Product, Trend

K3® on the rise in the U.S.

02/18/2026 | 3 min read

Jonas Kristensson

Across the United States, innovative dairy (and dairy‑alternative) brands are rethinking how their products appear on the shelf and how their packaging contributes to a more sustainable future. One solution is leading the way: Greiner Packaging’s K3^® cardboard‑plastic cup.

From New York to California, more and more brands are choosing K3^® to help them stand out, reduce plastic use, and communicate their values. Three success stories, Tezza Foods, Sourmilk and Norr Organic demonstrate why K3^® has become the go‑to choice for young, fast‑growing US dairy brands.

A standout presence for new brands: Tezza Foods

California‑based Tezza Foods was searching for packaging that would immediately catch consumers’ attention in a crowded yogurt category and found the perfect match in K3^®. The brand, known for its creamy, protein‑rich soy‑based yogurt, selected the K3^® cup for its premium look, bold visual impact, and sustainability benefits. The fully printable cardboard wrap allows Tezza’s vibrant colors to stand out on the shelf, creating a striking contrast to the predominantly direct printed cups common in the category.

“People eat with their eyes first. We chose the K3^® cup because the cardboard label looks polished and premium, allowing our bold colors to stand out and appeal to the senses.”

Sophie Moscovici Troyka , Senior Brand Manager at Tezza Foods

Backed by responsive service and strong collaboration with Greiner Packaging, Tezza Foods is now expanding to over 100 locations across the West Coast with even more distribution planned.

Sustainability meets creativity: Sourmilk

New York start‑up Sourmilk brings a playful yet purpose‑driven approach to Greek yogurt and wanted packaging that felt just as natural and thoughtful as the product itself. For Sourmilk, K3^®’s natural paper‑feel exterior, recyclability, and reduced‑plastic design were essential factors.

With its extra‑thin plastic walls supported by a sturdy cardboard wrap, the K3^® cup aligns with the brand’s mission to make gut‑friendly yogurt in the most environmentally responsible way possible. The Tear-Tab system makes separating materials easy, enabling proper recycling.

“Our yogurt is crafted to support the gut and packed with protein. It’s all about feeling good, inside and out. We wanted our packaging to reflect that same philosophy.”

Kiki Couchman, Co founder of Sourmilk

True to their creative spirit, Sourmilk even prints hidden messages inside the cardboard wrap, adding a fun, personal twist that builds loyalty and surprise with every cup.

A perfect match for organic values: Norr Organic

For Norr Organic, the New York‑based skyr brand, clean ingredients and sustainability have been core values from the beginning. When searching for packaging that reflected those principles, K3^® was the clear choice. Offered in 4.4 oz and 16 oz formats, the K3^® cup helps Norr Organic reduce plastic usage while offering a premium, natural appearance on shelf. Its cardboard wrap supports high recyclability, allowing the white PP cup to become valuable post-consumer recyclate (PCR) when separated.

“It’s been great from day one. The team has been incredibly responsive and accommodating, making the whole process smooth. Working with them truly is a pleasure.”

Pierre Forien, COO from Norr Organic

Why US brands choose Greiner’s K3® cups:

Across these three success stories, the reasons behind K3^®’s U.S. momentum are clear:

Because the cup is supported by the cardboard wrap, the plastic walls can be made thinner. This smart combination not only reduces plastic use but also achieves a high recyclability rating for the plastic cup, when the materials are separated correctly.

High‑quality, full‑surface printability allows brands to stand out — whether through bold colors, diverse decoration options such as embossing or metallic effects, or even storytelling placed inside the wrap.

From early prototypes to nationwide rollouts, Greiner Packaging supports brands throughout their growth journeys.

From the West Coast to the East Coast, K3^® is helping US brands look better, grow faster, and reduce their environmental footprint. Whether it’s Tezza’s bold shelf presence, Sourmilk’s creative storytelling, or Norr Organic’s sustainability‑driven values, K3^® is proving its value across diverse product categories and brand identities.