I have a Macap M4 which I bought new in 2008. As best I can estimate, it's had approximately 130-150kgs of beans put through it in those 5 years (ie. approx. 500g per week).
Speaking to an acquaintance in the trade today (a roaster) he suggested my grinder's burrs would be well over-due for replacement.
Is there a general rule of thumb regarding how often to replace grinder burrs? Or are there hints I can look for in the ground coffee produced?
Any help much would be appreciated.
Speaking to an acquaintance in the trade today (a roaster) he suggested my grinder's burrs would be well over-due for replacement.
Is there a general rule of thumb regarding how often to replace grinder burrs? Or are there hints I can look for in the ground coffee produced?
Any help much would be appreciated.

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