I am a regular second cup customer who refils his coffee all the time. I noticed that the first time they puring me the coffee in my cup some bubles happen to be on the top of my coffee and...

Second Cup

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hamidr

I am a regular second cup customer who refils his coffee all the time. I noticed that the first time they puring me the coffee in my cup some bubles happen to be on the top of my coffee and when I refill the cup the bubles never appear.
I wonder what is the cause of this.

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replied to: hamidr

DAnny69

Replied to: I am a regular second cup customer who refils his coffee...

Soap residue

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replied to: DAnny69

hamidr

Replied to: Soap residue

Is that healthy to have soap residue in our cup?

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