Category: Coffee

Cold Brew Redux

lpaulriddle

I made some cold brew at dinnertime today, with the same recipe I’ve been using for most of the summer, and decided to measure the quantity of water used so that I can double the recipe more easily and accurately. Here’s the latest recipe. Note that a “scoop” refers to the scoop that comes with the AeroPress.

  1. Set AeroPress up in inverted orientation and add 1 heaping scoop of drip-grind coffee
  2. Add 200 to 220 grams room-temperature water (enough to fill AeroPress to about 1cm of the top)
  3. Stir vigorously for 1 minute
  4. Flip and press into a glass tumbler (30 seconds)
  5. Add 2-3 ice cubes and a few drops of stevia to taste
  6. Stir and serve

Doubled recipe:

  1. Set AeroPress up in inverted orientation and add 2 heaping scoops of drip-grind coffee
  2. Fill AeroPress with room-temperature water to 1cm from top and note how much was added by weight
  3. Stir vigorously for 1 minute
  4. Flip and press into a tall glass, small pitcher, or carafe
  5. Top up to a total of 400-440 grams of water
  6. Add several drops of stevia to taste
  7. Stir, pour into tumblers, add ice, and serve

I’m still using Wellsley Farms Breakfast Blend pre-ground coffee to make this, but I’m almost out of it. Once it’s gone, I’ll try it with some Maxwell House Original Roast that we have in the cabinet.

Morning Notes

lpaulriddle

After alluding to it yesterday, I brewed a cup of pourover coffee this morning using this recipe, with the same beans and a slightly finer grind. I went back and forth over whether to try it coarser or finer, eventually settling on finer just because of how my earlier pourover cups have tasted. I used a setting of 18 on the JX grind chart, which is two rotations minus 6 clicks (54 total clicks). I think this was the right call. The cup had a little bit more fruitiness than the cup I brewed with the AeroPress, with more body to balance out the fruity acidity than my previous pourover cups. Now I’m wondering how fine I can go before it starts to taste bitter.

The weather was quite pleasant this morning, and the past several days have been dry, so I hit the trails and commuted to work through PVSP on my mountain bike. It was my third bike ride in 4 days. On the HoCo side of the river, I rode Belmont Trail to Morning Choice to Lewis and Clark to Garrett’s Pass, which is a route I take frequently. It was a great ride, except something stung me on my arm at one point. I am wondering if maybe I ran over an underground hornet’s nest, and one of them got me. If that’s the case, I’m glad I was moving fast (and I’m not allergic)!! We’re still in heavy summer growth season, but with a few exceptions, the trails I rode were not overgrown. Upper Soapstone Trail, which is on my route home, may be another story, so I’ll see how that is doing later this afternoon.

Pourover vs AeroPress

lpaulriddle

I’ve brewed the same light roast coffee beans with the same pourover method four times now, and the results have been fairly consistent — good cups that could probably be a little bit better. Today, for comparison, I went back to my AeroPress, using a recipe I had tried once before with these beans. Other than the brewing method, the main differences were that I used a slightly coarser grind with the AeroPress (2.5 turns on the JX vs 2 for pourover) and also a little bit higher ratio (1:14 vs 1:16.67). Both cups seemed good strength-wise. The AeroPress cup was stronger, but the pourovers weren’t thin or weak tasting. They did have more of a noticeable fruity/acidic taste than the AeroPress cup. I think, overall, the AeroPress cup was a little bit better, but I’m curious to see what happens if I try the pour-over with a different grind size. I’m just not sure whether to try it coarser or finer.

Pourover

lpaulriddle

I needed to shift gears after using up the last of my dark roast beans this morning, so this afternoon, I decided to finally try making pourover coffee.

  • Beans: Local Coffee Roasting Co. (Roxana, DE) Breakfast Blend (Guatemala/Colombia) light roast
  • 15g coffee / 250g water (1:16.67)
  • JX: 2 rotations or 20 on the grind chart (medium — a little finer than what the chart shows as a pourover grind) Note — better a little bit finer at grind setting 18 (2 rotations minus 6 clicks)
  • Water at boil (100°C)
  • Recipe: A Better 1 Cup V60 Technique (see below)
  1. 0:00: Pour 50g of water to bloom
  2. 0:10 – 0:15: Gently Swirl
  3. 0:45 – 1:00: Pour up to 100g total (40% total weight)
  4. 1:10 – 1:20: Pour up to 150g total (60% total weight)
  5. 1:30 – 1:40: Pour up to 200g total (80% total weight)
  6. 1:50 – 2:00: Pour up to 250g total (100% total weight)
  7. 2:00 – 2:05: Gently swirl
  8. Drawdown should finish around 3:00

This went pretty much according to the script, except I maybe waited a little too long before the first swirl, and I completely forgot the second swirl. I will try to improve my swirling technique next time. To preheat my ceramic V60, I went downstairs to the workshop and found a rubber Fernco cap that was just barely large enough to fit around the flange on the bottom of the V60. I took the metal clamp off the cap, put the cap on the V60, filled the V60 up with water from my insta-hot tap, and let it sit while the brew water was coming to a boil. It worked great, and the V60 was nice and hot when it came time to use it.

I have to remember to let the cup cool for a little longer when brewing with boiling water, as I got a little impatient and burned my tongue. 😮 Other than that, I was pretty happy with how this turned out, especially for my first time doing pourover. The flavor and strength both seemed good. I’ll probably brew it exactly the same way next time. I’m curious to see how a coarser or finer grind affects the taste, so I may play around with that a little bit eventually. I hadn’t brewed these beans in about a month, so I’m also curious to try this AeroPress recipe again and see how it compares to the pourover.

1:10

lpaulriddle

I’m getting to the end of the bag of dark roast coffee beans that I bought in Shepherdstown this past May. I have been using this recipe with them for the past week or so, and it produces a consistently good cup, but maybe just a tiny bit weak at 1:13 (which I find interesting, because the original recipe has a ratio of 1:16.5). Just as an experiment, I decided to brew it with 20 grams of coffee to 200 grams of water, or 1:10. I used around 58-60g water for the initial pour-and-swirl. The result was very bold and very good… probably the best cup I’ve brewed with the beans. I have enough left to make one last cup at this strength, but now I’m wishing I had more!

This experience begs the question of why I need to use so much coffee to get the taste I like, when almost every recipe I see uses less coffee per volume of water. It could be because the coffee is maybe a little past its shelf life. It could also be a dark roast phenomenon. I remember reading or seeing somewhere (I suspect it was a James Hoffmann video) that there’s less “good stuff” to extract from dark-roasted beans, so you have to grind them more coarsely and brew at lower temperatures to avoid extracting “bad stuff”, but this can result in a weak-tasting cup at low ratios. The recommendation was to use more coffee for a bolder taste, and that certainly mirrors my experience. However, there are a lot of “dark roast” specific AeroPress recipes floating around that use fine grinds and rather low ratios of coffee to water. I’ve tried a few of them, and they all taste weak to me, so I’m wondering what I’m missing. Maybe I just like bolder-tasting cups than most people? Who knows. In any case, I’m going to keep brewing dark-roasted beans like this until someone tells me what I’m doing wrong. 😀

Morning Update

lpaulriddle

Not a pleasant morning at all here in central Maryland, so I opted to run in the pool. More storms later today in this already extremely stormy and wet summer. How long until autumn again? 😀 I’ve written before about how the benefits of owning a pool don’t quite make up for the expense and hassle required to maintain it, but I will say that it’s great to have the pool as an exercise option on days when I don’t feel like doing anything else outdoors. If the storms hold off long enough, I also hope to get out to swim later this afternoon.

I’ve settled on this recipe for what remains of my bag of dark roast beans I bought last May:

  • Beans: Lost Dog “Mocha Sidamo” Ethiopian dark roast
  • JX: 2.5 turns (75 total clicks, or 25 on the grind chart)
  • 80°C water
  • 14 grams coffee / 180 grams water (around 1:13)
  • One new paper filter (pre-moistened)
  • Recipe: “Basikairoo” (inverted: add 50g water, swirl aggressively for a few seconds, top up to 180g starting at 1:00, invert at 2:15, press for 30s starting at ~3:00)

This is only slightly tweaked from when I first brewed this recipe. It produces a good cup fairly consistently, with only slight variations in strength. I wonder if the length of time spent “swirling” makes any difference in the finished product. The recipe specifies 3 seconds, but I haven’t been timing it.

Afternoon Report

lpaulriddle

The “AC Loss” issue with our new alarm panel seems to be resolved, at least for now. After reprogramming the last few zones in the system, I unplugged the system and let it run on battery for several minutes. Then, I swapped out the old Ademco 4300 X-10 transformer, replacing it with the transformer that came with the new panel. When I plugged it back in, the AC Loss condition cleared up. I have a hard time believing that the transformer was the issue. I read the panel voltage across terminals 1 and 2 with both transformers, and it was exactly the same — about 16.7 volts AC. Maybe the panel was just in a confused state, and needed an actual AC power loss and recovery to “reset” itself. However, the problem did persist through several power cycles (although I’m not sure I ran the panel on battery at any point). The only way to find out for sure would be to swap the old transformer back in, and see if the problem returns. However, since it’s working now, I’m inclined to leave it alone.

I decided to try doubling my cold brew recipe this afternoon. I put 2 slightly heaping scoops of Wellsley Farms breakfast blend into the (inverted) AeroPress, added room temperature filtered water up to near the top, stirred for 1 minute, and pressed. Then, I split the concentrated coffee equally into two tumblers, topped them up to roughly 8 ounces, and added ice and a couple drops of stevia to each glass. The extra coffee made it a little bit harder to press, but it turned out just fine. I couldn’t tell any difference from my single cup recipe. The next time I do this, I may measure the total amount of water per glass more carefully, then press into a carafe or pitcher instead of directly into a tumbler.

This and that

lpaulriddle

I had hoped to take a bike ride this morning, but ended up sleeping until almost 9:00. It was probably just as well, as it’s very hot and humid today, and would have been a rather sweaty ride. The reason for my oversleeping was that we got a call around midnight from our alarm monitoring company because of a “trouble” condition. Turns out that the newer Vista panels have “trouble” reporting enabled by default, while the older ones didn’t, and I didn’t think to turn it off when I programmed the new panel. Earlier in the evening, I had popped the cover off one of the wireless contacts to check the battery, which caused the zone to go into “trouble”. I’m not sure why the alarm company called at the time they did, but it does confirm that reporting is working! The panel is still showing “AC Loss” this morning, in spite of the power being just fine. When I get to messing with it again, I’ll try unplugging it, running it on battery for a few minutes, and plugging it back in, to see if it resets. If not, I may try swapping out the transformer, and if none of that works, I’ll contact the alarm company.

The pool SWG is still reading an abnormally high temperature today. At least it’s consistent. When I get to messing with that, I’ll try re-seating the tri-sensor cable and see if it corrects itself. I may also pull the tri-sensor itself out of the manifold and take a look at it. If none of that works, I’ll test it with the tri-sensor simulator to narrow down the source of the problem, and contact my Autopilot dealer to see what he recommends. This is a rather easy issue to work around, either by calibrating the temperature reading down, lowering the Chlorine output, or turning off the setting that automatically adjusts the output based on the water temperature. Assuming I can’t fix this easily, I’m inclined to ride it out for the rest of this season, and buy any needed replacement parts over the winter.

I brewed yesterday’s dark roast coffee recipe again today, exactly the same way, except I used 180g of water instead of 200g. Truth be told, I didn’t notice much of a difference from yesterday. It was a pleasant cup of dark roast. I have enough beans to make 7 or 8 more cups, and I’m probably just going to be boring and stick with this recipe until they’re gone.

5am Darkness

lpaulriddle

Woke up early today, and for a change, I got moving instead of lounging around in bed on the computer. I decided to try a different AeroPress recipe this morning.

  • Beans: Lost Dog “Mocha Sidamo” Ethiopian dark roast
  • JX: 2.5 turns (75 total clicks, or 25 on the grind chart)
  • 80°C water
  • 13 grams coffee / 200 grams water (1:15.4)
  • One new paper filter (pre-moistened)
  • Recipe: “Basikairoo” (inverted: add 50g water, swirl aggressively for 3s, top up to 200g starting at 1:00, invert at 2:15, press for 30s starting at ~3:00)

I have no idea how this recipe got its name or what it means. My only deviation from the recipe was that I slightly overshot the initial 50g of water, and ended up with 55g (which probably made no difference) and I used slightly less total water than the 210g that is called for.

This made a pretty good cup! 80°C is the lowest temperature I’ve brewed with to date (other than cold brew). The nice thing about the AeroPress is that it brews more quickly than the French press, so the water doesn’t lose as much heat. When I brewed single cups with these beans in the French press at 85°, they were never quite warm enough. This cup was at a good drinking temperature right after pressing. It seemed well extracted, with no bitter or sour flavors. It was neither too weak nor too strong. I may try it with slightly less water (180g) to see if I get a bolder tasting cup, but it’s perfectly fine as-is.

La Esparanza

lpaulriddle

I used up the last of my Lost Dog medium/medium-dark blend beans today, and they have left me with more questions than answers. I thought I had them dialed in with this recipe, but I brewed it twice today identically to yesterday (scaled up slightly for the second cup because I had 17g of coffee left), and both cups turned out bitter. The taste was very similar to the cups I brewed a few days ago when I skipped the bloom phase. The most consistent thing about brewing these beans was the inconsistent cups I got with seemingly-identical recipes. One day, it would be the best coffee I ever tasted in my life; the next day, it would be weak; and the next, it would be bitter. I have no idea why, but the beans are gone now, so I guess I’ll never know. All I can do is move on to the next bag I want to use up, which is my “Mocha Sidamo” dark roast. By my estimate, I have enough of that for 8-10 cups, depending on how strong I make it. I’m thinking about starting with around a 1:10 ratio with a rather coarse grind and a brewing temperature of 85-90 Celsius. I’ll also try making some cold brew with them. These are single-origin beans, so I’m curious if I’ll get more consistent results with them. However, they are about 3 months old, so I’m a little concerned that they might not be so fresh any more. I’ll find out tomorrow.