How to build a microcontroller-driven cold brew coffee drip tower

Anyone who has made coldbrew knows how stupidsimple it is.
Drip? Micro-controller? You just soak the stuff and strain it off after 12-24hrs depending on how strong you like it. I could understand a hot drip - but cold has the water in contact with the coffee for so short a time - er…I don’t doubt that it makes a lovely insipid brew and that the beans can be used many times (as they scarcely have time to release their goodness). Tell me I’m wrong …or that my caveman style is too no-tech to be valid. I don’t care.

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