DIY CO2 Bags: Boost Your Plant Growth Naturally

If you’re someone who loves to grow indoor plants or is planning to start a new garden, you must be aware of the importance of carbon dioxide (CO2) for plant growth. CO2 is one of the essential ingredients that plants need to survive and thrive, and plants can significantly benefit from an increased level of CO2 in their environment. CO2 is readily available in the air around us, but sometimes it’s not enough to meet the plant’s needs, especially in indoor or sealed environments.

Commercial CO2 generators can be very expensive, and that’s where DIY CO2 bags come in. Making your own CO2 bag is an inexpensive and straightforward approach to boosting your plant’s growth naturally. In this article, we’ll discuss everything you need to know about making your own DIY CO2 bags.

What are CO2 Bags?

CO2 bags, also known as CO2 generators or DIY CO2 kits, are simple devices that release a steady stream of CO2 into the environment. The bags consist of a container or a bag filled with ingredients that create CO2. These ingredients usually include yeast, sugar, and water – simple and cheap ingredients that are readily available in your kitchen or nearest grocery store.

The yeast in the bag feeds on the sugar and releases CO2 gas as a byproduct. You can place the bags in your indoor garden or grow tent, and they will release CO2 for days, weeks or even months. The amount and rate of CO2 released depend on several factors, such as bag size, amount of ingredients used, and temperature.

Advantages of Using CO2 Bags

Increased Plant Growth

The primary advantage of using a CO2 bag is that it boosts plant growth. Plants use CO2 for photosynthesis, which is the process that plants use to create energy from sunlight. By increasing the level of CO2 around the plants, we can help them produce more energy, which, in turn, helps them grow faster and produce more significant yields.


CO2 bags are incredibly cost-effective. You can make your own CO2 bags for a fraction of the cost of buying a commercial CO2 generator, and the benefits are comparable. You only need sugar, yeast, and water to create an efficient, effective CO2 generator. These ingredients are cheap and readily available, making CO2 bags an affordable option for anyone looking to boost their plant’s growth.

Easy to Use

CO2 bags are straightforward to use. DIY CO2 bags require minimal setup and maintenance. Once you’ve created a bag, you only need to place it in your indoor garden or grow tent, and it will release CO2 steadily for several days or weeks.

How to Make Your Own CO2 Bags

Making your own CO2 bag is a simple and inexpensive process. Here are the materials and steps you will need to follow:

Materials Needed:

  • A plastic container or bag.
  • Baking soda.
  • Yeast.
  • Sugar.
  • Warm water.
  • A drill and 1/4-inch drill bit (for containers).
  • Duct tape (for bags).


  1. Cut a small hole in the top of the container or bag lid.
  2. Measure out one cup of warm water and add two cups of sugar. Mix until the sugar has dissolved.
  3. Add a teaspoon of baking soda and mix again.
  4. Add a tablespoon of yeast and mix gently, taking care not to over-stir.
  5. Pour the mixture into the container/bag.
  6. Seal the container or bag tightly (with duct tape) and shake it to mix the ingredients.
  7. Drill four or five ¼-inch holes in the lid of the container if you are using a container.
  8. Place the CO2 bag in your grow tent/room and monitor the CO2 levels for the next few days.

CO2 Bag Maintenance

The yeast in the CO2 bag will start feeding on the sugar right away, and you will notice CO2 production within a few hours. Depending on the amount of yeast and sugar used, the bag can produce CO2 for a few days to a few weeks. The CO2 levels need to be monitored regularly, and the bag needs to be replenished with sugar and yeast to ensure that the CO2 production continues.

We recommend replacing the bag with a new one every two weeks to ensure that your plants receive a continuous supply of CO2.


DIY CO2 bags are an affordable and easy way to provide your indoor plants with the essential CO2 they need to grow strong and healthy. Making your own CO2 bag is a simple process that requires only a few readily available ingredients. CO2 bags are cost-effective, easy to use and maintain and can significantly improve plant growth. Give it a try and watch your garden flourish!


Q. Can I reuse the same CO2 bag?

A. Yes, you can reuse the same CO2 bag a few times. After the initial use, empty the bag of the old mixture, and refill it with fresh ingredients. However, we recommend replacing the bag with a new one every two weeks to ensure that your plants receive a continuous supply of CO2.

Q. Can I adjust the amount of CO2 the bag produces?

A. Yes, you can adjust the amount of CO2 that the bag produces by increasing or decreasing the amount of sugar and yeast used. The more sugar and yeast used, the more CO2 the bag will produce.

Q. Can I use CO2 bags with all types of plants?

A. Yes, CO2 bags can be used with all types of plants, including vegetables, herbs, and flowers. However, some plants require more CO2 than others, so it’s essential to monitor the CO2 levels and adjust the amount of the bag’s contents as needed.

Q. Can I use CO2 bags in an enclosed space?

A. Yes, CO2 bags can be used in an enclosed or sealed space, such as a grow tent, as long as the space is appropriately ventilated to prevent the accumulation of excessive CO2 levels.

Q. Can I use CO2 bags with other CO2 generators?

A. Yes, you can use CO2 bags with other CO2 generators to increase CO2 levels in your indoor garden or grow tent. However, it’s essential to monitor the CO2 levels to ensure that they do not become too high and cause harm to your plants or yourself.


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