My Stanley thermos leaks occasionally, especially when it's filled with hot liquids. What might be wrong?

On August 24, I bought Stanley The Iceflow Flip Straw 2.0 Tumbler 0.89l thermos from Izmir Forum Bornova SuperStep store and the product was delivered to me by cargo on August 29. On September 6, my thermos flowed when I was in my bag and all my stuff, including my AirPods headphones, got wet in my ...

In September 2025, I purchased a Stanley The IceFlow Flip Straw Tumbler 0.89L in Lilac color from Stanley Türkiye’s official website, with order number 21425. The product was delivered to me on September 11, 2025, and I started using it on September 12. However, just 2–3 days after I began using it,...

In October 2024, I purchased a Stanley All Day Slim cold water bottle through Amazon (Invoice No: 3002024031576907). Since the first day of use, I have noticed surface peeling on the exterior, and the bottle has a constant leakage problem. These issues have persisted for several months, and I consi...

On July 30, 2025, I purchased a Stanley The Aerolight Transit Mercan Mug Thermos (Receipt No: 0009) for ₺1,690. On the very first use, when I poured in hot coffee, the lid burst open forcefully, splashing everywhere. My arms and hands were burned, and my kitchen counter and carpet were badly stained...

I bought a Stanley 1.9L thermos from Teknosa on August 14, 2025, but from the very first use the handle locking mechanism has not worked properly. While pouring tea, the handle suddenly folds down, and more than once it nearly caused burns. My sister owns the exact same model and her thermos doesn’t...

I purchased a Stanley 887 ml thermos from Çetinkaya store. After just two days of use, the lid developed a crack and leakage problem following a minor impact. For a product that is marketed as high quality and comes at a premium price, I was very disappointed to see it fail so quickly. I did not re...

Hello, I have made all the necessary requests regarding the defective Stanley thermos, but I haven't received a response since April 26th. I can't use the thermos and I request a replacement immediately. It's unfortunate that we chose you when there are better products on the market and encountered ...

My spouse brought me a Stanley H2O thermos with a straw lid from abroad, and I was really excited to use it because it offered the hot retention feature I needed. However, not long after I started using it, the lid stopped sealing properly. It simply doesn’t stay closed anymore, which defeats the wh...

I recently purchased a Stanley thermos as a new mom needing a reliable product for daily use. Unfortunately, the model I received came with a straw lid that leaks, which I later found out is a known issue with this version. What makes this even more frustrating is that shortly after I purchased it, ...

I purchased the Stanley Quick Flip model just a week ago, and it has quickly become one of my most regrettable purchases. The plastic part of the lid was jammed, and as soon as I finally got it open, the lid flew off with a surprising force. Hot liquid splashed onto my body, resulting in burns that ...

Three years ago, I bought the Stanley Switchback model sold at BIM. The product has a serious safety issue—it ejects the lid when filled with hot drinks. One time, I filled it with filter coffee, closed the lid, and while placing it in my backpack, the lid popped off, causing burns on my hand and ar...

I purchased a Stanley thermos because it was advertised with a lifetime warranty, but my experience has been anything but reliable. The thermos started leaking, so I sent it in for service. I patiently waited an entire month, only to have the thermos returned to me with a cash-on-delivery charge—eve...

I purchased a Stanley thermos two years ago, trusting the brand’s reputation and the promise of a lifetime warranty. Unfortunately, it has started to leak, which completely defeats the purpose of a thermos. Even worse, although I’ve only ever carried it safely inside my backpack, the exterior is now...

I’ve had serious issues with the lids of three Stanley thermoses I purchased—two 500 ml and one 350 ml model. All of them leak hot water from the lid when freshly filled, creating a dangerous situation. I’ve nearly been burned several times due to this faulty design, and I no longer feel safe using ...

Stanley does not stand behind the thermos it sells. They sent the thermos back from technical service, claiming there was no problem, even though it could not keep heat for the promised time. The product, which is advertised as keeping liquids hot for 12 hours, becomes too cold to drink in just 3 ho...

Hello, I purchased the Stanley brand thermos, The Quick Flip Stainless Steel 1.06-liter model, through an Amazon seller approximately one year ago. I bought the product as a gift for my father, so I wasn’t aware of its condition. A week ago, I used the product and noticed that it was leaking water. ...

I recently discovered that my Stanley thermos leaks, and upon further research, I learned that its lid has been recalled due to a potential burn hazard. However, it seems that this recall has not been extended to customers in Turkey, which is completely unacceptable. As a consumer, I have the right...

I purchased a Stanley thermos from Trendyol’s official store, expecting high-quality heat retention. However, upon first use, within just one hour, my boiling tea dropped to an undrinkable lukewarm temperature. When I touched the lid, I could feel the heat escaping, which should not happen with a pr...

I purchased a Stanley thermos, but within just three days, I noticed that the lid was leaking. I immediately took it back to the store, expecting a replacement or solution. However, instead of addressing the issue professionally, the store managers tested the product themselves and, despite seeing t...

On July 15, 2023, I purchased a Stanley thermos from Amazon.com.tr and registered it under the lifetime warranty on July 23, 2023. However, on December 16, 2023, I accidentally dropped the thermos on a hard surface once, which resulted in a dent on the bottom, making it unstable when placed on a fl...

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I purchased eight Stanley products from different platforms, and while I haven’t even used all of them yet, two have already had lid issues. One has a leaking gasket, and the other cracked without any impact. The biggest frustration? There’s no customer support, and I can’t even buy replacement par...

My Stanley thermos is leaking, and I have reported this issue multiple times via WhatsApp and Instagram, yet I have received no response. How long am I supposed to wait? Why is Stanley ignoring customer complaints? The lid is defective—it leaks when placed in my bag, making it completely unreliable...

I received a brand-new Stanley 0.47L Classic Vacuum Lock Mug as a gift, and after using it just twice, the lid’s locking tabs broke. This is extremely disappointing, especially from a brand that claims durability and lifetime quality. I already own four Stanley products, but I have never seen such ...

I’ve been experiencing a heat retention issue with my Stanley thermos, and despite reaching out to customer service, the responses have been unhelpful. I clearly reported the problem, but they replied with a generic statement claiming issues like dents, scratches, odors, or damage-related problems a...