Which insect infests our food cupboard?

I am looking for the name of this insect. It reminds me of a moth, but there are probably many kinds of it. It terrorizes a cupboard with food items and leaves eggs and larvae in rice, flour, sugar, oatmeal, etc. It leaves behind a spider web-like structure that then contains larvae. Some periods (if we have found a source full of larvae) they are less intense, later they are present again in full force. The question is whether these can be combated in any way. We have already thrown away all products more than once, but when I also recently found a larva in a tea bag, it became clear how difficult it is to get rid of them.