how to make your own c02
Instructions. Make a hole in your container lid. Fill your container--water bottle, 2-liter bottle, etc.--halfway full of tap water. Put in 1 tsp. of sugar and 1 tsp. of activated yeast. Cover the hole of your container and shake it vigorously for a couple of minutes.Shake your bottle every 6 hours for 48 hours. You will need to get some sleep, so just shake your bottle when you wake up in the morning. Watch for bubbles after 48 hours.ips & Warnings. 1  Make sure you cover the hole while shaking your container. 2  There are beakers and tubes you can hook up to your container to capture the CO2 gas if you have a specific use for the gas that does not involve gardening.