Like animal-based gelatin, the agar is dissolved in the liquid in a small saucepan over medium-high heat, brought to a boil and then simmered until slightly thickened, about 5-7 minutes. It is then chilled in the refrigerator until set and typically enjoyed cold.
You can use coffee grounds in your garden or potted plants! The three main advantages to gardening with coffee grounds is that it attracts earthworms, brings organic material to the dirt and the microorganisms in the grounds are beneficial to aid the growth of the plants. Image Credit: Getty Images.
1. Gather the spent coffee grounds and coffee filter. If you have an existing compost pile, worm bin, or municipal compost service, adding your spent coffee grounds is easy. 1  Begin by gathering up the spent grounds as well as the paper filter if you use one. 2  Paper coffee filters are also compostable.