Our Seed Quilts are made of all food-grade materials and are compostable in your green food and yard waste bin. The main part is the coconut fiber mat. Above the coconut husk pad is a felt fabric then a paper layer, and the seeds are nestled in-between. Microgreens grown with Hamama products come into contact with coconut, soy, and corn-based materials. If you are allergic to any of these ingredients, please consult your doctor before using Hamama products. Hamama products are also produced in a facility that processes wheat products.