@[email protected] cold brew stays fresh and good for days, I’d say a week at least, I guess you would probably need to worry about the safety factor before the flavour. However in the summer I usually make 1 liter and it get consumed in 4/5 days, but I think it can last more. Of course you need to keep the jar well sealed.
Note that after little time a thin white film starts forming on the surface. That’s totally normal and you shouldn’t worry about it, it is not mold (as it should need much more time to form) but some water and coffee minerals and residuals concentrating on top. It’s not aesthetically appealing but it’s totally safe.

@[email protected] If I stick to the Porlex the tall could be my next step. The Mini is handy until you need to brew two cups or a liter of cold brew 🙃

@[email protected] Actually I literally just did it after tasting a V60 coffee in a local cafe. I got a 150g bag of the same coffee (a really good Colombian) and I managed to obtain a cup almost as good as the one they served me, even if I’m using a stovetop kettle without termometer.
However my main doubt is about the setting of the grinder, mainly because I can calculate how many steps it needs to obtain a theorically correct size of the ground, however I mostly end up looking for instructions online and finding the right setting by trying

@[email protected] tbh we shouldn’t expect the adoption curve of any Fediverse software to be somewhat similar to the ones of centralised social networks, since Fediverse completely misses the commercial aspect that encourage key users to stay in the platform easing communities to stick to it as well. My guess is that without the action of commercial dynamics, the situation wouldn’t be so different from the jumps-and-losses moments we’re used to