Fixed!

Thanks teaser.

A few things come to mind - she keeps her refrigerated kefir with lids screwed on. Granted, I make single servings - re: pour into (coffee) cups and eat when I eat. She's making kefir fruit flavored drinks though - going to have to experiment to see.

She says with the pineapple one..., it was going on for months now. So the fruit flavoring is the ticket, and not eating the fruit all the time - going to have to try that too.