By Audrey HayesQuick answer
Our overall pick is the Espresso Supply 58mm metal insert, the only metal disc in this roundup with a clearly stated size. The verybarista silicone disc suits three-way valve 58mm owners who use tablets or powder, and the Abeskch two-pack suits Breville 54mm owners. The NentMent four-pack suits anyone with 51mm or 58mm handles.
If you are searching for the best espresso backflush disc, start with two questions: what size is your portafilter, and what kind of valve does your machine use? A backflush disc is a blind insert you place in the portafilter so that cleaning powder or tablets can run through the group head during a cleaning cycle. This roundup compares six Amazon listings, sized from 50mm to 58mm, in silicone, rubber and metal. For the wider routine, see our guide to cleaning espresso machines.
Quick picks
- Metal disc for 58mm machines: Espresso Supply 58mm Metal Insert (see on Amazon)
- Silicone disc for three-way valve machines: verybarista 58mm Blind Silicone Disk (see on Amazon)
- Breville 54mm owners: Abeskch 2-Pack 54mm Breville Disc (see on Amazon)
- Mixed 51mm and 58mm handles: NentMent 4-Pack 50mm and 57mm Discs (see on Amazon)
6 Best Espresso Backflush Discs compared
| # | Product | Best for | Material | Size | Color |
|---|---|---|---|---|---|
| 1 | Espresso Supply 58mm Metal Insert | Best overall | Metal | 58-Milimeter | Silver |
| 2 | verybarista 58mm Blind Silicone Disk | Best silicone option with tablet hold | Food grade silicone | 58.3mm | Blue |
| 3 | Abeskch 2-Pack 54mm Breville Disc | Best for Breville 54mm owners | Food-grade silicone | 54mm | Not listed |
| 4 | NentMent 4-Pack 50mm and 57mm Discs | Best multi-size pack | Food grade silicone | 50mm and 57mm | Black |
| 5 | Espresso Supply Rubber Blind Insert | Best heavy-duty rubber disc | Rubber | 2 inch | Black |
| 6 | Joyzan 50mm Rubber Blind Filter | Best single-size 50mm rubber disc | Rubber | 50mm | Black |
How we chose
We compared manufacturer listings and specifications on Amazon as of November 2026. We did not test these discs hands-on; our picks come from reading what each listing states.
We judged each listing on the portafilter size it states, the material it names, any stated valve type or machine brand compatibility, whether it mentions tablet or powder use, and whether it says the disc has a hole. Where a listing’s figures conflicted with its own title, we left those figures out.
6 Best Espresso Backflush Discs: our picks in detail
1. Best overall: Espresso Supply 58mm Metal Insert
Pros
- Only metal disc in this roundup
- 58-Milimeter size stated
- Silver color listed
- Simple placement instruction listed
Cons
- Listing does not mention a central hole
- Listing does not mention tablet or powder use
- Listing does not name compatible machine brands
This insert from Espresso Supply is listed as metal and in silver, and it is sized at 58-Milimeter. The product features say to place it into the portafilter to backflush the machine, which is the core use of any disc on this list.
Because it is the only metal option in this roundup, it stands apart from the silicone and rubber choices. Its specifications also list a weight of 0.05 pounds. The listing does not mention whether the insert has a central hole, whether it works with cleaning tablets or powder, or which espresso machine brands it fits. Check those details with the seller and your machine’s manual before buying.
Best for: Owners of 58mm machines who want a metal insert in silver, with the size clearly stated.
2. Best silicone option with tablet hold: verybarista 58mm Blind Silicone Disk
Pros
- Food grade silicone listed
- Logo grips tablet or powder, per listing
- Named for many 58mm brands
- Quick backflush without basket change, per listing
Cons
- No hole; listing says it fits only three-way valve machines
- Listing does not mention a warranty
Our pick here is a blue, food-grade silicone disc sized at 58.3mm. The listing says the design allows a quick backflush without changing the basket, and that the logo grips into a tablet or powder so it stays in place through the whole cleaning cycle.
The listing also says the rounded edges are meant to keep water pressure from building too high, and it names a long set of 58mm brands, including Gaggia, Rancilio, Rocket, Lelit, ECM, La Marzocco, Nuova Simonelli, Quickmill, Vibiemme, Wega and San Remo. The disc has no hole, and the listing states it fits only three-way valve machines, so confirm your valve type first. Check your machine’s manual before use.
Best for: Owners of three-way valve 58mm machines who want a silicone disc that holds tablets or powder in place.
3. Best for Breville 54mm owners: Abeskch 2-Pack 54mm Breville Disc
Pros
- Two discs in one pack
- Food-grade silicone, BPA-free, per listing
- Several Breville models named
- Usable with powder and tablets, per listing
Cons
- Sized for 54mm, not a 58mm fit
- Relies on an internal reflux device, so check your manual
This two-pack of food-grade silicone discs is listed for Breville espresso machines, naming models BES870XL, BES878BSS, BES880, BES840XL and BES810BSS, and for other 54mm machines. The listing describes the material as BPA-free and says the discs can be used with cleaning powder and cleaning tablets.
The listing says the disc has no water outlet hole and that a reflux device inside the machine accounts for that. Because the set is sized for 54mm, it suits Breville owners in particular. The title also describes the discs as heat resistant, easy to clean and reusable, and the listing frames the second disc as a backup for ongoing maintenance.
Best for: Breville owners with 54mm machines who want a two-disc silicone pack.
4. Best multi-size pack: NentMent 4-Pack 50mm and 57mm Discs
Pros
- Four discs in two sizes
- Food grade silicone listed
- Named semi-automatic brands
- Black color listed
Cons
- You must match the size to your handle
- Requires matching machine cleaning powder or pills, per listing
This four-piece set includes two 50mm blind filters and two 57mm blind filters, all in black and made of food grade silicone. The listing matches the 50mm discs to a 51mm handle and the 57mm discs to a 58mm handle, so one order covers two handle sizes.
The listing names semi-automatic machines from brands such as Cimbali, Carimali, Conti, Faema, Pavoni, Saeco, Rancilio, SM and Expobar. It describes use at bars, cafes and homes, and advises using the matching machine cleaning powder or pills during backwashing. The listing does not mention whether the discs fit fully automatic machines, so check before buying.
Best for: Owners with 51mm or 58mm handles who want four silicone discs in one set.
5. Best heavy-duty rubber disc: Espresso Supply Rubber Blind Insert
Pros
- Listed as heavy duty for commercial machines
- Designed to fit most standard portafilters
- Two-inch diameter stated
- Black color listed
Cons
- Rubber, not silicone, per listing
- Listing does not name compatible brands
- Listing does not mention a hole
This blind insert is made of rubber and listed in black. The listing says it is designed to fit most standard portafilters and measures two inches in diameter, and it is described as a backflush disk for espresso machines.
The listing calls it heavy duty for commercial machines, which is the main point that sets it apart in this roundup. It does not name compatible machine brands, and it does not say whether the disc has a hole or whether it is intended for use with tablets or powder. Read your machine’s manual before choosing it, and follow the manufacturer’s directions for any cleaning product you use.
Best for: Owners who want a black rubber blind insert that the listing describes for commercial-style use.
6. Best single-size 50mm rubber disc: Joyzan 50mm Rubber Blind Filter
Pros
- Precision cut for 50mm models
- Rubber described as durable and wear-resistant
- Compact and lightweight, per listing
- Black, per title
Cons
- Fit described for 50mm models only
- Listing does not name compatible brands
This black rubber blind insert is described as precision cut to fit models with a 50mm diameter. The listing says it may also work with other espresso machines, but it does not name specific brands or models.
The listing describes the rubber as high quality, durable, stable and wear-resistant, and it presents the disc as a compact, lightweight accessory. Its instructions call for placing the blind piece into the portafilter, adding a spoonful of cleaning powder or a special tablet, and repeating the cycle. Follow your machine’s manual for how often to clean, and confirm the disc suits your portafilter before running any cleaning cycle.
Best for: Owners of 50mm machines who want a single black rubber disc.
How to choose a backflush disc
When you shop for the best espresso backflush disc for your setup, begin with the portafilter. The listings here are sized for specific diameters, including 50mm, 54mm and 58mm, and they are not interchangeable. Check your handle markings and your machine manual, then match the size stated in the listing.
Next, look at valve type and machine brand. The verybarista listing says its disc fits only three-way valve machines, which is a limit worth reading closely. Other listings name brands or say they fit most standard portafilters, while some name nothing at all. If a listing does not mention your brand, check with the seller or your manual before you buy.
Material is the next choice. Most listings here name silicone or rubber, and the Espresso Supply insert is the only one listed as metal. Pick the material that fits what the listing states, and remember that listing descriptions are manufacturer claims, not our test results.
Think about the design too. Some discs are described as blind, with no hole, and the listing says the machine handles the rest. Others are presented as a pack or a multi-size set. Read what each listing says about the hole and the design, and follow your machine’s manual for how a blind disc should be used.
Finally, check cleaning compatibility. Several listings say their disc works with cleaning powder or tablets, and at least one says to use the matching powder or pills for its machine brand. Use only the cleaning product your machine maker recommends, and read its directions. For the broader routine, see our guide to coffee maker maintenance.
What to look for
- A listed size that matches your portafilter diameter
- A stated valve type or named machine brands
- The material named in the listing
- Whether the listing says the disc has a hole
- Whether the listing says it works with tablets or powder
FAQ
What is a backflush disc?
A backflush disc is a blind insert you place in the portafilter so that cleaning powder or tablets can be run through the group head during a cleaning cycle. Several listings in this roundup describe exactly that use. Follow your machine’s manual for the steps.
Does the disc need to match my portafilter size?
Yes. The listings here are sized for specific diameters, including 50mm, 54mm and 58mm. The NentMent set covers two sizes and matches its 50mm discs to a 51mm handle and its 57mm discs to a 58mm handle, so check your handle before ordering.
How often should I backflush my machine?
Follow the schedule in your machine’s manual. Some listings include their own repeat-cycle guidance, but your manual is the reference for how often to clean your espresso machine. For descaling, which is a separate task, see our guide to how to descale a coffee maker and espresso machine safely.
Can I use any cleaning powder with these discs?
Not necessarily. Some listings say to use the cleaning powder or tablets that match your machine’s brand, such as the NentMent listing. Use only products recommended by your machine maker, and read the cleaning product’s directions.
References
- Amazon product listings and manufacturer specifications (accessed November 2026)
About Audrey Hayes
Audrey Hayes is part of our editorial team and reviews and edits our coffee machines guides, checking product details against manufacturer specifications and owner feedback.
