Green Pre-Selection 2021

CRC is a coffee peel, added with cow dung, and made into insect repellent cake. Put it into a container made of local red clay. After lighting, wear it on your body or hang it on a coffee tree to let the smoke repel mosquitoes. The coffee peel is coffee Abandoned agricultural material contains a little caffeine. The dried cow dung has a green grass fragrance. The smoke after burning has the smell of mosquitoes and insects. It can effectively repel mosquitoes and insects, protect coffee farmers, and protect coffee trees, forming organic Cycle planting.