Engineering teams meticulously document component details but often fail to apply the same rigor to assembly specifications. This oversight becomes a major source of failure, especially when transitioning from pilot lines to high-volume manufacturing.

The conventional wisdom for CPG startups was to be "asset-light" and use co-packers. However, owning the supply chain provides crucial control over quality, production schedules, and cash flow, preventing startups from being pushed aside by a co-packer's larger clients. This control is now a key diligence point.

Feel Goods learned that perfecting a formula in a kitchen is misleading. Moving to a manufacturer introduces new suppliers and larger ingredient quantities, which drastically alters the final product's taste and consistency. This makes initial small-batch R&D far less valuable for scaling.

For new physical product companies, the best manufacturers are often too busy and risk-averse to work with newcomers. Conversely, factories that are overly eager for an unknown startup's business may have underlying quality or reliability issues.

After a disastrous first run with a U.S. manufacturer, Wild Rye pivoted overseas. Counterintuitively, they found Chinese partners offered superior quality, sophisticated machinery, and a proactive partnership approach—even flagging potential issues pre-production. They were also more willing to work with a small brand's lower order quantities.

When Spinbrush's first units proved defective (with 400,000 in the warehouse), John Osher scrapped the entire inventory. He knew that for a consumable product, a bad first experience would be fatal, choosing long-term brand integrity over short-term financial recovery.

Lululemon's stock dropped after recalling another line of leggings for being see-through. This isn't an isolated incident but a recurring pattern of product failure, suggesting a systemic issue in their quality assurance process that repeatedly damages both brand trust and shareholder value.

To ensure a smooth transition from development to production, an operations or manufacturing SME must be part of the design process from the start. Otherwise, products are developed without manufacturability in mind, leading to expensive, reactive fixes and subjective quality control during scale-up.

Paranoid about quality control with their first Alibaba supplier, Unbound Merino's founders flew to the factory for the initial production run. This seemingly inefficient act of being physically present built a strong personal relationship that became their primary safeguard for quality.