Hello, hello!

In this episode of the Good Garbage Podcast, host Ved Krishna sits down with Sandeep Kulkarni, Founder of Kool Earth Solutions and a global expert in sustainable packaging.

With experience spanning PepsiCo’s Advanced Research team, packaging innovation, and circular economy systems, Sandeep brings a rare insider perspective into how materials, business realities, and sustainability intersect.

🎙️ What This Episode Explores

This conversation goes beyond buzzwords like eco-friendly and biodegradable — and dives into the real science, trade-offs, and economics behind packaging materials.

From paper bottles to plastic recycling, molded fiber, and biopolymers, Sandeep explains why there is no perfect material — only better decisions depending on context.

If you’ve ever wondered:

- Can paper really replace plastic?

- Is glass actually more sustainable?

- What happens to your plastic bottle after you throw it away?

This episode answers it — honestly.

🧠 In This Episode, You’ll Learn

• Why paper packaging isn’t as simple as it seems

• The real difference between plastic, glass, and paper

• How PepsiCo approached packaging innovation

• Why recycling systems matter more than materials

• The truth about bioplastics (PLA, PHA)

• Why molded fiber hasn’t scaled yet

• How barriers (oxygen, moisture) define packaging success

• Why there is no one-size-fits-all solution in sustainability

⏱️ Chapters

00:00 Introduction to Sandeep Kulkarni

01:30 Journey into PepsiCo & Advanced Research

04:50 Paper vs Plastic: Benefits & Challenges

07:45 Understanding hermetic sealing

09:40 Glass vs Plastic vs Paper comparison

17:30 Recycling systems: India vs global

21:30 What happens to plastic bottles

23:50 Chemicals in plastics explained

26:00 Evolution of paper packaging

28:40 Molded fiber: potential vs limits

31:30 Designing sustainable packaging

39:30 Why bioplastics struggle to scale

44:30 Starbucks Cup Challenge insights

50:30 Molded fiber cups: challenges

55:30 EPS vs paper debate

58:50 Reality of disposable chai cups

01:01:15 India’s recycled plastic policy

01:04:00 Multi-layer packaging challenges

01:08:00 Real-world failures in sustainable packaging

01:13:00 Designing the “perfect” wrapper

01:19:00 Can paper fully replace plastic?

01:23:00 Future of biopolymers

01:27:00 Purpose behind sustainability work

01:30:30 What gives hope for the future

🎬 Credits

Producer: Tanishka Garg

Video Editor: Sargam Krishna

🌐 Follow & Listen

Sandeep Kulkarni: http://linkedin.com/in/sandeepkulkarni1

KoolEarth Solutions: https://koolearthsolutions.com/

Listen on Spotify & Apple Podcasts

Instagram: @goodgarbagepodcast

LinkedIn: Good Garbage Podcast

Business/queries: [email protected]

💭 Let’s Talk

If you had to redesign packaging from scratch —

Would you choose paper, plastic, or something entirely new? Why?