My kefir grains have been well and active for the past year, with the last two batches, a definite odd smell, not sure how to describe, and a metallic taste has developed...
I do 1st ferment in clean glass jar (2.5 gal) 24-48 hrs
I feed with white sugar ½ c per gal
everything worked fine
2nd ferment in clean glass jar with fruit addition (usually thawed frozen berries) 24 hrs
The kefir grains look large and healthy (approximately 2cups)
3 weeks ago, I decided to add some raw sugar (1tbs) to 1st ferment - add some minerals, I had only used white sugar before this,
I did not have any mineral concentrate to use.
since that time the grains seem to have a light brown discoloration, the kefir is also light brown , more than normal
any suggestions would be appreciated