you could try a weak acid, like dilluted starsan, or water vinegar, or water and lemon juice...we often use that to get rid of oxyclean residue...don't know if it would with tsp....but it's worth a try. Just do it with one bottle and see.
Then rinse thoroughly, of course.
Like my snazzy new avatar? Get Sons of Zymurgy swag, here,
and brew with the best.
Revvy's one of the cool reverends. He has a Harley and a t-shirt that says on the back "If you can read this, the bitch was Raptured. - Madman
I gotta tell ya, just between us girls, that Revvy is HOT. Very tall, gorgeous grey hair and a terrific smile. He's very good looking in person, with a charismatic personality... he drives like a ****ing maniac! - YooperBrew