We suggest using YETI Cleaning Tablets however all Rambler Products are dishwasher safe. If you're going the dishwasher route, just make sure everything goes where it should to get them as clean as possible.

Does putting a Yeti in the dishwasher ruin it?

Legendary YETI durability doesn't stop inside your dishwasher; thanks to rugged 18/8 stainless steel construction, your YETI cup is safe and sound. ... For average coolers and cups, the dishwasher can be a forbidden frontier. But your YETI tumblers and bottles are built to handle almost anything, no matter your plan.

Why are yetis not dishwasher safe?

Between the inside metal layer of the cup and the outside metal layer is a near-perfect vacuum. This stops heat from escaping. It was originally thought that putting your Yeti Ramblers in the dishwasher could destroy the vacuum seal, thus rendering the cup useless at retaining or keeping out heat.