by lymzilla on Fri Mar 26, 2010 1:04 pm
Hi ideveloper,
You may have already made your decision, but I'd like to chime in since I was in a similar situation earlier this month (March). I had a 'simple' automatic espresso maker (single boiler, water reservoir, buttons to go from brew temp to steam temp). Not a 'low end' machine, but definitely a base machine none-the-less. Made it last for almost 10 years. Then the machine died...
So I went through all the forums reading everything I could. Was 'wooed' by the many Silvia posts. Had my eyes on an Isomac Venus. Was confused by a machine called 'Tea' (thought it was made for tea brewing at first, but found out it was someone's name [pronounced 'Tayah'] ). Saw so many HX machines I didn't even realize there were any pro-sumer double boiler machines, until I saw the Vibiemme machines.
I have never used any Isomac machine, let alone a Tea II. But, from what I've seen, it's a very capable HX machine with a lot of good features. If I were to going to choose between a Tea II and a Vibiemme Domobar Super HX machine, both as a manual (lever operated brew) machine, it'd be hard to decide (as you well know). I've heard that the Vibiemme is a heavier machine, with lots of steaming power. So that would push me in the direction of the Vibiemme... unless the price difference was persuading me otherwise.
But this is thread is about "Isomac Tea II vs Vibiemme Double Domobar", so I'm assuming you are considering a double-boiler machine and how it must differ from the single+HX machine. Well, now that I've had experience with machines of both types I'd have to say the following:
An HX machine will have an edge over a double boiler machine 'if' the second 'steaming' boiler (on the double boiler machine) runs out of steam too quickly. I have not had this issue with the Vibiemme Double Domobar, and can turn out plenty of froth.
A double boiler machine will have an edge over an HX machine with shorter flushing required (so you don't have to refill your water reservoir as often). But, all-in-all, you can make a great espresso with either machine.
I have the Vibiemme Double Domobar Electronic (programmable buttons, no lever). Makes it a little easier to 'walk away' from a brewing cycle and do other things, but it's a 'nice-to-have' feature, not a 'must have'. Mine also has the PID, and I have to say it's a real 'peace-of-mind' feature. I know what my brew boiler water temperature is, so I can be confident that my grouphead temperature will be fairly consistent.
[EDIT] I forgot to mention one of the most obvious plusses of a double boiler machine - you can turn off the steam boiler independent of the brew boiler. So, if you don't need froth (or hot water), i.e. you are making espresso only - you can leave the steam boiler off. This will save you wasted energy, and reduce the likelihood of the steam boiler going through a reheat cycle during a brew cycle (although, once you know your DB machine, a steam purge on the steam boiler, just before brewing, will avoid this condition).[END EDIT]
That said - no matter which machine you choose I highly recommend Eric's grouphead thermometer mod. With the thermometer in the grouphead you can see what the temperature of the water in the grouphead is doing. It really made it obvious to me when I had the right temperature water moving through the grind. Between that and the brew pressure gauge I've ben able to pull great espressos.
Good luck - whichever machine you decided on. You'll have delicious espresso no matter the choice !