Sorry if this has been asked many times before which I guess it has! ( I did search but not a 100% answer)
My mug press has been working fine for what I have been doing - which is small picture with text but tonight I wanted a new mug for work but it turned out with strips over it,
Setting have not been changed and I did a few mugs after with no problems but this one went AWOL
Did it over cook or a pressure issue (I know all mugs can differ in size a little)
Setting I have been using without a problem on text is 380 @ 120 minutes
Sorry for the cr@p picture, taken on my phone....