About the filter in the grain brewing

I have a problem with hop filtering,
 
I want to buy a hop filter, but I heard that if you use this, it will reduce the utilization of hops.

Will there be this problem?

Do you use filter cartridges when brewing beer?

There is another question.
Metal filter basket (https://www.zhehanfilter.com/filter-basket/) or bags?
Anyone knows it?

Many here use both or one of these. I think the rule-of-thumb is to add 10% more hops to reach your goal.

I simply use a muslin bag.  I get them from my local home brew supply store.  I tie up the open end using butchers twine.  I have a plate cooler so I have to keep the boil as clean and debris-free as possible.  That said, I do not add more than 1 ounce per bag, I dangle the bag (like a tea bag) to keep it suspended and I have never noticed any issues.  I have had as many as six muslin bags dangling in my kettle, but it works!  I suppose my utilization does suffer a bit, but I live with it.

Muslin bag is an effective, inexpensive alternative.

I use 5gal paint strainer bags hung from my homemade hop spider. 
Cheap and available in any hardware store.  They provide a large amount of space for hop movement too.

My current ones have lasted for years and only get replaced when they get so stained I, irrationally, believe they aren’t really clean.

Paul

Are you whirlpooling? With an effective whirlpool and a side pickup in the kettle I’ve never personally needed to use anything to filter out hops. I do use all pellets though.

10%, thank you, I will try

I also have a lot of friends who use it. I think I need to try a few more ways.

I use a large grain bag bag that I bought from my LHBS to capture the hop debris, although some manages to get through as the bag is somewhat porous.  I also have an inline screen before my plate chiller to capture the rest of the debris that a pro brewer friend gave me (I do not whirlpool since I have a false bottom in my kettle and draw from the center.  Side note:  I used to just rely on the inline screen to capture all of  the hops that made it out of the kettle but ended up plugging it, hence the grain bag.  I do not add extra hops since the bag is large enough to allow them to swell in the wort without being constricted by a small volume bag.  I used to use only whole hop cones which formed a n ice filter bed on my false bottom, but they are getting harder to find

Another alternative is to purchase a BIAB and use that to hold the hops.  They are available to fit many different kettles and have a relatively fine mesh  I have one of those as well that fits in my converted keg boil kettle (i.e. keggle) and will probably start using it in the next brew.  You can put the opening over the top of your kettle and can easily throw in the hops.  It will allow expansion when the pellets break up.  Plus, they are relatively inexpensive.

Final note:  I don’t put Whirlfoc or yeast nutrient in the bag.  I add them directly to the kettle outside of the bag so that they can be more effective.

Same here

Of course, another option is to just not worry about it.

I’ve used the muslin bags with pellets and still get a lot of hop debris in the kettle. I don’t know if it is because I occasionally hit it or somehow squeeze it while stirring the boiling wort.  I still get good beer though.

I’m using muslin bags and stainless mesh containers. Both solutions work fine, just increase the weight of the hop a little bit.

Relax, have a homebrew?

+1 on the hop debris and good beer.  It just doesn’t matter unless it’s plugging a plate chiller or other equipment.

+1