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.
How to Burn Coffee Grounds for Mosquito Control. 1  Start with dry grounds. 2  Place the grounds either in a bowl or on a flat surface (like a piece of aluminum foil) outside. 3  Burn the grounds like you would burn incense.  Choose a spot upwind of your location for best 1  results. For an extra dose of repellent, add fresh bay leaves to the fire. Using coffee grounds to keep mosquitos away is an ideal solution. Itâs extremely cheap, especially if youâre already a coffee drinker and have grounds on hand.