hello bluesea,
I tested my t-buddy with Barnes and Watson Tropical Rooibos tea. Works
great! The mesh filter is fine enough not to let any stray rooibos thru and
brewed a great hot infusion. However, the swissgold infuser also has a fine
enough mesh for rooibos too...you probably already knew this. I like the
t-buddy for it's portability.
hope this helps