No worries, a week old in a not overly active community means nothing ;-)
I've yet to overextract a cold brew, though I guess it's possible. What you could do to try is getting those small tea eggs (you know, those egg-shaped metal thingies meant to infuse water with tea) and break down the coffee to water ratio onto single cup volume. That way if you overextract at last you don't waste a whole carafe.
You could even run an experiment with 5 cups or so and sample them in 4h intervals until you reach your personal sweet spot.
Oh and it also makes a difference whether you're extracting at room temperature or in the fridge. Some people here commented 12h @room, others 20h in the fridge, so that might also apply to your recipe.
I do mine in the fridge, so it seems that 20h is the way to go.
I love the tea egg suggestion! I'll definitely try this tonight!
I drown my failed attempts in milk and chocolate syrup, it never occured to me to make smaller batches 🤦
Thank you so much and will update with the results tomorrow.
Total noob as in you drink coffee but have no real preference, or you already know your likes & dislikes and want to get into making your own, or what exactly are you aiming for?
I like blonde roasts, occasionally a mocha. Right now I make my own coffee using a reusable filter in a keurig. What would be the first step to upgrade? Aeropress? Espresso?