mr_tripp Senior Member Joined: 3 Dec 2012 Posts: 3 Location: St. Louis Expertise: Just starting
Posted Sun Feb 17, 2013, 3:41pm Subject: Static Electricity from Grinder
I have recently been put in charge of my church's coffee cafe' and we are using a commercial style grinder (the kind at the grocery store) and use a plastic pitcher to collect the grinds because the basket and filter do not fit in the grinder. This machine makes a mess because the grinds stick to EVERYTHING. Any recommendations? Would a stainless steel or aluminum pitcher, or something else work better?
Posted Sun Feb 17, 2013, 7:51pm Subject: Re: Static Electricity from Grinder
I predict that if you use a metal pitcher your static issue will be greatly diminished. You do not want electrically non-conductive for a grounds container.
There was a string about static and grinders some years back. "What a mess..."?Page=1 In the string near the end is a before and after of a cheap pseudo burr piece of junk which I modified by lining the grounds hopper with aluminum tape. It was a static monster. It is still a piece of junk but static is not a problem.
Phil
mr_tripp Said:
I have recently been put in charge of my church's coffee cafe' and we are using a commercial style grinder (the kind at the grocery store) and use a plastic pitcher to collect the grinds because the basket and filter do not fit in the grinder. This machine makes a mess because the grinds stick to EVERYTHING. Any recommendations? Would a stainless steel or aluminum pitcher, or something else work better?
yakster Senior Member Joined: 25 Feb 2009 Posts: 1,006 Location: San Jose, CA Expertise: I live coffee
Espresso: Gaggia Factory / La Peppina... Grinder: Vario / Kyocera Vac Pot: Yama 8 + Pyrex Lox-in Rod Drip: Brazen / Kalita / Chemex /... Roaster: Behmor
Posted Sun Feb 17, 2013, 9:48pm Subject: Re: Static Electricity from Grinder
You could try adding a drop or two of water or spraying a mist on the coffee before grinding to reduce the static. See the following thread on Home-Barista for a discussion on this technique.
Posted Mon Feb 18, 2013, 5:50am Subject: Re: Static Electricity from Grinder
yakster Said:
You could try adding a drop or two of water or spraying a mist on the coffee before grinding to reduce the static. See the following thread on Home-Barista for a discussion on this technique.
I use about 1 drop per 7g-14g of coffee. Works best to measure your coffee, add the drops, shake the beans to distribute the water, then toss into your grinder. It adds about 0.04g of water to the coffee - miniscule to nonmeasurable. Typical evaporation alone on a pourover is usually well more than a gram by comparison.
Vermouth mister is also effective.
I've also had varying luck depending on the day by just "fogging" the coffee and shaking the beans before grinding (take a mouthful of air, compress it for a few seconds, and gently 'fog' the beans like you're trying to fog a mirror). If it isn't too much static, this is enough to make it go away, but not on an especially dry day with especially dry coffee. I only do this for my own coffee - people get grossed out by someone breathing on their coffee... LOL
------------------------------------------ ----------------------------------------- Le café doit être noir comme le diable, chaud comme l'enfer, pur comme un ange, et doux comme l'amour.
"There is no right answer with coffee. There is only the elixir in your cup at the moment you partake."
"...I often say that when you can measure what you are speaking about, and express it in numbers, you know something about it; but when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind;..." - Lord Kelvin RECIPES thread => http://www.coffeegeek.com/forums/coffee/machines/585708
Posted Mon Feb 18, 2013, 11:42am Subject: Re: Static Electricity from Grinder
Yes, a spray bottle is probably the best tool for the job. Of course this is normally used when single dosing. How much coffee are you grinding at a time?
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