7 Ways to Filter Your Hops: Crafting the Cleanest, Smoothest Beers Every Time

Fresh hops are a beautiful sight, but after a 60 minute boil they’re a big green pile of gunk. Most homebrewers filter them out for a variety of reasons.

Filtering the hops will clarify your homebrew and cause you less trouble in your fermenter. During a vigorous fermentation, the hops can clog a carboy and plaster themselves to the sides, leaving you a nice mess to clean up.

Also, if you are using an external chiller like a plate chiller, then you don’t want to send hop debris through those small pipes.

Homebrewers have come up with numerous ways to filter hops, and here are 7 of the most common:

1. Mesh Strainer

On our first brew day, many of us frantically grabbed one of these from the kitchen cabinet to catch all the sludge that was pouring into our beer. At least I did. The mesh strainer is the simplest solution to filtering hops and it’s very likely you already own one. They’ll get the job done, but if you are brewing alone it can be a pain to hold the strainer in place and transfer the wort.

They also work better with whole beer hops. Pellets are especially sludgy and will quickly clog the strainer, causing you to run back and forth to the sink to do the ole’ wrist flick.

2. Hop Bag

The hop bag and mesh strainer are the two most common filtering methods. The cheaper hop bags are muslin and the more expensive ones are nylon mesh. Hop bags do a great job of filtering, but the knock against them is decreased hop utilization.

Many homebrewers have found that these bags cut down on the hop character in their beer, so many prefer to let the hops “swim free.” The bags also have an annoying habit of coming open in the boil unless you tie them like a boy scout. The Brew in a Bag movement has taken on a life of its own in the brewing community as well.

3. Hop Filter Bag Using a Paint Strainer

This is a more recent contraption that I discovered from the creative bunch over at HomebrewTalk. The benefit of this device is that it allows the hops to swim free but still does a good job of filtering.

When the boil is over, you simply remove the filter and all the hop gunk is inside. Here’s how to build your own Hop Spider.

4. Chore-Boy Copper Scrubber

Another cheap and simple solution, the copper scrubber works well if you have a pickup tube on your kettles. You can stick one of these puppies on the end of the tube and it will filter out most of the hops.

This device is often used in conjunction with the whirlpool method, where the wort is stirred to collect the hops and other sediment in the middle of the kettle. Then the wort is sucked out from the side of the sediment with the pickup tube (and scrubber).

5. Hop Stopper

The hop stopper has gotten good reviews. The biggest draw back is that it’s expensive, at $60 plus shipping. Unlike the bazooka screen, it will suck up almost every last drop of wort.

This is a great option for filtering, but because of the price it may be better as a DIY project.

6. Bazooka Screen

Although more common in mash tuns, bazooka screens are also used as hop filters in boil kettles. These are notorious for clogging with hop pellets, so if you use one, make sure you use whole leaf hops. MoreBeer has a related product called a kettle screen that’s replaced their bazooka, but apparently the pellet issue is still a problem. They also leave behind wort because they are slightly elevated.

7. False Bottom

A false bottom is a metal perforated disk that allows liquid below but keeps solids on top. So basically, a screen. Like the bazooka screen, false bottoms are common in mash tuns but can also be used for filtering hops. Also like the bazooka, they work best with whole hops.

Personally, I use a combination of the mesh strainer, hops bags, and whirlpool + Chore-Boy.

It really depends on what I’m brewing, what I’m tinkering with, and what I feel like doing at that time. I must say though, I’m looking forward to trying the paint strainer method.

Frequently Asked Questions

How to Filter Homebrew Using Various Methods?

There are several methods to filter hops from homebrew which include using a mesh strainer, hop bag, hop filter bag with a paint strainer, Chore-Boy copper scrubber, hop stopper, bazooka screen, and false bottom.

These methods help to separate the hops from the wort, aiding in clarifying the homebrew and preventing any clogging in the fermenting equipment or chilling systems.

How to Filter Beer After Fermentation Especially Regarding Hop Residue?

After fermentation, filtering can be done through methods like using a mesh strainer or a specialized homebrew filter.

If hop residue is a concern, employing a hop bag or a hop filter bag during the brewing process could help mitigate this issue by containing hops and making the post-fermentation filtering less tedious.

Can You Filter Homebrew Beer to Remove Yeast and Sediment?

Yes, you can filter homebrew beer to remove yeast and sediment. Implementing filtration methods such as using a mesh strainer, hop bag or other specialized homebrew filters like the hop stopper can aid in this process.

It’s advisable to use these filtration methods at various stages of brewing to achieve clearer beer.

How to Whirlpool Hops and What Are Its Benefits in Homebrew Filtering?

Whirlpooling hops involves stirring the wort in a manner that creates a whirlpool, gathering the hops and other sediment in the center of the kettle. This method, often used in conjunction with a Chore-Boy copper scrubber, helps in filtering out hops and sediment.

The whirlpool method aids in achieving a clearer wort by collecting solids in the center, making it easier to draw liquid from the sides without the debris.

How to Filter Beer Before Kegging to Avoid Transferring Sediment?

Before kegging, it’s beneficial to use filtration methods to avoid transferring sediment into the keg. Utilizing a homebrew filter like a hop stopper or a bazooka screen can be effective.

Additionally, employing a mesh strainer or a hop bag during the transfer process can further help in filtering out sediment and achieving a clearer beer before kegging.