seasterl Senior Member Joined: 5 Nov 2010 Posts: 110 Location: Central Florida Expertise: I like coffee
Espresso: IZZO Duetto II Grinder: Baratza Vario
Posted Sun Jan 8, 2012, 6:31am Subject: Re: Why would I want a commercial lever machine?
How do you do a cooling flush with a lever machine? Also, someone mentioned about overheating or getting too hot- what causes this? Regarding the springs, does this get into a quality control issue of keeping the correct spring pressure over time or wearing them out just like shock absorbers on a car?
Warrior372 Senior Member Joined: 2 Jan 2007 Posts: 265 Location: Chicago Expertise: I live coffee
Espresso: Olympia Cremina, Conti... Grinder: Mazzer Major & Cimbali... Vac Pot: Sunbeam Drip: Trechnivorm Thermoking &... Roaster: Has Garanti 2kg & HotTop
Posted Sun Jan 8, 2012, 10:01am Subject: Re: Why would I want a commercial lever machine?
A cooling flush can be executed on a lever the same way as any other machine, by pulling the lever down and running water through it. I have never had group overheating problems on a commercial lever. In my experience this is more of a problem on the smaller levers such as Elektra MCaLs, Olympia Creminas, Pavonis, etc. Once you see the size difference between a home lever and commercial lever group this will be very clear. The groups on a lot of my commercial levers probably weigh 20-25lbs. Go with whatever you think will be best for you. As long as it is a high quality lever machine it should hold most of it's value, if it is a more rare, highly sought after machine it might go up in value over the span of time in which you own it. Depreciation in machines seems to be seem more in semi-auto and volumetric machines, as there are so many electronic parts to wear, maintain, and replace.
In regard to earlier questions into the Prestina's steaming capabilities, it is like a steam freight train. I believe Richard Penney did espresso catering with his Prestina when he had it. There is no shortage of steaming capability for sure! This would be the case with almost any commercial lever.
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