How can I clean this tea mug?
This is a Contigo mug and I believe it is stainless steel.
It has seen a lot of tea and there is a black coating that has broken in scales in the bottom.
I've tried to soak it with vinegar but it doesn't help and since the mug is quite narrow, it's hard to scrub, so I'm looking for a chemical way to soften, or dissolve that layer.
How can I clean this mug? This is a Contigo mug and I believe it is stainless steel.
It has seen a lot of tea and there is a black coating that has broken in scales in the bottom.
I've tried to soak it with vinegar but it doesn't help and since the mug is quite narrow, it's hard to scrub, so I'm looking for a chemical way to soften, or dissolve that layer.
How can I clean this tea mug?
This is a Contigo mug and I believe it is stainless steel.
It has seen a lot of tea and there is a black coating that has broken in scales in the bottom.
I've tried to soak it with vinegar but it doesn't help and since the mug is quite narrow, it's hard to scrub, so I'm looking for a chemical way to soften, or dissolve that layer.
How can I clean this mug? This is a Contigo mug and I believe it is stainless steel.
It has seen a lot of tea and there is a black coating that has broken in scales in the bottom.
I've tried to soak it with vinegar but it doesn't help and since the mug is quite narrow, it's hard to scrub, so I'm looking for a chemical way to soften, or dissolve that layer.
