by JmanEspresso on Tue Oct 13, 2009 7:31 pm
I think, personally, if you're going to be making espresso for two people regularly, and also want to use the machine to pull a couple shots in a row, say maybe for a dinner party, the Office Lever might be a better match. IMHO.
That said, given a proper grinder and fresh artisan roasted beans, both machines have the potential for great espresso. The shots pulled on the LP(or any lever machine), will be much different then shots pulled on a pump driven E-61. Neither better, nor worse. If you're after oodles of crema and super-thick syrupy shots, the OfficeLever would probably be a better machine. The lever machines, in general, produces shots with a slightly lighter body, maybe less crema, and a different flavor profile. Like I said, neither of these machines are bad at all, and BOTH can make some excellent espresso.
AFAIK, the ExpoBar Office Lever has a Vaccum Breaker, as well as Auto-fill Circuitry, and a Hi-Limit thermostat. So, yes, you should be able to leave it on 24/7, if you wish. Some people leave their machine on 24/7/365, like me, and others use an Appliance timer and program the machine to turn on/turn off at certain times during the day. The LP has no need to be left on all the time at all. From turning on the power, to the machine being ready to pull shots, the LP will be quicker. The Expobar needs, at a minimum, 45 minutes. Most people using a timer give it an hour. You can speed this up a bit by flushing water through the group once the boiler is heated.* IDK how long the LP takes, but it isn't an hour.
As for the Rocky...
Is it a bad grinder? No, far from it. But for the money, you can do better. A main downfall of the Rocky, is that is has a stepped adjustment, meaning there are defined settings where you can set the grind. What you want, ideally, is a stepless grinder. No setting, just a wheel/knob/collar which your turn one direction or another, to move the burrs closer/further apart, which tightens/coarsens the grind. This is ideal for espresso so you can best dial in your shot, for your given situation. So, while the Rocky does a good job, for the money, there is better. Now, if the Rocky were like, $250, might be a bit of a different story.
You might look at grinders like the:
Lelit PL53
Ascaso I-1 & I-1/D
Cunill Tranquilo
-or, for a bit more money-
The Compak K3 touch
Baratza Vario
-There is also the option of a used Mazzer Grinder. This is a popular way to get a great grinder at a good price.
You want to get the absolute BEST grinder you can. Its the most important part of the kit. Of the list of grinder above, the Baratza Vario would be the best bet, but they're all capable. Maybe you move a little money from the machine fund, to the grinder fund. You would be hard pressed to have "too much grinder", as Im not sure such a thing exists.
*Unless Im missing something about the Expobar, machines of that size and class usually need a minimum of 30 minutes, without any flushing, to be ready. 45-60 would be best. Its not just the boiler that needs to be hot, but EVERYTHING in the machine, including the PF need to be hot.