drtzali Senior Member Joined: 9 Jun 2007 Posts: 441 Location: NY Expertise: I love coffee
Espresso: Nuova Simonelli MAC Cup... Grinder: MACAP MK7R Vac Pot: um. Electrolux? Drip: Drop Roaster: Not that advanced yet...
Posted Sun Jun 8, 2008, 3:08pm Subject: Humidity
Can a high level of humidity damage my grinder? (MACAP M7) My espresso setup is currently located in my basement, and the summertime can get pretty humid down there. Do I need to worry?
Starchief Senior Member Joined: 7 May 2008 Posts: 38 Location: Rocky Mount, NC Expertise: I like coffee
Espresso: Saeco Grinder: Le'lit PL53 Roaster: hot air
Posted Sun Jun 15, 2008, 5:43am Subject: Re: Humidity
Of course humidity will have an effect. Any ferrous metal will oxidize (rust) given time, and will probably also affect the grind clumping. As for worrying, I guess that depends on your threshold of pain.
Posted Mon Jun 16, 2008, 5:27am Subject: Re: Humidity
If you are worried about it, then I suggest a dehumidifier. But yes, if condensation builds up in the grinder, then over time it will corrode. You will also need to make more adjustments to the grind more often.
CoffeeRoastersClub Senior Member Joined: 6 Jul 2005 Posts: 2,143 Location: Vernon Expertise: Professional
Espresso: Vintage La Pavoni Lever... Grinder: KitchenAid Pro Line Burr... Vac Pot: Vintage Silex Drip: Aeropress, French Press Roaster: "EL SUPREMO" w/QuikSPIN-CRC...
Posted Mon Jun 16, 2008, 6:53am Subject: Re: Humidity
drtzali Said:
thanx for the replies.
at what level (percentage) of humidity do you think it could become a problem? I think my basement overs in the 60-70% range during the summer
marko16 Senior Member Joined: 17 Jun 2006 Posts: 52 Location: mn Expertise: I love coffee
Espresso: Anita Grinder: Rocky Vac Pot: French press only
Posted Mon Jun 16, 2008, 7:02am Subject: Re: Humidity
I wouldn't loose any sleep over this. Internally your beans have coated most parts with their oils. The use, and that will keep the burrs fine. Externally you have plastics and coated metals. Talk about humidity, try being an espresso machine with all that water and steaming going on. Most machines are surrounded by sinks and high moisture areas of the home. Until you see something alarming, I wouldn't worry.
cizinec Senior Member Joined: 10 Feb 2006 Posts: 14 Location: Texas Expertise: I love coffee
Espresso: La San Marco 85 Practical,... Roaster: Too busy brewing beer.
Posted Tue Jun 17, 2008, 2:35pm Subject: Re: Humidity
I live in Houston and coat the parts of my current grinder that are metal and don't touch the beans with food grade silicone lubricant. I don't think I'd want to get any on the burrs or anywhere the beans would go. I also make salami and use this on my grinder parts to keep them from rusting.
I just got a used Astoria (Mazzer Major) and used this on a few various parts. I have had trouble with parts rusting after removing them and cleaning them up. The burrs (or my grinder plates on my meat grinder) will begin to show rust after about an hour of being cleaned.
drtzali Senior Member Joined: 9 Jun 2007 Posts: 441 Location: NY Expertise: I love coffee
Espresso: Nuova Simonelli MAC Cup... Grinder: MACAP MK7R Vac Pot: um. Electrolux? Drip: Drop Roaster: Not that advanced yet...
Posted Wed Jun 18, 2008, 10:10am Subject: Re: Humidity
cizinec Said:
I live in Houston and coat the parts of my current grinder that are metal and don't touch the beans with food grade silicone lubricant. I don't think I'd want to get any on the burrs or anywhere the beans would go. I also make salami and use this on my grinder parts to keep them from rusting.
I just got a used Astoria (Mazzer Major) and used this on a few various parts. I have had trouble with parts rusting after removing them and cleaning them up. The burrs (or my grinder plates on my meat grinder) will begin to show rust after about an hour of being cleaned.
Posted Wed Jun 18, 2008, 10:46am Subject: Re: Humidity
I maintain our home at 60% humidity for comfort against the muggy Illinois weather but even with the windows open on the cooler days (and still 80-99% humidity) I've never had problems.
The simple solution is a dehumidifier. I wouldn't mess with my espresso equipment. Dehumidifiers will dry the entire basement and make it more comfortable for you and deter mold growth in the home (a common problem here in my area, yes its that muggy).
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