Espresso is the one drink where the gear between the beans and the cup genuinely changes the result. That makes it fertile ground for spending, and the ceiling is high: an Acaia Lunar, the scale most espresso bars use, is £320, with UK retailers ranging from about £315 to £335.
The floor is much lower than people assume. Everything below is under forty pounds, all from MHW-3BOMBER, and each piece fixes one specific, identifiable fault rather than promising a vague improvement.
But there is an order to this, and getting it wrong is how people end up with a drawer of tools and the same bad coffee.
Start here: none of this fixes your grinder
If your espresso is inconsistent, the grinder is the most likely cause and by some distance. Grind quality determines how evenly water can pass through the puck, and no accessory compensates for a burr set that cannot produce a consistent particle size.
So the honest sequence is: sort the grinder first, then buy the tools below. Bought in that order they are excellent value. Bought instead of a decent grinder, they are a drawer of metal that changes nothing you can taste.
That is the whole caveat. Everything from here assumes the grind is already reasonable and you want to stop wasting it.
The tools, cheapest first
MHW-3BOMBER 58.5mm Espresso Puck Screen: £13.99
A metal mesh disc that sits on top of the coffee before you lock in the portafilter. It spreads the water arriving from the group head instead of letting it drill into one spot, and it keeps the shower screen far cleaner.
Solves: water hitting the puck unevenly, and a group head that needs scrubbing.
Verdict: The cheapest thing here and the easiest to live with.
MHW-3BOMBER 54mm Dosing Funnel: £19.99
Magnets hold it on the basket while you grind, so the coffee lands where it should. Note the size: 54mm, which is the Sage and Breville fitting, not the 58mm the rest of this list uses.
Solves: grounds on the worktop, and an uneven dose because some of it missed.
Verdict: Unglamorous, and the one you will use every single time.
MHW-3BOMBER 58mm Portafilter Basket, 18g: £19.99
The basket that came with your machine is usually the cheapest part of it. Hole size and spacing decide how evenly the puck drains, and a machine-supplied basket is often the weakest link in an otherwise capable setup.
Solves: uneven extraction that survives everything else you try.
Verdict: The least obvious upgrade here and arguably the most worthwhile.
MHW-3BOMBER 58mm Espresso Distributor: £31.99
Levels the surface of the bed before tamping, at an adjustable depth so it suits your dose. It works the top of the puck rather than through it, which matters for what comes next.
Solves: a sloped or lumpy surface going under the tamper.
Verdict: Buy this or the WDT tool. Buying both is optional and mildly redundant.
MHW-3BOMBER WDT Tool 2.0: £23.99
Fine needles stirred through the grounds to break up the clumps that come off almost every grinder. Clumps are where channelling starts, because water finds the soft path and races through it while the rest of the puck barely gets wet.
Solves: channelling, which is the single most common cause of a sour, thin shot.
Verdict: If you buy one thing from this list, and the grinder is already sorted, make it this.
MHW-3BOMBER Mini Coffee Scale with Timer: £36.99
0.1g resolution and a shot timer, small enough to sit on the drip tray. Weighing what goes in and what comes out is what turns a good shot from an accident into something you can repeat tomorrow.
Solves: not knowing why yesterday's coffee was better.
Verdict: The most useful of the six, and the one with a £320 rival.
Where the money goes
| Tool | Price | Fixes | Premium equivalent |
|---|---|---|---|
| Puck screen | £13.99 | Uneven water arrival | Similar, from around £25 |
| Dosing funnel | £19.99 | Spilled and short doses | Similar, from around £30 |
| 18g basket | £19.99 | Uneven drainage | VST and IMS baskets, around £30 |
| Distributor | £31.99 | Sloped puck surface | Around £60 and up |
| WDT tool | £23.99 | Channelling from clumps | Around £45 and up |
| Scale with timer | £36.99 | Shots you cannot repeat | Acaia Lunar, £320 |
The scale is the only row where the premium option costs many times more. It is also the only row where it is meaningfully different. An Acaia measures flow rate in real time, and none of the cheap scales do. Whether that is worth roughly nine times the price is a question only a fairly serious hobbyist should answer yes to.
Frequently asked
Which one should I buy first? The WDT tool, assuming your grinder is decent. Channelling is the fault that ruins the most shots, and stirring out clumps is the cheapest way to stop it.
Do I need the distributor and the WDT tool? Not really. They both address puck preparation from different angles, and most people settle on one. If you are choosing, the WDT tool addresses the deeper problem.
Will 58mm fit my machine? Check before ordering. 58mm is the common size on prosumer machines, while Sage and Breville home machines are usually 54mm, which is why the dosing funnel above is the 54mm version. Getting this wrong is the most common mistake in this category.
Is a £320 scale really nine times better? No, and nobody sensible claims it is. It is faster to respond, measures flow rate live, and is built for a bar counter being used a hundred times a day. For one or two coffees each morning, 0.1g and a timer is the part that matters.
Will any of this make cheap beans taste good? No. Fresh beans and a decent grinder come first, then these, then the machine. Spending in the wrong order is why people conclude that home espresso is not worth it.
How we priced this
Our own prices are read live from the retailer as this page loads, so they are current rather than whatever they were when this was written.
The Acaia figure is the price listed by a UK speciality retailer on the date above. We give a range across UK sellers rather than one number, because it varies by about twenty pounds. The other premium figures are approximate and deliberately labelled as such, since that end of the market moves and we would rather say "around" than print a precise number that ages badly.
We have not run these tools against each other under controlled conditions, and anyone claiming to have done so at home should be read sceptically. What is stated above is what each tool physically does and which fault it addresses, both of which are checkable, plus what everything costs.
The bottom line
Fix the grinder first. After that, these are the cheapest upgrades in coffee that produce a difference you can actually taste, and the WDT tool is where to start.
The only place the premium market earns its money here is the scale, and even then it earns it from people pulling shots all day rather than two before work. Everything else we track for the kitchen is under Home & Kitchen. If the machine itself is the next question, the air fryer comparison applies the same reasoning to a different worktop.