Why can’t you put vacuum insulated metal drink ware into the dish washer? Like Bubba Mugs or YETI etc…They seem solid, so what am I missing that could be damanged by, I assume, the heat?
In: Technology
Yes. Once the air inside their insulation pocket is vacuumed out, it has to be sealed somehow. Those seals will usually warp or break from the heat of a dishwasher, and once air gets back into them then they don’t insulate any better than a regular cup would.
I don’t know about all of Yeti’s products, but the 3 that I have are all dishwasher safe. But many other brands aren’t because the heat can damage them to the point that they lose their vacuum seal and get water between the walls, which could eventually get pretty gross
Beyond what others have said, the engraved cups should be hand washed so the paint doesn’t start to come off- the laser engraving removes the top layer of paint in the design and allows access to the soap and water which can cause the rest to come off too.
Dishwasher soap is an abrasive, which is why some coffee cups with cheap logos on them wear off, and aluminum pans can get dull. I would assume there is concern with damage to the stainless steel, and or the seals on the cups. I was them in the dishwasher, my wife and kids have too many of them so if one gets messed up and I have to throw it away it is a win….lol
You can. If they contain boiling liquids, you can spray them with hot water. The only time I would hesitate is if wasn’t stainless steel. The water and detergent will eventually strip paint or potentially corrode cheap alloys.
But whatever, life is too short to waste time worrying about a coffee mug…. YOLO!
I put my contigo insulated travel mugs in the dishwasher — the paint peels off. Which doesn’t bother me, but may bother some. You can buy the plain stainless steel color and then it doesn’t matter.
Thermal expansion. The air is vacuumed out but the cup is not one piece and therefore there will be a seam where the seal is made. This is going to be the weakest point and most prone to breaking. Once your seal is gone there’s no vacuum as air has filled it, and there goes most of your insulation. I don’t have any YETI gear, but I’ve washed different types of hydroflasks and related gear without one breaking, sometimes cheaper brands have the seal fail. Also if you drop it and it dents a crimp can form which will be another structural weak point. FWIW most water bottles I’ve seen fail have been from repeated drops on the same spot, as opposed to dishwasher damage, but the washer is still not particularly good practice. Especially if you do a “sanatize” or other cycle that uses extra high temp.
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