Sept. 17, 2018
One day Tom noticed a sticky substance excreting from his A portable coffee brewer that makes a unique dense brew, somewhat similar to an Americano.: The Aeropress looks like a giant syringe: coffee grounds are in the bottom,... plunger so he contacted the folks at Aeropress. They informed him that plungers stored unused in warm temperatures will tend to excrete this sticky stuff. They also said it’s harmless and that it’s just a combination of coffee and mineral oils coming out of the rubber.
Just because something is harmless doesn’t mean it isn’t gross so Tom made a cleaning solution with Urnex Tabz carafe cleaner and let it soak for a bit, turning the clear sticky stuff into an opaque paste that could wipe off easily.