Could anyone with the knowledge post a link to the above style tamper to fit an Evo. Also, if you have any views on whether they add anything to the workflow, or do you have to combine it RDT, WDT, CBT, levellers, stirrers etc

@"dfk41"#p62349 - just because the tamper has a spring in it it does not mean it will distribute the coffee for you, or reduce any static. So yes, regardless of your tamper, you still need to RDT and WDT (if you do that anyway).

So, can I assume that either there are no Evo Leva users with them, or that they are so unimpressed by them they do not wish to share, or have I missed something out!

Prblem is the normecore ones are the wrong size for the evo, they are 53.5mm and the baskets i used in the evo were 54.5-9 i got a normcore with a 58mm and had it turned down, but imo the tamper wobbles, the best one is the bravo tamper, but not cheap

@"dfk41"#p62349 Not sure if I dare ask or want to know.. When I was a lad Cbt was for motorbike training. What has it to do with what seems to be an ever increasing in complexity task that is puck prep . For what it's worth I seem to get great results from a 54 4 tamper. You do have to press it level and guess on a reasonable pressure though 🥴

@"dfk41"#p62394 I have a Tor 54.4 mm tamper, which is great. I also have the Bravo 54.9, which is perfect for the IMS basket. :-)

> @"Adrianmsmith"#p62397 When I was a lad Cbt was for motorbike training. Just my daft sense of humour Adrian……am glad that someone noticed!

Can a bravo be made with a US curve? Or is there someone else that makes a tamper like it with a slight curve?

> @"Loonster"#p62612 Or is there someone else that makes a tamper like it with a slight curve? Torr Tamper or Reg Barber https://www.torrtoys.com/shop https://regbarber.com/

Normacore style tamper for Evo Leva

MediumRoastSteam

LMSC Torr Tamper or Reg Barber

They look like “standard” tampers to me, rather than a Bravo/Normcore/Decent/Force-like tamper (calibrated by a spring).

LMSC

MediumRoastSteam Yes, they don’t do Bravo style. 😊

Torr does 54.4 curve. I have one. Reg Barber does US Curve. Both are manual.

LMSC

There is also a pressure regulated 55 mm convex tampers by Joe Frex

https://joefrex.com/collections/tamper-handles/products/tamper-handle-technic?variant=40196035510366

https://www.espresso-international.co.uk/55-mm-tamper-knock-convex

It might be a very tight fit on the IMS baskets for Evo.

BB does the concept art 55 mm flat. It is worth checking with them.

https://bellabarista.co.uk/products/55mm-concept-art-tamper-base-flat

MediumRoastSteam

LMSC - For the tampers at least, JoeFrex and Concept art are just brand names of the exact same thing. In fact, I owned one of them a while back. They are made very well, and are very sturdy BUT… Unlike the Bravo or the Normcore, Force, etc… it does NOT have a levelling plate which rests on the top of the basket. Therefore, yes, you will be applying the exact same pressure every time, but you will need to make sure your tamping is straight and level - the JoeFrex/ConceptArt tamper will not eliminate that variable for you.

Loonster

In my mind, a slight curve to the face of the tamper will help with with tamping misalignment. With a spherical face, nothing is level anyway, so as long as the center point stays relatively the same, it will have an even tamp even if on an angle. I will draw it up in CAD to see if what I’m thinking is actually true or not.

A self-leveling tamp with a curve should be about as fool proof as possible.

Cuprajake

All a curve tamper will do is give a visually better fill in on the bottom of the basket.

HarveyMushman

I think it’s been said that tamper base makes no difference to the quality of coffee but I do find a curved one reduces edge channeling by pushing the upper bed of coffee out to the edges. A convex base will obviously exert pressure in all directions where a flat one will push straight down.

With decent puck prep it’s probably irrelevant but I definitely get more consistent results with a curved/convex tamper than a flat one.

Caveat being physics class was many many years ago so I might be wrong.

Cuprajake

Been loads of testing done for doughnut shots and it’s been debunked for being bad.

Loonster

Cuprajake Been loads of testing done for doughnut shots and it’s been debunked for being bad.

I would like to see a test done of purposely misaligned puck prep. If there is a 5deg misalignment, which would produce less channeling convex or flat? I suspect the answer may be convex.

HarveyMushman

Interesting. I get really great results with convex, been using it about 18 months and it seems to work well.

Cuprajake

https://pocketsciencecoffee.com/2024/01/07/espresso-water-flow-part-0-workflow/
https://pocketsciencecoffee.com/2024/02/27/espresso-water-flow-part-1-dispersion-puck-screens-and-baskets/

HarveyMushman

Cuprajake

Is that the right study? I can’t see anything about tampers, just baskets/screens and grouphead dispersion.

Cuprajake

its not about tampers, its about doughnut extractions etc, which is what i was saying about the tamper changing the visual look of the shot, you can do it with a flat tamper by making a crater in the puck with wdt and having higher sides

HarveyMushman

Ah ok, 99% of that article is way over my head.

I made a quick diagram about how I imagine convex tamping working. I’m not saying the end result is better, I know it’s not from using both, but I 100% find a convex tamper results in consistently better shots with my lazy workflow - counter tap/distribution tool/tamp - no WDT.

Before the physics guys jump in, I’m absolutely not saying there’s science behind this, just reporting my findings.

Obviously both will fill the basket to the edges, I’m just wondering if a convex tamper creates more of a ‘sealed’ surface for the initial moments water is hitting the puck.

JHCCoffee

I just use a self leveling tamper. I have an EazyTamp. You can get multiple base diameters and thicknesses and base styles for it. Along with numerous handle choices. It is abit of a pricey initial outlay, but then if you change your PTF or basket and need to change the base, you can just order another base. Or if you have two machines that take different size baskets, you can easily swap the bases. Even the spring and the flange size is changeable/swappable.

Uncletits

JHCCoffee me too I have a wooden handle and also now a black one with the different bases too. I usually order when we’re over in Australia.

JHCCoffee

Uncletits I usually order when we’re over in Australia.

Do you have family in Oz? What’s your flight time?

My daughter, grandson and son-in-law are next week moving from Whistler, British Columbia, Canada (a 5 hour flight from Toronto, Ontario, Canada) to Margaret River, Western Australia (near Perth, a 25 hour flight from Toronto). 😕

She met an Aussi lad at the 2010 Winter Olympics and the rest is romantic history. Their lifestyle will change from mountain hiking and skiing to beach camping and surfing.

Uncletits

JHCCoffee we lived there for 9 years and our daughter still does.

24 hours on two flights normally, this time via Hong Kong. This is our third visit in the last 12 months to see our granddaughter and our daughter has MS

MediumRoastSteam

JHCCoffee and the rest is romantic history

The exact reason why I ended up in Great Britain. 🤣🤣🤣🤣🤣🤣🤣.

Elcarajillo

I have a Torr 58.5 Trap which I use with s 58 mm VST. Although you can nutate with it , I do not (not recommended now I believe).. Fill from grinder , straight tamp fingers judging the level on basket rim.
I do often WDT depending on the coffee.

dfk41

Elcarajillo Although you can nutate with it , I do not (not recommended now I believe)

Says who exactly! I still do…..screw the fashion police!

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