While it’s true therapy can help, most couples wait an average six years before signing up. By

9 min readDec 9, 2020

After developing and studying the Staccato shot, I determined fines don’t clog the filter basket. In the Staccato espresso method, the bottom layer is a fine layer (<400um), and the shots still flow in regular times. If the fines really did clog the filter holes, it would not be possible for this shot to work.

During the test I did not observe chalk moving deeper into the puck. When the water went into the tube, the chalk kicked up in the water, and even as pressure was applied, the chalk seemed less affected. This might be due to the surface area for fines is so small that pressure forces have less to work with.

Figuring out that you have an aversion to healthy relationships isn’t a death sentence. If anything, it’s the first step towards changing your dating patterns so you can experience a great relationship.
But young professionals, with money to burn without too deep investments in any platform, may increasingly turn to Apple in the future, beefing up their hold on the premium market and consequently their share of the total profit in the PC market.
I set out to investigate fines migration using a transparent portafilter as well as post-shot puck analysis. To understand how fines would move in the water, I used chalk on the top of the puck. If fines really did migrate during the shot, chalk would as well because the particles were very fine. However, I did not observe any migration, and potentially found the reason behind the lack of migration

Then I needed a substance as fine as fines in coffee that would not dissolve but would be able to be easy to see after the shot. I first tried flour, but flour gums together in hot water. So then I found some chalk, and I used a knife to scrap off some which quickly turned into a fine powder. I put this on the top of the coffee.

The fine layer has other interesting attributes like flowing very quickly for the first drop or two, but then the layer solidifies. Coffee then flows slowly and then more quickly as more coffee is extracted.

The main actor to move the water is pressure, which causes flow, but flow can only push a particle relative to the surface area. So I’m suspecting that fine migration can happen in methods where the coffee bed is moving around and not compact, but during espresso, it seems difficult to prove.

I thought the best tool to understand this issue would be a transparent filter basket. While a few have been made, they typically are offset causing them to have a unusually large amount of headspace between the top of the puck and shower screen. Usually, this space is kept to the depth of a nickel, but in the transparent portafilters previously made, this space was the thickness of the filter.

Socratic Coffee did an experiment where they sifted coffee, and they looked at shots where with two layers to understand if having more fines at the bottom caused flow or extraction. They did not find any significant difference suggesting if fines do migrate, they don’t have a big impact on the shot.There has been this idea that during an espresso shot, the finer particles (<200 um), also called fines, migrate to the bottom of the filter and either block the filter (causing channeling) or coming out in the cup (ruining the taste). This concept drives people to be more careful in their puck preparation for fear that too much agitation will cause the fines to accumulate at the bottom and make this problem worse.Barista Hustle did an experiment focused on fines migration during puck preparation by tapping the filter basket 100 times with the notion that the finer particles should drift to the bottom. However, they did not find it had an effect on shot time, which indicating that either fines didn’t migrate or their migration didn’t cause an issue.

As far as I remember from performance benchmarks the newest AMD CPU cores, the ones called Zen3 are slightly faster than Firestorm cores. But here is the kicker, that only happens because the Zen3 cores are clocked at 5 GHz. Firestorm cores are clocked at 3.2 GHz. The Zen3 is just barely squeezing past Firestorm despite having almost 60% higher clock frequency.

So why doesn’t Apple increase the clock frequency too? Because higher clock frequency makes the chips hotter. That is one of Apple’s key selling points. Their computers — unlike Intel and AMD offerings — barely need cooling.

It doesn’t mean game over. They can of course simply clock up more, use more cooling, throw in more cores, beef up the CPU caches, etc. But they are both at a disadvantage. Intel is in the worst situation, as their cores are already soundly beaten by Firestorm, and they have weak GPUs to integrate with an SoC solution.

In essence, one could say Firestorm cores really are superior to Zen3 cores. Zen3 only manages to stay in the game by drawing a lot more current and getting a lot hotter. Something Apple simply chooses not to do.

Some work has been done to show that agitation causes an effect that reduces shot time, and the authors believe this is caused by dry migration. However, not much work has done to specifically understand fine migration in the puck.

But fortunately for AMD and Intel, Apple doesn’t sell their chips on the market. So PC users will simply have to put up with whatever they are offering. PC users may jump ship, but that is a slow process. You don’t leave immediately a platform you are heavily invested in.

But young professionals, with money to burn without too deep investments in any platform, may increasingly turn to Apple in the future, beefing up their hold on the premium market and consequently their share of the total profit in the PC market.

While it’s true therapy can help, most couples wait an average six years before signing up. By

Written by Mohon KalaPro