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.
Gardenerâs Helper. 1  Coffee grounds are highly acidic, so spread them generously over the flower beds of acid loving plants, such as azaleas, rhododendrons, and Hydrangeas, for amazing blooms! 2  Give seedlings a nitrogen boost by stirring grounds into soil or a watering can.