January 19, 2011
Coava Coffee generously sent me a Kone to review back in November, but because I was overseas as well as holidays, moving and starting another semester I am just now getting around to reviewing the product.
I’ve been doing a modified, but fairly basic, pour-over method with the Kone in the Chemex. 25-28g (higher than my normal 24g), 100ml bloom poured in the center over a 45 second period, left to rest for 15 seconds, then a slow pour right down the middle of the remaining 300ml in 90 seconds, then a drain for 30 seconds, which allows for a 3 minute overall brew time. This is all done with a grind coarser than espresso, yet finer than one would normally do for drip.
I have seen some overly sooty brews others have made (online and in person) as well that I have made, and almost always the issue is a method too close to a normal Chemex. If you take the Kone to a sink and pour water through it you will see very easily that there is a radically small amount of resistance in redirecting water through the brewing bed, and that water exits the sides, not the bottom of the filter. This means that pouring only in center actually is the best way to redirect the water through the bed, whereas in normal Chemex or V60 brewing bed architecture, the coffee is mostly flowing out of the bottom inch or so of the filter, meaning you want to incorporate the sides of the bed thoroughly as the water drains through the center bottom.
As well, because of this lack of resistance, I have found that coarse normal chemex grinds only work when you are aiming to overdose the coffee and have a weak, sooty, and underextracted brew. The finer than is common sense grind necessary is just that, necessary. For some sort of reference point, I’m currently using Macro setting 9 on my Baratza Preciso, with the micro dial set halfway to the right.
My only real complaints with the product are the flimsiness of the filter, It has already taken a bit of a beating from being used by some barista’s at the shop. While I doubt these dents substantially effect the brewing bed, it is a bit disappointing from a product that is higher in price point than around 750 regular paper chemex filters.
The Kone is another great tool to add to my arsenal, and although I do reach for it often, i’m more impressed with the DISK filter for the aeropress as far as the tastiness of cups i’ve been getting, which I will post a review of in the coming days..
p.s. I didn’t get to experience the great packaging that everyone else did because my brother was overly anxious to play with it..