Growing bean sprouts in plastic bottles is a simple and cost-effective way to enjoy fresh and nutritious sprouts at home. Here’s a step-by-step guide on how to grow bean sprouts in plastic bottles:

Materials Needed:

  1. Plastic bottles (cleaned and sanitized)
  2. Mung bean seeds (or other bean varieties suitable for sprouting)
  3. Clean water
  4. Cheesecloth or fine mesh fabric
  5. Rubber bands or string
  6. Scissors
  7. Optional: Hydrogen peroxide (for sanitizing)


1. Prepare the Plastic Bottles:

  • Clean and sanitize the plastic bottles thoroughly. Ensure there are no residues or odors left inside. You can use a mixture of water and hydrogen peroxide for sanitation.

2. Cut the Bottles:

  • Cut the plastic bottles in half horizontally. You will be using the top half as a container for sprouting.

3. Add Water and Seeds:

  • Place the mung bean seeds in a bowl and rinse them thoroughly. Add the rinsed seeds to the bottom of the plastic bottle (the part with the cap), spreading them evenly.

4. Rinse and Drain:

  • Fill the plastic bottle with water to cover the seeds. Swirl the water around to rinse the seeds, then drain the water. Repeat this rinsing and draining process a couple of times to ensure clean seeds.

5. Create a Drainage System:

  • Use a sharp object to poke small holes in the bottom of the bottle (the part containing the seeds). These holes will allow excess water to drain out during the sprouting process.

6. Secure Cheesecloth or Mesh:

  • Cover the opening of the plastic bottle with cheesecloth or fine mesh fabric and secure it with a rubber band or string. This will allow air circulation while preventing debris from getting inside.

7. Soak Seeds:

  • Fill the bottle with enough water to cover the seeds and let them soak for about 8-12 hours. This initiates the germination process.

8. Drain and Rinse:

  • After the soaking period, drain the water from the bottle. Rinse the seeds with clean water and drain again.

9. Place in a Dark Location:

  • Keep the bottle in a dark or low-light location to encourage the beans to sprout. You can place the bottle upside down to allow excess water to drain out.

10. Rinse and Drain Daily:

  • Rinse the sprouts with clean water and drain them once or twice daily. This helps prevent mold and ensures the sprouts remain clean and healthy.

11. Harvest:

  • After 3-7 days, depending on the desired sprout length, your bean sprouts should be ready for harvest. Rinse them thoroughly to remove any seed husks.

12. Enjoy Your Bean Sprouts:

  • Use the freshly harvested bean sprouts in salads, stir-fries, sandwiches, or any dish of your choice. Store any excess sprouts in the refrigerator.

Growing bean sprouts in plastic bottles is a convenient and budget-friendly way to have a fresh supply of nutritious sprouts at home. It’s a fun and easy project that doesn’t require much space or specialized equipment.