I have the second one Le Bistro.
It is formulated with a product call microban. You can search it on the web. it stops microbes from accumulating and living on the plastic. they even put it in baby bottles i think. so i has to be safe if the fda approved it.!!!
Bella's never gets yucky. I only have to rinse it in hot water and dry it with a paper towel.. There is Never any funk on the towel!
I do this to check to see if there is any slime or anything starting but it always comes out clllllllllllllean!
I wouldnt use anything else
