food safe

There's this blue plastic mesh that our elephant garlic comes in. I was frustrated with my cheesecloth because its holes are not uniform and sometimes little things want to slip through. So I covered the mouth of a jar (the one my whole dried peas are soaking in) with that blue mesh and secured it with a rubber band--perfect! But I don't know if it's food safe. Maybe since it was touching the elephant garlic, is has to be?