New heating element for steam boiler of 2011+ VBM Double Boiler. Includes gasket. Retail $77.63 Selling for $50 + actual shipping (buyer can choose method). {image} {image}

OEM VBM Portafilter - single spout included. Essentially new. I used it a few times playing around with multiple baskets when I first bought the machine but then it was just stored. $40 + actual shipping (buyer choice on shipping method) {image} {image} {image} {image}

Selling my set of wood turned by cannonfodder from my old VBM DD3. It's hard to capture how gorgeous they are - the three photos on the machine are when I had a nice DSLR so they look truer to the ones on the towel that were just taken on my phone. The figuring is just stunning and desert ironwood

I still do not believe that any significant amount of CO2 is produced after roasting, only released from the bean structure based on everything I've read. The only thing I can really find that would oxidize releasing CO2 in the presence of air would be the VOCs in the Furan class which is the larges...

Roasting in the winter. It really sucks standing in the freezing windy cold in the dark at the edge of the garage. Luckily it was a fairly mild winter but man is that not fun

Keep in mind that those holes may not be channeling holes during extraction. Are you seeing blonding around the edges of the basket when you are pulling a shot? When you end the shot you violently release pressure backwards so I've never found any real use in looking at post pull puck for diagnosis ...

A lot of what I would have said has already been said but you have a blend of beans that are cooping with a processing center (different regions are listed) or a blend from different smaller processing centers to produce enough volume for wholesale so you are not going to get a homogenous mix of bea...

So the CO2 is actually produced during the roast from Strecker degradation, pyrolysis of sugars, and the Maillard reaction.... there may be others but I can't recall. It then is basically trapped in the structure of the bean and slowly finds its way out of the bean structure as it is under higher th...

It sounds like you've tried a bunch of stuff and have been at it for a while. The one thing it sounds like you haven't tried to change is the coffee. Perhaps switching to a different brand and giving that a try to see if there is a change. Second, potential grinder issue. Rock through it without you

I think you're going to have an extremely difficult time with that one. You would have to find someone who has the mold and is willing to custom mix a batch of silicone for a one off. My only though would be looking into the additive prototype space - you can 3D print silicone so if you had an