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question regarding cold brew
(lemmy.world)
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this post was submitted on 23 Jul 2023
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I make my cold brew in a plastic and glass contraption that produces a drip onto a reservoir into a bed of grounds that has a metal filter on the bottom. I can't say I have ever noticed a metallic taste to the coffee. I put an aeropress filter on top of the grounds to help the moisture distribute. I suppose you could do the same at the bottom to avoid direct contact between the grounds and the metal in the filter, if it was a concern that some kind of reaction might take place (that wouldn't otherwise take place in the presence of ~0C water + dissolvables).
I do a very primitive method - I stir coarse grinder beans into the water and let it rest in the fridge for roughly about 12hrs, then filter it with a coarse cotton filter and then with a permanent dripping filter.
The result is great, but the effort is high.
Maybe I just let it rest in the French press and compare the result.
I bought some large paper bags on Amazon that work like tea bags. It takes longer (I usually let it sit for 2-4 days) but the effort is extremely low. And you never need to use any metal :)
That'll work. I will have to try that myself to see whether immersion vs percolation in cold brew makes a difference.