A false bottom creates a screened space between the grain and the outlet, helping wort drain while keeping most grain in the mash tun or brew kettle. The right choice depends on more than diameter: check the vessel’s inside dimensions, the shape of the bottom, and whether the fitting matches your drain setup. Below, we compare five options, including flat and domed designs, so you can narrow down the best fit for your brewing setup.
| Product | Size | Key details | Availability |
|---|---|---|---|
| Krome AG405 Stainless Steel False Bottom | 12 inches | Perforated stainless steel; also offered in 10 inches | Available |
| Northern Brewer Titan False Bottom | 17 inches | Flanged rim, 3/8-inch barbed elbow and pickup tube | Available |
| LXYLYX Domed False Bottom Kit | 12 inches | 304 stainless steel; 3/8-inch barb fitting | Available |
| Krome C389 Domed False Bottom | 15 inches | 304 perforated stainless steel; 3/8-inch barb fitting | Unavailable |
| Home Brew Ohio False Bottom | 11.5 inches | Made for specified 42- and 60-quart brew pots | Unavailable |
Our Picks: Best False Bottom For Brew Kettle reviews
1. Krome AG405: A Simple 12-Inch Perforated Option
The Krome AG405 is a perforated stainless steel false bottom designed to turn a brew pot into a mash tun. Its 12-inch size makes it a candidate for kettles and pots with a matching interior diameter, and the product is also offered in a 10-inch size.
A flat perforated plate is a straightforward design: it creates a barrier between the grain and the bottom of the vessel while allowing wort to pass through. That simplicity can be appealing if you want a basic conversion for all-grain brewing. The key is to confirm the pot’s inside diameter and how the plate will sit above its drain or outlet; the listed details do not specify an included pickup tube or fitting.
Compared with the domed choices below, this model has a flatter profile. That may suit a pot where a low-profile insert is preferred, but the listing does not provide a clearance or dead-space measurement. It is a more limited fit choice than the 17-inch Titan, which includes a pickup tube and elbow.
Pros:
- Perforated stainless steel construction
- 12-inch size, with a 10-inch option also listed
- Designed to convert a brew pot for all-grain mashing
Cons:
- Requires careful diameter matching before purchase
- Listing does not specify an included pickup tube or outlet fitting
Verdict: Choose the Krome AG405 if your pot measures for a 12-inch insert and you want a basic perforated false bottom without a domed design.
2. Northern Brewer Titan: A Large False Bottom with Pickup Hardware
The 17-inch Titan is the largest option in this roundup. It has a flanged rim intended to help keep the bottom in place, plus a 3/8-inch barbed elbow and pickup tube for drawing wort from beneath the screen.
Its included pickup hardware is a practical distinction from the simpler Krome AG405, whose listing does not specify an outlet assembly. Northern Brewer also says the design cuts the dead space of traditional domed false bottoms in half. That can matter when you want to limit the volume left beneath the screen, though the listing does not give an exact dead-space measurement.
The larger diameter makes fit especially important: measure the inside of your vessel where the false bottom will sit, not just the outside width. The product is described as tested against intense grain bills and kettle hop additions, but a false bottom still needs to work with your particular vessel and drainage arrangement.
Pros:
- Large 17-inch diameter
- Flanged rim helps it stay positioned
- Includes a 3/8-inch barbed elbow and pickup tube
- Designed to reduce dead space compared with traditional domed bottoms
Cons:
- Too large for many smaller pots and kettles
- Requires a compatible vessel and drain setup
Verdict: The Titan is the most complete choice here for a compatible large vessel, especially if you want the pickup tube and elbow included.
3. LXYLYX: A 12-Inch Domed Bottom for a Round Vessel
This domed false bottom is listed as 12 inches across and made from 304 stainless steel. Its raised shape keeps the screen from sitting directly on the vessel floor, and the listing says that space is intended to help wort flow beneath it. A 3/8-inch barb fitting is included.
The product is described as suitable for an insulated 10-gallon round beverage container or another vessel with an opening of at least 12 inches. That opening measurement is not a substitute for checking the inside diameter at the bottom, where the false bottom must fit. Confirm both the vessel shape and the outlet position before choosing it.
Compared with the flat AG405, the dome provides more clearance under the screen but may take up more vertical space. Compared with the Titan, it has a smaller listed diameter and a barb fitting, but the product details do not mention a pickup tube. It is best suited to brewers who want a domed design and have a compatible drain arrangement.
Pros:
- 304 stainless steel construction
- Domed profile creates space beneath the screen
- Includes a 3/8-inch barb fitting
- Specified for round beverage containers with a suitable opening
Cons:
- Vessel dimensions and outlet placement must match
- Listing does not specify an included pickup tube
Verdict: Consider this LXYLYX model if you need a 12-inch domed false bottom and your vessel matches its size and fitting requirements.
4. Krome C389: A 15-Inch Stainless Steel Dome for Large Vessels
The Krome C389 is a 15-inch domed false bottom made from perforated 304-grade stainless steel. Its listed hardware includes a center hole with a preinstalled 3/8-inch barb fitting, and the product information specifies standard NPT fittings.
This size is aimed at large mash tuns and brew kettles. The diameter makes it unsuitable for smaller vessels, so measure the interior where the insert will rest before considering it. The center opening and fitting details also make outlet compatibility worth checking against your existing setup.
The C389 combines a domed profile with a specified stainless material and fitting, while the 12-inch LXYLYX is the smaller domed option in this list. One important limitation is that this product is currently listed as unavailable. If you need a false bottom now, the available Titan or LXYLYX options may be more practical, depending on your vessel size.
Pros:
- Perforated 304-grade stainless steel
- 15-inch size for larger vessels
- Domed design and preinstalled 3/8-inch barb fitting
- Listing specifies standard NPT fittings
Cons:
- Currently listed as unavailable
- Too large for many homebrew pots
Verdict: This is a promising specification match for a large vessel with compatible fittings, but its current unavailability makes it a less practical pick.
5. Home Brew Ohio: A Close-Fitting 11.5-Inch Insert for Specific Brew Pots
This 11.5-inch false bottom is listed for 42- and 60-quart brew pots, including an 8-gallon pot. The product description says it fits snugly against the walls and can be used when mashing grains or boiling wort.
That close fit is useful only if your pot matches the specified dimensions; a small difference in vessel shape can affect how the insert sits. The listing does not provide a material specification, fitting details, or a pickup tube description, so check those points if your setup requires a specific drain connection.
Its size falls between the 12-inch options and the 17-inch Titan, but the pot-specific fit information matters more than the small difference in diameter. This model is currently listed as unavailable, so it may not be an option for an immediate purchase.
Pros:
- Specified for 42- and 60-quart brew pots
- 11.5-inch size intended to fit snugly against the pot walls
- Listed for mashing grains or boiling wort
Cons:
- Currently listed as unavailable
- Listing does not specify material or outlet hardware
Verdict: This model may suit the exact brew pots named in its listing, but its unavailable status and limited fitting details make it a conditional choice.
How to Choose a False Bottom for Your Brew Kettle
Measure the Inside Diameter at the Bottom
Start by measuring the inside of your vessel where the false bottom will sit. A kettle’s stated capacity or opening size does not guarantee that an insert will fit at its base. Check for tapered walls, rounded edges, and any fittings that could interfere with the rim. Match your measurement to the product’s listed diameter, and allow for the way the specific design is meant to rest in the vessel.
Choose a Flat or Domed Shape
A flat plate offers a low-profile design, while a dome creates space between the screen and the vessel floor. That space can provide a path for wort to reach the outlet. A domed insert may also take up more vertical room, so consider the depth of your vessel and where its drain sits. Neither shape is automatically right for every kettle; the vessel and outlet layout should guide your choice.
Check the Outlet and Fitting
False bottoms need to work with the way you drain your vessel. Compare the listed fitting size and style with your kettle’s outlet, hose, or existing hardware. Some models specify a barb fitting, and the Titan lists a pickup tube as well. If the product details do not mention a pickup tube or connector, do not assume one is included.
Consider Dead Space
Dead space is the liquid left beneath the false bottom that may not drain through the outlet. The Titan’s listing says its design cuts dead space compared with traditional domed false bottoms, but it does not provide an exact volume. If minimizing trapped wort is important, look for a product with clear design details and confirm how its height and pickup arrangement will work in your vessel.
Match the Material to Your Needs
Several options here specify stainless steel, including the 304 stainless models. The Home Brew Ohio listing does not state its material, so you may need to confirm that detail before choosing it. Also check how the product is made and whether its fittings are compatible with the rest of your brewing equipment.
Check Availability and Included Parts
Availability can change, and two products in this comparison are currently listed as unavailable. Before deciding, verify that the item can be ordered and review the product listing for exactly what is included. A fitting or pickup tube can save a separate setup step, but only if its size and style suit your vessel.
Frequently Asked Questions
What does a false bottom do in a brew kettle?
A false bottom creates a screened space above the vessel floor. During draining, wort can pass through the screen while the insert helps hold back grain. It is important to pair it with a compatible outlet and vessel.
How do I know what size false bottom to buy?
Measure the interior diameter where the false bottom will sit. Check whether the vessel narrows or curves near the bottom, and compare your measurement with the product’s stated diameter and fit guidance.
Is a domed false bottom better than a flat one?
Not for every setup. A dome creates space beneath the screen, while a flat insert has a lower profile. Consider the vessel’s floor, outlet location, and available depth before choosing a shape.
Do all false bottoms include a pickup tube?
No. The Titan listing specifies a pickup tube and 3/8-inch barbed elbow. Other listings here mention fittings but do not specify a pickup tube, so check the included parts before ordering.
Can I use a false bottom in any brew kettle?
No. The diameter, shape, and drain connection must suit the vessel. A false bottom that is too small, too large, or poorly matched to the outlet may not sit or drain as intended.
Which option is best for a large brew vessel?
The Northern Brewer Titan has the largest listed diameter at 17 inches and includes a pickup tube and elbow. Measure your vessel first; a large false bottom is only useful if it fits correctly and works with your drain setup.
Final Recommendation
For a large vessel with compatible drainage hardware, the Northern Brewer Titan is the most complete option in this group because its listing includes a pickup tube and elbow. For a smaller setup, the 12-inch Krome AG405 offers a simpler perforated design, while the LXYLYX provides a domed alternative with a specified barb fitting. Measure your vessel and confirm the outlet connection before choosing; fit matters more than the product’s nominal size alone.