drumhead954 wrote:I realize that all the contributing parameters in espresso making do make a difference, but can someone with taste comparison experience with these two types of machines (or similar) quantify the leap with a modern home/commercial machine over my workhorse commercial, if there indeed, is one?
Much thanks!
I think it boils down more to the operator running the machine, than the machine itself. I've seen many, many people pull horrible shots (not even worth drinking) from machines that cost over $10K. By the same token, I can pull very nice shots using my $200 La Pavoni at home.
In a commercial environment, repeatability and consistency is very important. As well as not having to worry about temp surfing so much, etc.
Frankly, in my experience, - when both machines are dial in and the operator knows his/her stuff - then I do not really see a huge difference between a good quality home machine and a multi thousand dollar E61 machine. For a long time (prior to actually using an E61 machine), I thought there would be a big jump up in quality from a more expensive machine. However, really, at the end of the day, it's just something pushing hot water through a compacted puck of coffee. In fact, I think an argument can be made that the lever machines allow you to vary the pressure profile, whereas the commercial pump machines are basically just an on/off situation, which takes the operator out of the loop.
I just haven't seen a lot of difference in shots. I think the difference between a good quality home machine and a full blown commercial machine is actually so little that any inexperienced barista can quickly make the shots coming out of your super expensive commercial machine taste far worse than the shots coming out of your good quality home / prosumer machine. Like I say, I have seen plenty of people pull absolutely horrendous shots on very pricey machines (simply because they have no clue what they are doing).
In fact, just a few months ago, I stopped by an espresso cart in Oceanside - and had the worst shot of my life. It was like a small Americano and tasted horrible. The cart owner was allowing his wife to pull shots and she had no clue what she was doing. The shot must have been close to 4 oz and was burnt to all get out.
In most cases, I think the good shots are a product of people who know and love espresso and who are always chasing after the perfect shot - regardless of what equipment they have. Someone who really knows how to extract espresso can make even a low cost/quality machine stand up and sing, if you give them a decent grinder and some fresh beans.
If it were me (and I was going to be turning out shots of espresso in a commercial / retail setting), I think I would probably get a couple thousand dollar Rocket (maybe a heat exchanger machine) and simply learn how to pull the best shots I could off it. Unless you are turning out 100 shots an hour or something, I would think that would be plenty.
Buy good beans also. There's a big difference in beans. The best machine / technique in the world can't help the wrong/bad beans and/or beans which just are not well suited for espresso.
Same goes for learning to steam/froth milk. Sit down and steam a bunch of milk to different temperatures and taste it. You'll be surprised what a difference 10 degrees can have on the sweetness of your milk. And stick to whole milk - it has the most sugar in it, which is what you are generally trying to release by steaming.
Anyway, that's my 2 cents on the subject.
Ray