DrinkTanks 4 oz Tank Powder Bag 2-Pack (8 oz); All natural cleaner for stainless steel, plastic, silicone, growlers, & hydration packs; Biodegradable, residue free, & USA made

This did exactly what I needed it to do. I tried other cleaners for my stainless mugs and this by far works the best. I followed the directions as printed and they all came out stain free after 1 use. I tried others in the past and would have to use more than recommended because they didn't work well at all.

Leaves all your stainless steel bottles looking brand new on the inside. I am a heavy tea drinker and my insulated bottles would turn brown over time. This gets them back to shining silver every time with no or very little scrubbing from a bottle brush. I would imagine it will do the same on other materials as well, but I only use stainless steel. Highly recommend this product!