Coffee vinegar

[LD-NL]

End of last year I suddenly had an idea: WHAT IF I ground coffee and add that to the delicious apple cider vinegar?

So, I did.

This was great coffee, anaerobic natural, yum. One could debate it was a bit wasteful to use it in vinegar, but I thought it would be perfect. I would have preferred using white wine vinegar, or even red, but I didn't have it at the time.

 

I simply added it to cold vinegar, no heating.

I left it for two weeks, tried some, loved it.

It was really good, I must say 😀

But enough own-bell-ringing.

 

A month later though the vinegar formed a blob on top. I threw it away.

Now, I wonder.

 

• Did that vinegar go bad?
• Should I heat the vinegar after adding the coffee?

 

I look forward to your insights 😊

[FeChef]

I add a nip or two of citric acid to my coffee. Gives it a slight tang.