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A grinder is the most important piece of equipment for coffee. I know I have heard that before just can't remember where.
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Just make sure it is really shiny.
The Mazzer SJ seems to be the cats meow but the Vario test side by side in some blind taste tests. A mazzer is built to last a very long time in comercial settings, the Vario is built for home use and is not proven but is backed by Baratza who are great great.
What was your question? Naw I can't help you on those choices.