Andrea writes on her site:
I’ve long admired the diaphanous teabag. Once steeped, emptied, unfolded, and ironed, the little pieces of paper resemble parchments; small stories of collections of moments. After flattening the mottled papers, I paint them with streaks of gouache, and then hand print them with carved linoleum plates. I then mount each print on a wooden panel.
Terrific collection of images with many more examples on her site.