On those occasions when you make a second pot (or half pot) of coffee, do you dump fresh grounds on top of the ones from the first pot, or do you start fresh?
If I’m making a full pot, it’s probably 50-50. But if I’m only making a half pot, I will almost always dump more on top of the grounds from the previous pot.
Gross, no. Always start fresh. Coffee grounds are used up the first time For one thing I use about 3/4 of the basked with fresh, so there would not be room for used. I have a Tassimo at work, and everyone once in awhile an old pod gets mixed in. What comes out is slightly yellow non-coffee.
What’s wrong with leaving the old grounds in the filter? It’s not like the addition of hot water spoiled them or anything. Of course you add fresh grounds, but re-using the old grounds adds a little extra ooomph.
I am not a fusspot about my coffee. Or a coffeepot about my fuss.
The different characteristics of coffee come out at different points of the extraction process. The quickest to come out are acids and sugars, then oils, and last the more bitter tannins. By leaving the old grounds in there, you aren’t adding more ooomph, you are adding more of the unpleasant bitter flavors without anything else to balance them.
If I want to make another full pot of coffee, and only have enough grounds for a 1/2 pot, then I just keep the old grounds in there and dump the new on top. Otherwise, I don’t reuse the old grounds.
Assuming coffee’s like tea, most of the caffeine is going to be extracted in the initial brewing. So reusing them doesn’t really accomplish much- you can’t get a good pot of coffee out of the leftover grounds, and what you do end up with is going to be distinctly low octane.
On the 2nd pot right after the first, I DO throw the new grounds on top and reuse the filter, but I use the normal amount. It always tastes fine to me.