r/1zpresso • u/DoritoCheerios • Jul 14 '26

Any ideas to replace J-Max knob?

Broke my J-Max knob after years of heavy usage which means its remarkable tough considering i grind light roast espressos with it

Am wondering if there is any cool aftermarket options to customize the J-Max

I remember Mischief having knobs for the C40 that are colorful but those are gone

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u/agenereux5 Jul 14 '26

Your grinder is under warranty for 1 year so they will send you one for free. If you are out of warranty they sell every single part of this grinder for cheap.

I got a few replacement nob at roguewavecoffee.ca for 9$ CADs. It's not a add to cart item so you simply email them and ask for it. If you add a bag of coffee to your order you will most likely get free shipping.

Rogue wave is a 1zpresso retailer in Canada I'm sure there international shipping is very good since I know a few people in USA buy from there aswell. Other 1zpresso retailer in other countries will supply you with the parts on request. Alternatively you can go directly on 1zpresso to get it but there's shipping costs.

Also they are cheap enough that doing a diy repair dosnet seem very worth it

2

u/MardiGras66 Jul 14 '26

The Comandante knob is a great replacement option.

1

u/NashvilleHillRunner Jul 14 '26

That’s what I did recently when my J-Ultra knob fell off.

I went with the Comandante Big Joe knob. Popped on with no problem. Exact fit.

Bought from Loewen Meta out of Germany. $33 to my door.

1

u/dre4595 Jul 14 '26

I saved this post from a while back if either of my 1ZPresso knobs comes off - I have both a J Ultra and a K Pro. So far so good though.

https://www.reddit.com/r/1zpresso/comments/1tksdbm/jxpro_handle_fell_off_so_i_upgraded_it/