There is a lot of desire for an amazing cup of coffee, and this desire pays for a LOT of ritual and effort, which is reflected in the kinds of information you can find out there for making coffee well.<p>If you’re okay with “just” a really good cup of coffee and your real desire is consistency with a strong secondary criterion for efficiency, there’s less information out there (probably because this type of person has less desire to make blog posts about their “just” really decent coffee).<p>The process for this efficient, consistent, “just” really good coffee is pretty simple, though.<p>The efficiency and consistency criteria require brewed, not espresso (espresso requires expensive equipment just to get started, and requires relatively high effort for consistency - that’s what you pay a good barista for).<p>The quality criterion requires you to “grind to order”, as ground coffee oxidizes quickly and that tastes bad - buy whole roasted beans that you like the taste of in small airtight bags (whole coffee beans are still slightly perishable).<p>The consistency criterion requires a consistent grind, which means a high quality grinder, specifically the “burr set”. With hand grinders you are paying for just the burr set, while electric grinders you are paying for other things too, so pick a good hand grinder (James Hoffman has extensive reviews of hand grinders and his style is likely very palatable for tech people). This is the only part you should invest in research.<p>The consistency criterion also requires a robust brewing process without too many pitfalls or rituals, which is immersion brewing. A Haribo Switch or any French press is the answer here. You should mis-use the French press, though: do not plunge, just let it steep and settle, then bring the strainer down to just above the liquid and gently pour out most of the liquid.<p>Doing it this way means you don’t have to worry about water temperature, blooming, puck prep, channelling, clogging, or any other of the myriad ways in which a cup of coffee might go awry.