#2 vs. #4 Coffee Filter Sizes Explained

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Samanta Fryer
Samanta Fryer
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Samanta Fryer is our senior editor and content writer, at CoffeeVibe. Apart from writing and reading, she’s fond of the coffee brewing process and enjoys tasting new coffe read more
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Ryan Hendricks
Ryan Hendricks
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Ryan Hendricks is our tester, who puts products through their paces. He used to be a barista and is now a full-time coffee enthusiast. He’s always testing out new gadgets, read more
Last updated: August 13, 2023
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It can be confusing to figure out which is the right size filter for your coffee-making needs. You might not be sure if you will get a different result when you use a coffee filter 2 vs 4 or when you use different processes to make your coffee. There is a difference between #2 and #4 coffee filters and you should know what that difference is before you buy. You will find that the size of your filter can directly impact the kind of coffee-making experience that you have, especially with certain coffee makers.

Be aware as well that there is a difference between #2 and #4 cone coffee filters for certain machines as well. Using the recommended coffee filter for your machine is a good idea, but there are instances where you might want to deviate from the recommended filter for best results with your particular coffee.

General Coffee Filter Size Chart

#2 vs. #4 Coffee Filter Sizes Explained

If you want to know more about no 2 vs no 4 coffee filters, this size comparison chart can help you to better understand the difference between 2 vs 4 coffee filters. Overall, you need to know the following:

  • #1 Coffee Filters

This size is for cup coffeemakers or for pour over systems.

  • #2 Coffee Filters

This size is for 2-6 cup coffeemakers or for coffeemakers that are 1-2 cup pour overs

  • #4 Coffee Filters

These filters are for 8-10 cup coffeemakers or for pour over systems

  • #6 Coffee Filters

This size is for large 10+ cup coffeemakers. You can tell right away when looking at this list that you will often be choosing between a coffee filter #2 vs #4 and not one of these other filter types. Your coffee maker will tell you if it is made for a coffee filter 4 vs 2 as well, which can give you a guideline to begin with. Also you can look here top picks of best 5 cup coffee makers, if you don’t have a coffee machine yet.

The size of the coffee Trusted Source Caffeine Q & A | University Health Service Find out how much caffeine you’re consuming. uhs.umich.edu pot on your machine can be a good guideline for your coffee filter purchase. You will find that it is much easier to tell what size filter you need from this indicator than from eyeballing the filter in the machine. You might also be able to look at the user guide for your particular machine to figure out which kind of filter is the most ideal for your needs. Knowing more about the filters that you buy can help you to have a good result from every pot of coffee that you brew, so you should continue reading to learn more about what is different about these two coffee filter sizes.

Size 2 vs. Size 4 Coffee Filter Comparison

If you are still wondering what is the difference between #2 and #4 coffee filters, then this detailed discussion should help you to get a grasp on the essential differences between 2 vs. 4 coffee filters. These differences have a lot to do with the capacity of your coffee maker and how many cups of coffee it can make, which means that you also need to know a little bit about the machine that you are using for your coffee brewing efforts.

Size

The #2 filter will measure 4 inches from the bottom to the top. The #4 filter will be an extra inch bigger all around. This is because these filters are made to fit different size filter baskets on machines that brew more than one cup of coffee at a time. While single-cup machines are increasingly common, you will still need to use these two sizes of filters for standard coffee makers of all kinds. The volume of coffee that your coffee machine can make will help you decide which of the two filters are needed. The filters are otherwise the same minus their size, so the choice between #2 and #4 is all about the size of the basket on your coffee machine. Many people do not realize that this is the reason for the sizing of coffee filters because most people are not aware that coffee machines with larger volume carafes have larger baskets as well.

#2 vs. #4 Coffee Filter Sizes Explained
The only difference between #2 and #4 filters is their size.

Shape

The shape of your coffee Trusted Source Health Benefits of Coffee | Rush System 7 ways your favorite pick-me-up might also boost your health www.rush.edu filter can vary based on the style of machine that you have. You will need to be aware of the shape along with the size of the filters that you need before you buy. There are three main shapes of coffee filters that are made for different kinds of machines.

  • conical
  • bucket
  • disc

The shape of the basket in your machine will dictate which of these filters you pick, but the number will be the same with regard to the circumference of the filter for the basket in question. Conical filters taper to form a cone, and this is more common for pour-over systems than drip systems. Bucket filters are the most common shape, and many coffee makers use this kind of filter. Disc filters are made for French press-style machines and other kinds of pressing coffee makers rather than a drip or pour-over system Trusted Source How To Brew The Perfect Cup Of Coffee Texas A&M’s Center for Coffee Research and Education coffee training and program director lays out how to make a cup of coffee feel as good as it tastes. today.tamu.edu .

You will need to get a filter that matches the shape that your machine requires, or you will not have good results for your brew. At best, you might have a small amount of coffee grounds that escape around the filter into your carafe, and at worse, you might make coffee that you can’t even enjoy because it is full of coffee grounds and didn’t get brewed properly.

The filter that you are using in your machine is really important for a variety of reasons and getting the shape right for your machine’s needs is really important.

Thickness

The thickness and material of the filter can matter depending on how much filtering you want your coffee to go through when it is being processed. The thicker the filter, the less material gets through, which means that fine grounds and other debris will not make it into your cup. You might impact the flavor of your coffee with a thick filter, however.

The larger question when it comes to thickness is whether or not the pore size of the filter allows your coffee to be full-bodied and flavorful Trusted Source For Your Health – The buzz on coffee and health For something that so many people love, coffee has a bit of a bad reputation when it comes to health. Even among coffee drinkers themselves, surveys have found that a large majority believe their regular habit is, to some degree, unhealthy. siteman.wustl.edu . The thicker the paper, the less likely it will be that the pores will open fully and allow the coffee to really breathe as it steeps. This is a debated point among coffee lovers, and most coffee aficionados will have a brand of filter that they prefer due to the pores in the material that it is made with. You might want to try some different thicknesses of filter to see if you perceive of a difference in the flavor and nature of the coffee that is made with these varying filter thicknesses.

Machine capacity

The capacity of the machine is what determines if you need a #2 or a #4 filter. The #2 filter is meant to be used for machines that 2-6 cups of coffee. The #4 is for machines that make 8-12 cups of coffee. You can also use the #2 with non-electric coffee makers that make a small number of cups per brew. The #2 coffee filter will be 6.25 inches wide, and the #4 will be 7.5 inches wide. You might need to figure out the size of the basket of your machine if you are not sure how many cups it makes. You can also look at the number of cups that are indicated on the coffee pot for guidance about your machine’s capacity.

FAQ

Can you use a #2 filter in a #4 device or vice versa?

While you might be able to get away with using the wrong size filter in your coffee maker, you can make a big mess, and you can impact the quality of your brew as well. You will want to try and stick to the correct size of coffee filter for all of your coffee-making devices for the best results.

What is the most common coffee filter size?

The most common filter size is a #2. Bigger coffee pots are not as common as they once were since people can make single-serving size coffee with ease these days, and due to the rise of the coffee shop, which makes it simple to get fancy coffee that you don’t have to make at home. Most machines that use a filter will make about 2-6 cups of coffee today.

What’s better: a cloth filter or a metal one?

#2 vs. #4 Coffee Filter Sizes Explained
Despite giving you a more flavorful cup of coffee, the metal filters are harder to produce and clean than cloth ones.

Metal filters will make it possible to get a really bold and flavorful cup of coffee while a cloth filter will give you a lighter brew. You will not be filtering out as many of the coffee’s oils when you use a metal filter as well. A metal filter is far less common just because these items need to be made to fit specific machines and can be harder to source. They will also need to be cleaned, which is not something that everyone wants to have to do after each time they brew coffee.

Final Thoughts

When you are looking into getting the right coffee filter for your needs, you have a lot of considerations to keep in mind. Make sure that you are aware of the differences in the final brewing outcome when you choose a metal filter over a cloth one, and be sure that you know how many cups of coffee your coffee maker can craft. These details will help you choose the right filter style and size for your coffee pot.

When selecting a coffee filter 2 vs 4, you mostly just need to know what the capacity of the basket is in your coffee pot. This makes the choice really simple and makes it possible for you to protect the health of your coffeemaker for the long haul. Pour-over systems can require unique coffee filters and you might need to verify the shape and design that is required for this kind of coffee system using the user manual of your machine.

References

1.
Caffeine Q & A | University Health Service
Find out how much caffeine you’re consuming.
2.
Health Benefits of Coffee | Rush System
7 ways your favorite pick-me-up might also boost your health
3.
How To Brew The Perfect Cup Of Coffee
Texas A&M’s Center for Coffee Research and Education coffee training and program director lays out how to make a cup of coffee feel as good as it tastes.
4.
For Your Health – The buzz on coffee and health
For something that so many people love, coffee has a bit of a bad reputation when it comes to health. Even among coffee drinkers themselves, surveys have found that a large majority believe their regular habit is, to some degree, unhealthy.

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