IS IT WORTH CHANGING THE GRINDER BLADES IN A BREVILLE COFFEE MACHINE?

This is a good question and the short answer is yes. But here is the long answer. if you own a BES 870,BES878 or a BES 980 or a BES 990, that is if you have a Breville coffee machine with a built in grinder. You will start to notice as the machine get older its harder to achieve a satisfactory extraction. And this is obviously because the blades are blunter and the coffee grind does not yield a fine particle but rather a crushed coarse coffee particle which does not yield a nice extraction. Blunt blades mean a slow grind and eventually the blades lock up as you attempt to get the particle size smaller by setting the blades closer.

On a commercial grinder replacing the blades makes a huge difference to the coffee extraction, so its a no brainer, but does this apply to a Breville grinder with a piddly little motor with brushes. Well today I had an Oracle BES 980 come in with a customer complaint that it lacked pressure and crema and the grinder was slow and noisy and faulty. I tested it and sure enough all of these things were true but the grinder motor seemed ok but the grind consistency was terrible and even on the finest setting with the blades adjusted it struggled to produce a nice extraction. The grind particles looked too coarse and they were. So here was a candidate for a grinder blade transplant. The cup count was 7992.

Below I will describe how I changed the blades, specifically how ridiculously easy it was and how fantastic the results were and then I am going to try and sell you a set of grinder blades. So lets begin

CONCLUSION
I am very happy with the results of changing the grinder blades. I was concerned that after 7k cups the grinder motor would have been a contributing factor in the crap grind quality, but in this case the change of blades really have made this machine great again. It was a twenty minute job and well worth the $50. Just do it!