Black Contigo AUTOSEAL Stainless Steel Vacuum Insulated Tumbler
Available now in black, this travel mug is designed to be 100-percent leak-proof. We use one of these everyday on our ride to work, and the patented AUTOSEAL lid is what makes the mug leak-proof and spill-proof, yet it also makes drinking easy. The 100 percent spill- and leak-proof AUTOSEAL lid automatically seals between sips, making it impossible to spill. There's no lid to remove or spout to open, so it's great for one-handed, on-the-go drinking--whether commuting, hiking, or just dealing with a busy day. Simply press the button to drink and then release to seal between sips.
Made from durable stainless steel, the mug has a double wall and is vacuum-insulated, ensuring that hot beverages stay hot and cool beverages stay cool. Vacuum-insulated technology keeps beverages hot for up to four 4 and cold for up to 12 hours.
At Contigo AUTOSEAL Stainless Steel Vacuum Insulated Tumbler
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Posted by Jay Brewer at October 19, 2012 6:10 AM
Nevermind... just got this mug yesterday. The included cleaning instructions CLEARLY state to wash-out the lid immediately after you're done using the mug.
So I guess my original suggestion was correct. Wash the mug as soon as you can, don't leave it sitting around & it should be fine.
@Emily... I'm curious if you experienced the "coffee gunk" issue with just plain black coffee or mostly when using coffee that had creamer & sugar added to it?
I can see how the sugar & cream could gunk things up over time, but was wondering if those who drink only black coffee are also experiencing this.
Guess you could always immediately rinse the mug & lid as soon as you're done using the mug (providing you have easy access to a nearby sink/washroom) in order to prevent build-up.
I have had 2 of these mugs. They really do keep your coffee hot for a long time and they will not leak. However, they are a BEAR to clean. The lid has many nooks and crannies and coffee "gunks up" in there easily and is very very hard to remove. I have tried hot hot water, dishwasher, bleach, various assortment of little brushes, you name it. It's a lot of work to keep the lid clean and I'm not really sure it's worth it.