tannin and red wine aging

[winemanden]

What about using a super strong black tea to add tanin? I brew the tea, lots of it, in 1 liter of water for at least 30min and then reduce the volume by half through simmering and use that.

I've used strong black tea myself on numerous occasions.it does work, but the article was about Chestwine as a substitution for Sulphur dioxide, with no effect on colour and taste!

 

[distancerunner]

There must be something in the chestnut flower extract other than tannin. If tannin is all that is needed to protect wine we wouldn’t use sulfite.