Fred Water Flasks were designed for refilling and we just recently came across a product that makes cleaning them super easy. Checkout BOTTLE BRIGHT effervescent cleaning tablets (for sale on Amazon). They work amazingly well in just a few minutes and they're chemical free.
Fred Water plastic bottles will deform in the dishwasher. Fred Water stainless steel bottles are dishwasher safe, but we recommend hand washing the color coated bottles.
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