Static can be more pronounced when humidity is lower. This can be the result of climate or household heating/cooling. Static can cause coffee grounds to stick inside or around the coffee grinder. This can be messy and wasteful. This may be more apparent on some grinder than others.
We’ve found the Ross Droplet Technique (RDT) to be very effective at reducing static. It involves adding a few small drops of water to beans before grinding. We explore this in much more detail in our blogpost, Using the Ross Droplet Technique for Coffee Grinder Static.
We don’t recommend using this technique on electric grinders for obvious reasons.