#360 - Supply Chain Lessons from Building Seed, Liquid IV, and Celsius

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Sep 11, 2025

Natan Bershtel, Director of Business Development at Pelagic, brings nearly 20 years of experience in supply chain management, having worked with brands like Seed and Liquid IV. He shares vital strategies for building resilient supply chains across different growth stages. Key topics include avoiding common pitfalls, the importance of choosing the right partners, and how effective logistics decisions can enhance brand competitiveness. Natan also emphasizes the transformative role of third-party logistics and the power of strong relationships in supply chain success.

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ANECDOTE

From Teacher To Contract Packaging Leader

Natan left a 20-year teaching career to run his family's contract packaging business.
He worked with brands like Seed, Liquid IV, and Celsius before exiting and joining Pelagic.

INSIGHT

Match Supply Chain To Growth Stage

Supply chain choices must align with a brand's stage and growth goals.
Pelagic builds specialist teams for different growth phases to match those needs.

ADVICE

Source Providers By Relationship, Not Ads

Find suppliers through networks and referrals rather than ads.
Continuously vet partners because capabilities and fit change over time.

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Natan Bershtel is the Director of Business Development at Pelagic, a fractional supply chain partner for growing brands and CPG companies. Before Pelagic, Natan spent nearly 20 years as a public school teacher before joining and eventually running his family’s contract packaging business—where he worked with iconic names like Seed, Liquid IV, Celsius, and Element. After his company’s exit, Natan teamed up with John Morgan to help brands avoid common operational pitfalls and build supply chains that scale.

In this episode of DTC Pod, Natan breaks down what it takes to build a resilient supply chain at every stage of brand growth. He shares practical strategies to avoid common pitfalls, tips on sourcing the right partners, and insights on how successful brands approach manufacturing, fulfillment, and logistics. Natan also highlights why supply chain is core to a brand’s success and how founders can create real competitive advantages by making supply chain decisions based on quality, relationships, and flexibility.

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On this episode of DTC Pod, we cover:
1. Importance of supply chain in DTC and omnichannel brands
2. Key players: sourcing, manufacturing, co-packers, 3PLs, and fulfillment
3. Differences in supply chain needs for emerging vs. established brands
4. Supply chain pitfalls and how to avoid them
5. Vetting, relationship-building, and collaboration with your supply chain partners
6. Overlooked areas of supply chain where founders lose time/money
7. How to approach minimum order quantities and negotiations
8. When to outsource fulfillment vs. doing it yourself
9. Logistics of manufacturing, packaging, and distribution
10. The impact of scale on supply chain decisions
11. Using data and timelines to make faster, smarter choices
12. Leveraging agency and partner networks for supply chain speed
13. Why in-person vendor relationships are crucial
14. How truly great supply chains build brand moats

Timestamps
00:00 Intro and the state of supply chain in DTC
01:40 Natan Bershtel’s background and path to Pelagic
02:24 Lessons from growing a contract packaging family business
04:11 Why supply chain is the backbone of every brand
05:28 The role of execution vs. creative vision in CPG
07:09 How to find and vet the best manufacturing/packaging partners
11:15 The agency advantage: getting reps and sharing supply chain intel
12:41 Core players in bringing a product to market
15:04 Aligning supply chain strategy with brand vision and goals
16:56 Two playbooks for scaling: bootstrap profit vs. capital-intensive growth
19:48 Timelines—how to ask supply partners the right questions
21:41 How and when to ask for what you need from partners
26:32 End-to-end product launch: manufacturing, packaging, and fulfillment
28:42 When to move fulfillment to a 3PL (and when to keep it in-house)
33:15 Tech and process innovation at leading 3PLs
35:14 Strategic decisions: packaging, location, and unit economics
38:58 Challenging assumptions and reviewing supply chain regularly
42:08 Supply chain as brand moat and advantage
44:13 Final tips: Always go in-person and build real relationships

Show notes powered by Castmagic

Past guests & brands on DTC Pod include Gilt, PopSugar, Glossier, MadeIN, Prose, Bala, P.volve, Ritual, Bite, Oura, Levels, General Mills, Mid Day Squares, Prose, Arrae, Olipop, Ghia, Rosaluna, Form, Uncle Studios & many more.

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Natan Bershtel - Director of Business Development at Pelagic
Blaine Bolus - Co-Founder of Castmagic
Ramon Berrios - Co-Founder of Castmagic