ACAIA Lunar Digital Scale

Excellent scale, accurate, fast , and best of all great for pulling shots as it rates automatically , weighs , and gives you the flow rate which is super helpful to understanding your extraction.

Best uprade of my espresso set up.
Getting a lot of data from my espresso shot is so helpfull to understand whats going on.

It’s a highly accurate, compact scale at a premium price. I love it. The flow meter is really useful and I love that it is small enough to fit into a modified drip tray. Recommend.

I've only had the scale a few weeks now so I can't speak to longevity but so far the Lunar 2021 has been very nice to use daily. Making only espresso, I stick to the one mode (manual start/top timer and weighing) which works reasonably well though I don't always hit the touch screen's star/stop button when I think I do (thank goodness for the audible beep for both start and stop). Coming from a Brewista 1 for 3 years prior, I really appreciate how the Lunar's display never suddenly stalls for no good reason and the timer button doesn't randomly double-press by itself and clear the timer when attempting to stop it (this was the main reason I decided to upgrade). Its low profile makes it easy to fit a variety of cups under the grouphead.

The scale's menu navigation is a little quirky at first and the options aren't self-explanatory so you definitely need the manual beside you as the app doesn't have access to all of the scale's options of which there are many. By default the weighing precision is 0.1 which can be increased to 0.01. Also, the flow rate bar at the top of the display can be adjusted to enable brighter dots at larger intervals and dimmer dots in between which makes it easier to gauge at a glance. Beeping can be disabled (I don't suggest it), weight units grams or ounces, the end-of-extraction summary's self-clearing time can be disabled if you want more time to record your data before manually clearing the timer and weight independently: this summary also includes the average flow rate which is nice. You can also disable each of the 7 modes and only keep the most frequently used ones active so it's faster to cycle through, which are represented by a combination of square, triangle and droplet symbols that I don't find too intuitive. There's also a new/hidden 7th mode specifically for pourover with the latest firmware updates.

There's a 100g calibration weight included and 2 pair of adhesive strips for the base (1 grippy and 1 smooth), USB-C cable (the other end is still rectangular), instruction manual and heat pad which I find hard to keep clean of dust and grinds.

Connecting to the app on my iPhone was quick and easy as expected. The app also allows manual timer start/stop as well as taring. The response time for the timer had no noticable delay, but I mostly don't use it since it's just faster and easier to use the scale by itself.

For areas of improvement, waterproofing isn't as good as the Brewista as I can see the electronics from the gap between the weighing pan and base, definitely take care to wipe surfaces dry before placing the Lunar on them and be mindful of the drip tray splashing up from blasting the steam wand. The battery level indicator uses the dots at the top when powering down but when going through the menus it shows the numbers too, oddly inconsistent and I wish they'd show the digits all the time.

So far I'm very happy with the 2021 Lunar.

A very responsive scale! Makes espresso making easier to handle compared to using cheaper scales that break every couple of months!

I honestly think this scale was too pricy for what it is (i.e. to measure stuff) and was more willing to invest in the Fellow scale. However, I knew I would want to go down the espresso rabbit hole eventually and I do not regret my purchase one bit. It really is suited for a more workplace/commercial environment but using at home has been perfect. It's easy to clean and has a lot of different modes that help with both pour over and espresso. The one thing I simply can't get over is how tiny it is but how responsive and long the battery has been! Coming from two cheap 20 dollar scales from amazon, using the lunar everyday just makes me more and more happy that I bought this scale!

Great scale for espresso