"These cards are all pressed using soy ink (may contain some nut oils) onto beautiful bristol paper which contains 30% post consumer recycled fiber (you just can't tell). Two Piglets don't use hormones or anti-b's in their products. Their paper and soy ink combination make them inkjet and laser compatible. Presses are cleaned using ordinary & simple vegetable oil, instead of harsh & non-edible smog causing solvents. Most scrap cards are shredded into packing materials for wholesale shipment. Some are used to press our insert sheets, which are enclosed with the card." www.twopiglets.com