How to Choose an Inline Filter – Mesh and Particle Size | ISM

Filter Mesh, Microns and Inline Filter Choice
Filtration is filtration right? Well, like all things technical it is not as simple as that when it comes to particle separation. The easiest way to start thinking about inline filter choice is by looking first at filter mesh. In this post I want to give you a simple mental picture of what filter mesh or screen is and an overview of how different sizes of mesh are described.

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Filtration Basics
Fishing net is basically a filter used to separate fish from water. Like fishing net, filter mesh is woven metal wire or plastic strands which stops particles that are too large from passing through openings in the mesh. Filter mesh is considered a surface filtration type of material or media because particles are captured on the surface of the mesh.

What a surface filter can do:

• Capture particles that cannot pass through holes in the mesh
• Be easily cleaned using backwashing

 

Why Size Matters
Just as a fish net used to catch salmon cannot catch minnows, you need to choose a useful filter mesh. When choosing a mesh, you need to remember that mesh numbers and mesh sizes are not the same thing.

Mesh Number
You will often see the US Standard Mesh number used to describe mesh size. The US Standard Mesh number is the number of openings per inch of mesh. The larger the mesh numbers the greater the number of openings per inch and the smaller the openings in the mesh. Convert US Standard Mesh to microns, inches and millimeters.

Mesh Size
Mesh size is the actual size of the openings in the mesh. This is usually given in fractional inches and millimeters and/or microns. A micron (μm) is one thousandth of a millimeter or one twenty-five thousandth of an inch.

Strand Diameter
Descriptions of mesh include the diameter of the strands used in the weave. Mesh made with the same mesh number but made with thicker strands will have smaller mesh openings.

For more help understanding the relationship between mesh number, mesh size and microns check out our Mesh and Micron Sizes resource as well as this online mesh calculator.

How Much is Too Much?
The higher the mesh number the more surface area is taken up just by the strands. The surface area of the mesh openings as a percentage of the total surface area of the mesh is the Percent Open Area (POA). A higher POA means a greater flow.

Well, there you have it; a brief outline of some of the technical issues that come up when describing filter mesh. You need to keep these points in mind when thinking about filter mesh as it relates to the selection of the proper in-line filter for your application:

• Mesh is a type of surface filtration that can be cleaned by backwashing.
• Mesh is made in a variety of metals, metal alloys and plastics.
• Mesh number is not mesh size. It is the number of openings per inch.
• Mesh size (pore size) is usually given in fractional inches and millimeters and/or microns.
• Filament diameter affects both the mesh opening size and the percent open area.
• The higher the percent open area of a mesh, the higher the flow the mesh can handle.

 

Look for our upcoming blog article for a discussion of chemical compatibility:

How to Choose an Inline Filter – Chemical Compatibility

 

 

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There's nothing quite like the aroma of freshly brewed coffee filling your home or office. But have you ever stopped to consider the quality of the coffee you're drinking? If you're using a traditional paper filter in your coffee maker, you may be missing out on some of the rich and robust flavors that your coffee has to offer. That's where the mesh filter comes in. This simple yet effective tool can revolutionize your coffee game, providing a host of benefits that paper filters simply can't match. Not only does a mesh filter allow for a more complete extraction of the coffee's oils and flavors, but it's also more eco-friendly and cost-effective in the long run. Whether you're a coffee connoisseur or simply enjoy a good cup of joe, using a mesh filter in your coffee maker is a game-changer. Let's dive into the benefits and discover why it's time to make the switch.

How Do Mesh Filters Work?

Stainless Steel Mesh Filter for Coffee Brewer

Mesh filters are made of a fine metal mesh that allows the brewed coffee to pass through while trapping the coffee grounds. The holes in the mesh are small enough to prevent coffee grounds from entering your cup while still allowing the flavorful oils and nutrients to make their way into the brew. The mesh filter works by creating a barrier between the coffee and the water, allowing the water to extract the full range of flavors and aromas from the coffee beans.

Another benefit of mesh filters is that they are reusable, eliminating the need for paper filters. This not only saves money in the long run but also reduces waste and is better for the environment. Mesh filters can be easily cleaned and reused, making them a more sustainable and eco-friendly option for coffee lovers.

Benefits of Using a Mesh Filter

The benefits of using a mesh filter in your coffee maker go beyond just a better-tasting cup of coffee. Here are some of the advantages of using a mesh filter:

### Enhanced Flavor

One of the primary benefits of using a mesh filter is that it allows for a more complete extraction of the coffee's oils and flavors. With a paper filter, some of the oils and flavors may be trapped in the filter, resulting in a weaker-tasting cup of coffee. The mesh filter allows for a more complete extraction, resulting in a richer and more robust flavor.

### Cost-Effective

Mesh filters are more cost-effective in the long run than paper filters. While paper filters are relatively inexpensive, they must be replaced after each use, which can add up over time. Mesh filters, on the other hand, can be cleaned and reused multiple times, making them a more cost-effective option.

### Eco-Friendly

Mesh filters are also more eco-friendly than paper filters. Paper filters contribute to waste and are not biodegradable, meaning they can take years to break down in landfills. Mesh filters, on the other hand, are reusable and can be washed and reused multiple times, reducing waste and promoting sustainability.

### Versatility

Mesh filters are also versatile and can be used in a variety of coffee makers, including drip coffee makers, French presses, and pour-over coffee makers. This makes them a great investment for coffee lovers who like to switch up their brewing methods.

Mesh Filters vs Paper Filters

While paper filters are the most common type of filter used in coffee makers, they do have some drawbacks when compared to mesh filters. Here are some of the differences between mesh filters and paper filters:

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### Flavor

Mesh filters allow for a more complete extraction of the coffee's oils and flavors, resulting in a richer and more robust flavor. Paper filters, on the other hand, can trap some of the oils and flavors, resulting in a weaker-tasting cup of coffee.

### Cost

Paper filters are relatively inexpensive, but they must be replaced after each use, which can add up over time. Mesh filters, on the other hand, can be cleaned and reused multiple times, making them more cost-effective in the long run.

### Waste

Paper filters contribute to waste and are not biodegradable, meaning they can take years to break down in landfills. Mesh filters, on the other hand, are reusable and can be washed and reused multiple times, reducing waste and promoting sustainability.

### Ease of Use

Paper filters are easy to use and dispose of, but they must be replaced after each use. Mesh filters require more maintenance, as they must be cleaned after each use, but they are more durable and can last for years.

Mesh Filter Maintenance and Cleaning Tips

To ensure that your mesh filter lasts as long as possible and continues to provide optimal performance, it's important to keep it clean and well-maintained. Here are some tips for cleaning and maintaining your mesh filter:

### Rinse after Each Use

After each use, rinse your mesh filter with hot water to remove any remaining coffee grounds. This will help prevent buildup and ensure that your filter continues to function properly.

### Clean with Soap and Water

To deep clean your mesh filter, use a mild dish soap and warm water. Gently scrub the filter with a soft-bristled brush, taking care not to damage the mesh. Rinse thoroughly and allow to air dry.

### Avoid Harsh Chemicals

Avoid using harsh chemicals or abrasive cleaning tools on your mesh filter, as this can damage the mesh and reduce its effectiveness.

### Store Properly

When not in use, store your mesh filter in a dry, cool place to prevent rust or damage.

Different Types of Mesh Filters for Coffee Makers

There are different types of mesh filters available for coffee makers, each with its own unique features and benefits. Here are some of the most common types of mesh filters:

### Stainless Steel Mesh Filters

Stainless Steel Mesh Filters are the most common type of mesh filter where the core material is steel mesh and are compatible with most coffee makers. They are durable, easy to clean, and provide optimal flavor extraction.

### Gold Mesh Filters

Gold mesh filters are made with a layer of gold plating over a stainless steel mesh. They are slightly more expensive than stainless steel mesh filters but are more resistant to corrosion and provide a smoother taste.

### Nylon Mesh Filters

Nylon mesh filters are a more affordable option and are compatible with most coffee makers. They are easy to clean and provide good flavor extraction but may not be as durable as stainless steel or gold mesh filters.

How to Choose the Right Mesh Filter for Your Coffee Maker

When choosing a mesh filter for your coffee maker, there are a few factors to consider:

### Compatibility

Make sure that the mesh filter you choose is compatible with your coffee maker. Some coffee makers may require a specific type or size of mesh filter.

### Material

Consider the material of the mesh filter. Stainless steel and gold mesh filters are more durable and provide better flavor extraction, but they are also more expensive. Nylon mesh filters are more affordable but may not be as durable.

### Size

Choose a mesh filter that fits the size of your coffee maker. Mesh filters come in different sizes, so make sure to choose one that fits your coffee maker properly.

Conclusion

If you're looking to take your coffee game to the next level, consider making the switch to a mesh filter. Mesh filters offer a more complete extraction of the coffee's oils and flavors, resulting in a richer and more robust flavor. They are also more cost-effective and eco-friendly than paper filters. With a variety of mesh filter options available, there's a perfect fit for every coffee lover. So why settle for a weak and flavorless cup of coffee when you can enjoy a rich and delicious brew every time? Make the switch to a mesh filter today and taste the difference for yourself.

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