another_jim wrote:Here's the point. Most people who actually drink straight espresso continue and will continue to buy preground Italian espresso, Bustello, nespresso capsules, etc, until they can get something better in an espresso from SCAA roasters without paying $400 for a decent grinder.
The relatively high cost of a quality grinder
is an obstacle for many who might want to make high quality espresso at home with artisan-roasted whole beans sourced locally or via mail-order. This segment of the potential market for artisan-roasted whole beans might spend a few hundred dollars for a machine but they won't spend $400+ for a grinder. A basic grinder that is slow and quiet, but micro-adjustable and uniform in quality, is all that is needed for that segment of the market. Are there ways to make grinders
dramatically less expensive, without sacrificing granularity quality, by designing them to support a very limited duty cycle and removing all "fancy" features and electronics?
Domestic users don't need to grind beans for more than a couple of drinks at a time. Machines won't overheat in a typical domestic environment (under ~100 grams per hour). And it shouldn't matter to the class of user above that it takes 15 seconds instead of 5, though noise would probably be an issue. Would much less powerful motors bring the cost down significantly? Doserless would also make it less expensive to build. A much smaller hopper would also bring the cost down. How low could the cost of manufacture get if every unnecessary feature were removed? Something like a hand-grinder with good burrs and a motor?
You could make it a little box with smaller burrs, the sort of hopper with a sliding lid that the hand-grinders use (safety-feature: grinder won't grind if the latch is open), and at the bottom, you could either have a drawer or even a bay where the portafilter could be inserted so you could grind straight into the PF.

Perhaps a multi-purpose kitchen device —some sort of transformer gadget — is a possibility? A food-processor that had interchangeable "heads" that would turn the thing from a meat-grinder into a good coffee grinder? Each head would have its own chute so there's no food in the beans and no coffee in the food.