the diameter of Instant Pots?
The inside of each pot is where the real action is going to be happening and how much can fit in it.
There are several things to think about when looking at the diameter. A frozen roast of good size isn’t going to fit in the 3 qt. If I’m going to be doing any freezer cooking where I place a frozen meal in the pot to cook I’ll need to be sure to freeze the meal in a container that will be slightly smaller than the diameter of the pot.
Also, the “pot in pot” method should be considered too. The “pot in pot” method is cooking foods inside the pot in smaller pots, like ball jars, ramekins, or stackable pans. This method would work in all three sizes but will be limited with the smaller 3 qt.
To give a comparison of the size of each I placed this large steamer basket inside each one.
The 3 qt. has room for the steamer with the sides straight up.
The 6 qt has room for the steamer with the sides spread out about halfway.
The 8 qt. has room for the steamer to spread the sides out about 3/4 the way.
Of course, you can close the sides on the steamer and enclose what is being cooked and even layer this above another dish, but this way you can get a feel for the size difference.
What comes with an Instant Pot?
All three of these Instant Pots come with a wire rack, a measuring cup, two spoons, and a little cup that attaches to the back of the pot to catch condensation. They each come with a recipe book, general instruction book, and a quick look sheet.
How fast does an Instant Pot come to pressure?
The things that you can cook in the Instant Pot is endless. To that end, I have several links at the end of this post featuring delicious recipes that would be just the tip of the iceberg.
So I wanted to cook something that was common and that I had success with already with my 6 qt. pot. I decided to make the brown rice recipe that is included in the recipe book that comes with each Instant Pot. I put the 2 cups of brown rice in each pot. Added in 2 1/2 cups of water and closed the lids. Made sure the steam valve was closed and set the pots on Manual/Pressure Cook for 22 minutes.
As soon as they started I set that timer and watched the pots. I was ready to jot down the time that it took for each one to come to pressure and then begin to do actual 22 minutes of cooking at pressure.
Which one would get to pressure first. I thought that the 3 qt. would be the first, but I was wrong. The first to come to pressure was the 6 qt.
The 6 qt. took 8:47 minutes to come to pressure.
The 8 qt. took 9:46 minutes to come to pressure.
The 3 qt. took 11:15 minutes to come to pressure.
I was really surprised.
When the pots were all done and the pressure had been released the surface area of the pots did seem to make a difference in the final outcome of the rice. All the pots of rice were perfectly cooked, but the width of the pot of the 8 qt. seemed to make the rice cook a little more and almost was sticking to the bottom of the pot in a few spots. The 3 qt. rice was the fluffiest and prettiest and there was no sticking at all. The 6 qt. seemed somewhat in the middle, nicely cooked, no sticking, but not as fluffy as the 3 qt.
I really thought the 3 qt. would come to pressure quicker and make the total cooking time less, but the wattage is not as strong on the 3 qt. and it did make a difference in cooking time.
Which Instant Pot do I like the best and my recommendations
The 3 qt. didn’t make my rice cook any quicker, but it’s so cute and handy I think I’ll be using it a lot as an additional helper. Plus it’ll be perfect to cook sides in or when cooking for 1-2 people. My sister loves to use this size to keep her cheese dips warm during parties. She likes it better than using a slow-cooker as the sides don’t get overcooked or hard.
The big 8 qt. will go with my daughter when she gets married, but I have a feeling I’m going to miss it. It can hold a lot. Cooking for a family of 5 or more this would be the one to go with.
The 6 qt. will probably always be out on my counter ready to go. Is it just right? It’s pretty close, but if I had a growing family I think the 8 qt. would win out. And if my cabinets were just a little higher. Overall, if you are cooking for 2-4 (maybe 5) people I think this would be the best size.
Instant Pot Accessories
There a lot and I mean a lot of accessories that you can use in your Instant Pot to make your cooking experience even easier. Here are a couple that I recently purchased that I can see myself using frequently.
The pan on the left is a 6″ x 3″ cheesecake pan. When I found out that my future-son-law loves cheesecake I decided I needed to get one of these pans. I’m planning on making Carey’s Cheesecake for him and then I’ll need to find a good dairy-free recipe for us girls. If you know of any please leave me a link in the comments below. This pan fits inside all three sizes of the Instant Pots.
The 3 qt. wire mesh container on the right is great for cooking things like a whole chicken, well actually anything with bones in it and you can pull it right out without having to fish around for them or pour through a strainer. It also came with two handles on the sides and I popped them off so it would easily fit in the Instant Pots. You could bend them straight up, but when I did that part of one side popped off, so I decided to just take them off. This strainer does not fit in the 3 qt. Instant Pot– it’s basically the same size.
And then there’s this glass lid that my sister bought for her Instant Pot. This is the 8 qt. size. This is would be very handy for serving food to guests from your Instant Pot. That way they wouldn’t have to navigate the pressure lid as it can be a little tricky getting on and off if you’ve never handled it. There is also a glass lid the 6 qt., and a glass lid for the 3 qt.
They also have a very handy silicone lid. 8 qt. silicone lid, 6 qt. silicone lid, 3 qt. silicone lid.
Tips for Adjusting Recipes for 8 qt, 6 qt, and the 3 qt Instant Pots:
The Instant Pot website says that you do not need to adjust cooking times between the three sizes. That stays the same. But you do need to adjust the liquid that you add to the pot to bring the food to pressure.
- For the 6 qt, it calls for 1 cup liquid to be added to the pot.
- For the 8 qt, it calls for 2 cups liquid to be added
- And the 3 qt calls for 1/2 cup liquid to be added.
Except for foods that absorb the liquid like rice, pasta, or oatmeal. You leave the liquid amount the same.
MamaShire Instant Pot Recipes:
Farmhouse Beans & Sausage
Easy Instant Pot Vegetable Soup
Instant Pot Potato Soup (Dairy-free)
Gluten-Free Creamy Hamburger Soup (Dairy-Free)
How to Cut and Cook a Spaghetti Squash
Dairy-Free Zuppa Toscana (Gluten-Free)
Traditional Beef Stew (Gluten-Free)
UPDATE: Amazon Price Specials on Instant Pots (11/21/21)
- 8-Quart: Instant Pot DUO Plus, 8-QT 9-in-1 on sale for $79.95.
- 6-Quart: Instant Pot DUO Plus 6 QT 9-in-1 is on sale for only $59.00.
6-Quart: Instant Pot Pro 6 QT 10-in-1 is on sale for $79.95. - 3-Quart: Instant Pot DUO Mini 3 QT is on sale for $69.99.
- 3-Quart: Instant Pot Duo Nova 7-in-1 on sale for $49.95
- The New 10 QT Instant Pot DUO is $149.99. (I do not have this one included in the comparison. But I have heard from friends that it is very large.)
Barbara
How does the 3qt size do as a slow cooker?
MamaShire
I haven’t used the 3-quart as a slow cooker myself, but my sister has borrowed my 3-quart to take a cheesy dip to parties and used the slow cooker feature to heat the dip and keep it warm. She says it works great.
Barbara
Have you used your 6 qt size as a slow cooker? Nobody I am polling has used it as a slow cooker.
MamaShire
Barbara, I use my regular slow cooker when I slow cook.
Melanie Gordin
Can you tell me the height of the 6 Qt pot without the lid? Thanks!
MamaShire
With the lid off it’s just under 9 3/4 inches.
Margie
I love your web site , thank you so much for all the research you do I have learned so much. Would a 3qt instant pot be big enough to use when I cook using my cookbook recipes from “cooking for two “ I prepare meals for home bound seniors.
Thank you so much for the information on what size to buy.
MamaShire
I’m so glad you’ve found my site helpful! That’s wonderful to hear. Recipes for two should fit in the 3qt Instant Pot just fine.
Tobee
I wish I would have read this article sooner! A lot of great information here. My husband bought the 8 quart for me and it’s quite large especially since it’s just the two of us. If I ever have to cook for the family however, it will be perfect. I love it, but it does take up so much counter space like you mentioned. I have also used it as a slow cooker and it works wonderfully!
Stephanie
I bought a 8qt instant pot, but most recipes are for 6 qt. How do I adjust ingredients or cook time without losing flavor?
MamaShire
From the Instant Pot website, it says you do not need to adjust cooking time but you do need to use 2 cups liquid for the 8 Quart instead of the 1 cup that the 6 Quart calls for. Except for when the food is absorbing the liquid like rice, pasta, or oatmeal. In those cases leave the liquid the same as the recipe calls for. And for the 3 Quart you would half the liquid to 1/2 cup but again leave the liquid the same as the recipe calls for foods like rice, pasta or oatmeal. Thanks for asking this, I’ll add this into to the post.
Danielle
I am just cooking for myself so the 3 QT seems best but I often like to prepare a weeks worth of servings. Can the 3 QT handle at least 5 servings worth at a time for my weekly food preps? How many servings can it do at once?
MamaShire
If you are cooking for at least 5 servings at a time I would suggest going with the 6 QT. The 3 Qt is great for 1-2 servings and sides.
Hallie Kraft
Can you cook 1 or 2 servings in the 6 QT?
MamaShire
Yes, you can.
Tricia
I’ve been on bedrest for the last couple months. Everything I cook has to be at the side of my bed. I am a single mom to a 12yr old son. Which size would you recommend for me?
MamaShire
I’m so sorry, that must be so hard. If you have limited space I think the 3-quart would work well for you. If you have a little extra room the 6-quart would allow you to make larger amounts so you could have left-overs.
Darci
We have a family of 5 which do you recommend? The 6 or 8?
MamaShire
I would say the 8-quart would work best in the long run for a family of 5.
Brenda
This post and all the info you provided is so helpful! I’m a senior who lives alone. Thanks to the great guidance here, I now know the 3 qt. size will be perfect for my needs.
MamaShire
I’m glad it was helpful for you!
BalancingAct
Super helpful post! Still have a question: Trying to decide btwn the mini or the 6. I mostly will use it for quinoa and lentils and sometimes Indian food (I’m vegan). Occasionally rice but don’t need/want leftovers, so a small amount. It seems the 3 quart is the one, but, most of the recipes are for the 6 quart and I’ve read that you can’t just cut the ingredients in half to work with the mini. When you say the cooking time remains the same but the water needs to be adjusted, if for instance, the recipe calls for 1.5 cups of water, is that too much for the mini or when you say the mini has to have 1/2 cup of liquid, that is the minimum it has to have but more is ok ? I’m new to pressure cookers (obvi). Prefer the size of the mini but the 6 may be a wee bit more versatile when you talk about add-ons altho, being new to this, I don’t know what add ons I might use. On the other had, as I write this there’s a video on the right where someone (you?) is making what looks like a gluten-free cake or maybe bread? Doesn’t say. Is that with the instant pot and if so, can that be done in the 3-quart? Thanks much in advance!
MamaShire
Overall, I think the 6 quart is more versatile than the 3-quart. I’ve been cooking for myself and I always go for the 6-quart. I tend to use the 3 -quart if I’m needing to make a side or something small. I’m not sure what video would have been playing since they play randomly but there are ways to make bread or cakes in the Instant Pot. I don’t have any recipes on my site yet for those but you can google it to find some that you might like. The amounts of water that you need to make quinoa or lentils do vary with the size of the pot. Each pot will come with directions for basic grains so you’ll have clear directions on how much to use.
Cynthia
Thank you so much for this review!! I was a two-crockpot household until one of them broke and I’ve been trying to figure out if an Instapot is right for me.
MamaShire
You’re so welcome! I hope if you decide to get one that you enjoy its convenience as much as I do!