I have a shelf liner that has bumps on one side and is smooth on the other side. It is non-adhesive. Which side faces up, or what are pros/cons of each? It looks like this: Shelf Liner

1 Answer 1


The bumps face up to provide air flow.

This felicitates the complete and continuous drying of tableware which helps prevent the growth of bacteria, especially useful if you like to store your cups upside down.

There is a con to that type you have. Unlike others I've seen that are a sort of nylon web, yours is a solid sheet of plastic. If any water gets under it, it has no way to evaporate. You could put one sheet upside down to protect the cabinet, with another on top for the glassware (or just use one and be sure everything is relatively dry before stowing it).

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