I'm curious what fraction of people are single dosing.

I have been using a single dose bean dispenser that I designed for about five years now. It dawned on me that this might be a good thing for the home baristas out there. It's adjustable, and makes single dosing easy. When I'm blurry eyed in the morning, all I have to do is push a slider bar, and grind.

Before I go to the effort of starting a business around this thing, I thought I'd see what kind of response I get from all of you discriminating peoples here.

I've got two versions on the drawing board. One that mounts to the top of the grinder, and one that is a stand-alone table top.

More than trying to describe what I've designed, I'm curious whether there's even a market for something like this.

Thanks!!!

Wow, that was fast.

It's probably not a good idea to post this since this isn't what I intend for the doser to look like. Part of the reason is that many people don't want their grinder height increased. But for some other reasons. I'm going more toward a countertop model.

Here's an early version of the grinder mounted. Not the best photo. But the idea is by simply sliding a bar, one gets a measured dose.

That's very much something like Versalab has for M3, see: http://www.versalab.com/server/coffee/grindernew.html

Thanks for posting that. I should have known it would already exist.

All I know is it's invaluable to me.

I'm sure curious what the interest is in a single doser.

Most grinders come equipped with dosers. They are designed to deliver volumetrically measured portions of particulate. Dosers are also highly adjustable.

This is what I'm hoping to discover- is it useful?

I have been on coffee forums long enough to know that people do single dose. Why do they do that if they can just grind up a bunch of coffee and then dose it through the doser?

My idea is fully adjustable from a triple down to a single. At least that's the way I have it in one prototype.

I wonder how well a ground coffee doser would work on whole beans.....(reliability, consistency).

One could move the doser before the grinder with a little hackery, as opposed to building a new doser.

You could almost use a stock gumball machine on your counter as a volumetric dispenser. The doser mechanism is usually adjustable to control how much candy is dispensed. It's already designed to be food safe.

My problem is that I single dose straight from my little 8 oz jelly jars onto the scale. I'll switch coffees so often that I wouldn't want to load up a doser with a whole lot of beans. Now, if I were working my way through a bag of Red Line or something, it might be a different story.

allon wrote:I wonder how well a ground coffee doser would work on whole beans.....(reliability, consistency).

One could move the doser before the grinder with a little hackery, as opposed to building a new doser.

Yup, that's what I meant too and since I've got a doser, beans and a scale, I put it to the test immediately.
From a very unscientific study done by me about 1 hour ago, reasonably accurate. I dumped about 300 grams of whole beans in my doser and measured the weights per thwack. It varied from 4.5 to 4.9 grams. +/- 0.2 gram deviation from a set dose seems accurate enough for most users.