Trying a $12 WDT from Amazon: is it even worth considering?

I can't stop being amazed by Amazon's weird and questionable coffee gears, especially when it seems to be more expensive than the "people's solution" but much cheaper than "real products". This video is not certainly the first time looking at one of them, and I can assure you it's not the last. This time, it's a cheap WDT tool, a staple tool in my espresso workflow. Will it work? Does it have any tricks up its sleeve? Keep watching!
At Entek Coffee I have been looking at affordable alternatives for your home barista adventures, and with the horde of cheap coffee gears from online stores these days, we shall take a look at a cheap WDT, a very important tool in the espresso making workflow, that only set me back 12 USD.
Do you have any questions, tips, or ideas about what I should try next? What cheap gears should I try next? Let us know in the comments section below!
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[@emteehed]

so like Soil Physics... Introducing Perlite to the soil helps to AERATE the soil and keep the soil itself from clumping together too tightly causing water distribution issues (channeling). Did you think of adding much coarser grounds to the finely ground coffee? some type of percentage ratio coarse to fine ratio. Instead of needling your coffee puck? Just a thought... throwing out to the ether of the internet.

[@minalputra9918]

Pake peniti wae cukup lah

[@EntekCoffee]

So tau bro.

[@emteehed]

and YES... i still think you lot ADDING NEEDLES to a KITCHEN is INANE... Knives and Forks are MORE THAN ENOUGH Danger Close tools in Home Kitchens... A Simple Purpose Built/Designed WHISK for COFFEE MAKING would be 300% BETTER than NEEDLES.

[@EntekCoffee]

Oh, you're actually giving an interesting thought. I guess if someone can mass produce a whisk with 0.3 mm thick metal (or polymer!) wires for cheap, it'd be 300% profit for you! Show us a prototype, I'll help you kickstart the project. I'm sure others will follow suit!
As for introducing coarsely ground coffee, I don't think that'd work. In soils, the goal is to get the water to descent as evenly as possible. In coffee, that's just one of the goal, but it isn't the main one. The main goal is to get an even extraction, and I reckon for your suggestion to work, you'd need a lot of coarsely ground coffee to the point that it messes up the extraction.

[@emteehed]

@@EntekCoffee I guess you don't understand pressure... The compacted PUCK will cause a certain level of back pressure in the machine UNTIL IT BREAKS and causes the so called 'channeling' through the puck. This isn't unlike very high velocity wind tunnels. Super sonic wind tunnels. Pressure differentials so high it breaks a metal plate between the differing pressures. That metal plate is the coffee puck. Espresso machines use high pressures to force the water through the puck. What you're after is good drainage through the puck while maintaining that high pressure and not allowing the the water to only channel through certain areas of the coffee puck.

[@emteehed]

@@EntekCoffee The reason why good drainage in soils is important is to allow the roots to spread. Where the water is the roots will follow. The roots will only go where the water flows.

[@EntekCoffee]

@@emteehed To be honest, excuse my comprehension, but I don't know what objection you're trying to make, is there anything that I said that is against that? Can you explain again?

[@emteehed]

@@EntekCoffee It's a flow rate issue through the puck. If you have a pressure gauge, the pressure indirectly relates to the flow rate through the puck. The higher the pressure the machine is able to reach, the slower the water is passing through the coffee. Which relates to the extraction levels. Through conservation of energy. the Pressure is Potential Energy. The flow rate through the coffee puck is Kinetic energy. You can determine a rate of extraction. What you're after with the needles product is EVEN EXTRACTION through the puck. EVEN EXTRACTION equates to DRAINAGE CAPABILITIES. Channeling equates to UNEVEN EXTRACTION. Are you following?