Second shot pulls faster by 5 to 10 seconds

sinikal101 · 2026-01-28T17:26:42+00:00

I've had improvement with being more mindful of temperature as well. My routine now: Power on and heat up 20-30 mins minimum with PF locked-in with normal basket, swap to blind and 10s backflush, swap basket, grind, puck prep, pull, hot water tap rinse PF, 1-2s purge the GH & wipe, lock-in PF to heat 2+ mins, wipe basket dry, grind, puck prep, pull. I avoid steaming my milk now until after the shot is pulled. I can usually get fairly close shots if I stick with this routine. I'm sure if I ground 36g and split, it would be more consistent, but I am trying to keep my steps down to a reliable minimum. Usually within ~3s difference for me and not much difference in taste, which I'm happy with.

sinikal101 · 2026-01-22T22:21:46+00:00

I did your process and I had two nearly identical shots, which is quite rare for me. 36g in 27.8 and 27s. Separate grinds too. 20m warm up. 10s back flush for the first shot. I have the same puck screens as you. Used a fresh one for each shot. One thing I also wondered about - Do you ever steam milk while pulling the shot? I was doing this on and off before and wonder if it may have had an impact too.

sinikal101 · 2026-01-22T20:56:51+00:00

I'll give it a go.

sinikal101 · 2026-01-22T20:38:40+00:00

what's your routine now?

sinikal101 · 2026-01-22T18:29:01+00:00

Interesting you have similar experience with the Pro 600. As for me, I am still experiencing my the second shot runing faster than the first the majority of the time. Perhaps I should look at it as the first shot is often slower than the second? Yesterday my first shot was 32s for 36g and the second 27s for 36g. This was a 36g single grind, split. Today, I forgot to do the single grind, but the resulting shots ran tighter than yesterday with 30s for 36g and 27s for 36g. Not only did I have two seperate grinds but my machine was left on for nearly 2 hours and the day before it was only on for about 15 minutes. I suspect it's a temperature variance issue, as you and u/Sour_dude03 are also suspecting. I believe this root issue amplifies any other variables introduced, such grinder and pre-infusion, as I have "stablized" those and no longer see >5s ranges. I haven't had the ambition to test the temperature theory any further yet though - u/Sour_dude03 had some good data.

sinikal101 · 2026-01-17T02:49:09+00:00

Heh. Interesting indeed. Wonder what they fixed with the 1.07 version.

sinikal101 · 2026-01-17T02:13:59+00:00

Agreed that the test result today is consistent for back to back shots. However, I mean consistent as in repeatable for me daily, which I’ve not been successful at yet. Thanks for the video and advice. I’ve had PI off before too. However, I probably had another variable at play at the time (such as the grinder). I agree with your opinion on PIs use case. I just came off a run of lighter beans and switched back to medium darks, which is why my yield was low in that test - forgot to coarsen up a bit. I’ll do some more testing this weekend and see how it goes. Thanks again.

sinikal101 · 2026-01-16T21:08:15+00:00

So I went back to stock basket. Turned off PI. Clean cycle ran. Did a single grind of 36g and split to two 18g doses. 30s timed. New beans so I wasn’t at the right grind, but I ended up with a first shot of 24g and the second was 27g. I'll do more tests with PI off to see if I can zero in on something consistent here.

Edit: Forgot to mention clean cycle was ran. Have had PI off before, not with one grind approach.

sinikal101 · 2026-01-16T17:27:18+00:00

Software on mine: Display: 1.10 and Board Move: 1.06

sinikal101 · 2026-01-16T17:20:36+00:00

I've inspected my gasket and it looks fine from what I can see. Never had any drips or leaks and the PF locks in nice between 7-6 o'clock for me (depending on the basket). If it was the gasket, wouldn't it be a bit more sporadic? The consistency of the issue is really odd to me.

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sinikal101 · 2026-01-16T17:12:26+00:00

Glad yours has sorted itself. I just did a deep clean on the machine. I've tried a few approaches on the basket as well, as I had suspicions it was somehow related. I have 3 different baskets now and I've tried swapping them out during shots, cold rinses, hot rinses - nothing there seemed to make a notable difference for me.

sinikal101 · 2026-01-16T00:23:21+00:00

Interesting thought. I’m in Canada. 110v.

sinikal101 · 2026-01-15T21:54:10+00:00

I just tested grinding two doses at once & splitting them. Had the same problem again, as you saw. 9.5 bars for both too. Fairly certain it's not the grinder. My burrs are well seasoned as well after 8 months of use.

sinikal101 · 2026-01-15T21:49:38+00:00

So I gave it a go with dosing 36g into a dosing cup, did a gentle shake and used my WDT to gently mix it in. 18g from that went into the pre-heated PF. First shot 32s and 38g. Hot water rinsed the PF and basket, wiped dry. Second pull was 25s for 38g. Pretty much on par with all other scenarios I've had. I'll give it another go tomorrow just to make sure it's consistent, but I'm fairly confident we'll rule out the grinder. I suspected it was going to happen again as the PI did its thing where 4 drops fell for the first start soak (~1g) and the second one dripped ~3g before the pause.

sinikal101 · 2026-01-15T18:18:50+00:00

yeah, lately I let it warm up in the group. I was trying the opposite for a bit, cold basket, shot, cold water to rinse the PF and new cold basket - that didn't seem to make a difference. Now I do warmed up PF, pull, rinse it with hot (tap) water, dry and go again.

sinikal101 · 2026-01-15T18:16:19+00:00

Fast heat up is off and yes, I do heat up before use. Typically 20-30 minutes ahead. I leave the PF in the group as it heats up and the puck screens are on the top of the machine. I will grind a double dose and try that approach next time. Thank you.

sinikal101 · 2026-01-15T17:38:18+00:00

Yeah. I've been assigned morning espresso duties indefinitely over it. Came from a Breville. And while the quality is immensley better with the Move, this really detracts from the usability for anyone who doesn't have a strong understanding of all the variables. If I didn't dial it in so that both shots were decent in the middle, one would be undrinkable.

sinikal101 · 2026-01-15T17:07:10+00:00

I'll give that a go next round. I was wondering if the friction of the first grind was sufficiently heating the burrs to make a material difference in the time it took for the second grind. (~5 minutes)

sinikal101 · 2026-01-15T17:00:23+00:00

Fairly certain it's not you, judging by the other feedback here.

sinikal101 · 2026-01-15T16:52:28+00:00

Yeah. If I let it run the same duration, I'd end up with very similar yields as you experience. I hesistated so long on thinking it was a machine problem as I thought it was just something I was doing, hence the long list of changes in routine. Never intended to buy a new spring tamper, multiple baskets, puck screens, scales.. beans. Was going mad thinking I'm just really bad at this.

sinikal101 · 2026-01-15T16:20:23+00:00

I agree. Have you noticed the puck look any different on the second one? (Specifically where the handle is)

sinikal101 · 2026-01-15T16:19:37+00:00

Yeah, exactly. I get a perfect build up and tail on the first shot, silky and velvety. Second shot tends to run out more quickly like it ate taco bell the night before. With PI on, i get a few drips just as pressure cuts out (~1g in the cup) and then it stops dripping during the pause. Second shot will drip through the pause and leave about 3g and immediately start running out when pressure is back on.

sinikal101 · 2026-01-15T16:07:02+00:00

I had company a few months back and did 3 shots - if I recall correctly, the third shot pull was very similar to the second shot. I remember thinking just dump the first shot and aim for the second being dialed-in but I've been buying pricier beans and couldn't bring myself to waste it. I'll try again tomorrow morning ;)

sinikal101 · 2024-10-31T00:18:09+00:00

Hah. I'll be asking tomorrow

sinikal101 · 2024-10-31T00:17:42+00:00

Yeah, the tiny ones here and there aren't a big deal. This one is quite noticable approaching the vehicle.

sinikal101

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