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| We figured out how to heat water thousands of years ago

Then why doesn't this device heat the water

With all due respect, you have to figure this out since not many people are going to pay $700 for half of what a $100 device can do. Honest advice not a critique. It must be hard not to read the negativity from some comments but this is already a great job that you had done! You just need to continue building on it IMHO.

Yeah but having the water hit the grounds at the right temperature is what separates a great machine from an average machine. Yours doesn't do that. Congratz on everything you've done so far but I am your target customer and won't consider a machine that doesn't also manage the water temperature.

Yeah dude until I saw that it needs an external apparatus, I was quite interested.