For "utility" coffee drinking, I temporarily need to grind coffee with something as inexpensive as possible, and would prefer something with a motor. My understanding is that fresh beans ground with a blade grinder at brewing time will still be significantly better than old ground coffee. So I'm looking at inexpensive blade grinders, and have a question about blade design.
On some models, the blades sit fairly high off the base of the grinding cup (these are sold as coffee grinders, not general purpose grinders). They are advertised as handling enough beans for 10-12 cups. With that amount of coffee, the grounds will push each other around and mix in the cup. However, I'd be grinding just a couple of coffee measures at a time.
Here are a couple of pictures from the product information for one such grinder (Proctor Silex 80402):
In the first picture, you can see the large gap below the blades. The second picture shows some small amount of ground beans sitting completely below the blades.
It looks like for a small amount of coffee, the beans would quickly break up into chunks small enough to drop below the blades. Then they would pretty much just sit there and not get ground finer as the blades spun above them.
I'm wondering if people here have experienced that problem with blade grinders of a similar design, or would even a couple of measures of coffee be enough to go well over the top of the blades, so the grounds do mix and circulate?
If anyone doesn't want to admit on the site to using a blade grinder, feel free to preface any answers with "I read somewhere..." or "Long, long ago before I knew anything about coffee...". :-)