sammys wrote:Thank you for your informative post, Peter. I've been running two BES900 machines in a commercial setting for just over three years. Each machine has over 15,000 extractions on the clock. I've almost completed a three-year overhaul of the older of the two machines. It had a temperature instability that has taken a while to diagnose because I didn't want to replace many things in one hit so I can see/learn what effect each replacement has.
There's little chance anyone at Breville will read this. However, a huge thank you to the product development team at Breville for building such a tough machine that outperforms commercial machine extraction quality without needing little tricks like flushing the group etc at a fraction of the cost. I chose these machines because I can set up the grind and coffee/water amounts then my less experienced staff can then extract above average coffees.
The downside... the machine wasn't designed for a commercial workload so there are some parts that struggle to hold up. Parts that can't take the load are the o-rings, the coffee pump, the needle valve for hot water and the ball valve for steam. I've recently switched o-rings to EPDM and it's too early to report whether they will last longer but I'm pretty sure they will. I'd love to get my mitts on commercial quality valves though I have not even begun to look into it. I've almost convinced myself to replace the coffee pumps with Fluid-o-Tech rotary pumps using custom controllers... Almost.
Hopefully someone will get some use out of this information.
We read everything! Thanks for the shout-out to the design & engineering teams that brought this amazing product to market! It's still my preferred machine over everything on the market! It's temperature control & response are second to none, perfect for bench-marking coffees at different temperatures!