Channel
@coffeeadastra
On this record: Growth · Engagement · Posts · Handles named that no longer answer · Cite this entry
1,380subscribers
+1 since we began measuring on 7 August 2026
Risers and fallers across the register · movement among entries of 1,000–3,162.
| Telegram ID | -1001433525725 |
|---|---|
| Type | Channel |
| Username | @coffeeadastra |
| Created | Between 1 April 2019 and 13 July 2021— estimated from Telegram’s id allocation, not measured. How this range is calculated. |
| First recorded | 7 August 2026 |
| Last confirmed live | 28 August 2026 |
| Measurements held | 6 |
| Confirmed unchanged | 1 time, most recently 28 August 2026 |
| On Telegram | t.me/coffeeadastra |
| Measured (UTC) | Subscribers | Change |
|---|---|---|
| 28 Aug 2026, 03:35 | 1,380 | -1 |
| 25 Aug 2026, 04:44 | 1,381 | +1 |
| 15 Aug 2026, 01:06 | 1,380 | +2 |
| 11 Aug 2026, 07:57 | 1,378 | -1 |
| 7 Aug 2026, 22:18 | 1,379 | no change |
| 7 Aug 2026, 20:37 | 1,379 | first reading |
14 posts held, back to 13 July 2021 — the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 1 pageof Telegram’s post history, 20 posts per page.
Nothing published in the last 30 days. ERR and ER are rolling 30-day measures, so there is nothing to compute — we hold 14 posts for this entry, the most recent from 31 December 2025. An engagement rate over an empty window would be a number about nothing.
I have just publicly released a new blog post on the importance of bed depth: https://coffeeadastra.com/2025/11/28/the-pulsar-mini-and-the-importance-of-bed-depth/ In that post, I discuss some of my recent understandings on how to brew filter coffee with deeper beds, in particular which brew variables should be modified and which ones should not be. I think this will be useful for those learning to brew filter coff…
My new book The Physics of Espresso is available on Scott Rao's webstore ! It ships to almost every country (from the US or Germany, depending on where you live): https://www.scottrao.com/products/poe If you would like to place a bulk order, send an email to [email protected] for discounted bulk prices
I just shared a new blog post on my Patreon page (link in bio) describing the impact of bloom time when using the NextLevel Pulsar and what I think might explain our observations ! As usual, the blog post will become public in a few weeks on coffeeadastra.com ! https://www.patreon.com/posts/what-pulsar-me-88913789
I just published a blog post on my Patreon going deep into the analysis of 300 particle size distributions for 24 espresso grinders, with a number of observations that they allowed me to make. This was super informative to me and I hope it also is to all of you ! This post will become public at coffeeadastra relatively soon when I wrote another blog post (I have one coming up about Pulsar and SCA expo !) Huge thank…
I just published a new blog post on my Patreon (https://www.patreon.com/posts/particle-size-69259074) about particle size distributions, with a discussion of how burr spacing, rpm, burr geometry affects them, and how to characterize different styles of particle size distributions. This is one of my most data heavy posts so far, thanks a ton to Weber Workshops for sharing their data. If you are not subscribed to my P…
My latest post about the mechanism behind astringency is on Patreon, and will become public in about 2 weeks ! https://www.patreon.com/posts/69258415
Please help Regalia get back on their feet after a fire 😢 https://www.gofundme.com/f/regalia-coffee-fire-relief-fund?utm_campaign=m_pd+share-sheet&utm_medium=copy_link_all&utm_source=customer
I'm excited to announce I will give a 3-hours live class on the Physics of Coffee during the 2022 Specialty Coffee Expo in Boston ! I will discuss my most up-to-date understanding of the physics in play in both espresso and filter coffee, and what this means for the best methods to brew coffee repeatably and achieve your desired goals. This class will include some brand new data and conclusions, new questions and pr…
I have recently stumbled on @quantitativecafe (https://instagram.com/quantitativecafe and https://quantitativecafe.com), a new coffee blog written by Michael Cooper that presents and carefully interprets amazing data from various coffee experiments focused on espresso but also useful for filter coffee. I know good data collection when I see it, and this is a case of great data collection. I was so excited when I foun…
I would highly recommend you follow @samosmrke if you are interested in learning more about coffee. Samo is a legit coffee scientist and consistently produces some of the highest-quality coffee-related papers I have read. Lately, he also started posting some distilled and easy to read compilations about the current status of scientific coffee knowledge on his Instagram profile, and I find them delightful. I keep lea…
I just released my last Patreon-only blogpost for full public access here: https://coffeeadastra.com/2021/10/23/restraining-flow-to-mitigate-channels/ In that post, I discuss how a device from Del Creatives shows potential to open new doors in the way we make filter coffee with espresso machines, and how I recently came to appreciate how a source of resistance below a coffee bed can be beneficial to reduce the impa…
My next upcoming blog post is already available for my Patreon supporters here ! https://www.patreon.com/posts/56017748 In this post, I describe some new understanding that I recently reached about the value of adding a source of hydraulic resistance below a coffee bed, and how a new upcoming device by Del Creatives makes clever use of this to transform espresso machines into single-serve filter brewers that can rea…
Showing the 12 most recent of 14 posts we hold for @coffeeadastra. View and reaction counts are the latest single reading for each post, not a live figure, and a recent post is still accumulating both. A view count marked ≈ was rounded by Telegram before we ever saw it — t.me prints views in full below 1,000 and to three significant figures above, so ≈1,200,000 means somewhere between 1,150,000 and 1,249,999. Unmarked counts are exact. Text is reproduced from the public post preview and truncated for length.
@coffeeadastra named 2 handles that resolve to nothing today. That is a fact about the reference, not necessarily a fact about the handle’s history — see the two groups below.
Most of these may never have existed as a live channel at all.A handle a channel names can be a typo, an aspirational name nobody registered, or a channel that was already gone before this one ever mentioned it. Unless a row below is marked evidenced, all we know is that it references a handle that is not a live channel today — not that anything “died”. How this is measured.
References a handle that is not a live channel — we have no record it ever was one.
A live page changes as we take new readings, so a citation should name the measurement it is based on, not just the URL. The line below cites the subscriber count as measured 28 August 2026 — this entry's latest reading, not the date you are reading this.
“Coffee Ad Astra” (@coffeeadastra), 1,380 subscribers as measured 28 August 2026. Telegram Register, tgregister.com/channel/coffeeadastra.
Full measurement history, CC BY 4.0. Every reading this register holds for this entry, not just the latest one, as a dated, downloadable record: CSV · JSON. Free to use with attribution to tgregister.com. Each file carries its own generation timestamp, which is the figure to cite for exactly when the data was retrieved.