Karst vs Open Farm
An independent side-by-side ethics comparison of Karst and Open Farm across certifications, average sustainability score and product range.
Karst
Higher score93.3/100 avg ethics
3 products tracked
Certifications
Open Farm
93.1/100 avg ethics
10 products tracked
Certifications
Top Karst products
Revolutionary 'stone paper' notebooks made without water, trees, or bleach, providing a waterproof and tear-resistant writing surface.
A revolutionary tree-free notebook made from repurposed calcium carbonate (stone) instead of wood pulp, using significantly less water and energy in production.
A revolutionary waterproof notebook made entirely from recycled stone waste instead of trees, utilizing zero water or bleach during production.
Top Open Farm products
Industry-leading transparency with 100% traceable ingredients and high-welfare seafood standards.
Ethically sourced, single-ingredient dog chews that prioritize animal welfare and complete supply chain transparency.
A premium, ethically sourced freeze-dried raw food topper that prioritizes animal welfare and supply chain transparency. Using humanely raised chicken and wild-caught salmon, this product offers a nutrient-dense boost for feline diets while adhering to strict environmental standards.
A premium, highly transparent dog treat utilizing ocean-friendly salmon and traceable ingredients, backed by rigorous B Corp standards and third-party animal welfare audits.
A premium, fully traceable dry dog food featuring wild-caught Alaskan salmon and nutrient-dense ancient grains, prioritized for animal welfare and environmental transparency.
Open Farm stands out as a global leader in pet nutrition transparency, offering a premium freeze-dried raw topper that prioritizes animal welfare and supply chain traceability.
Frequently asked: Karst vs Open Farm
Which is more ethical, Karst or Open Farm?+
Karst scores higher on independent ethics scoring: Karst averages 93.3/100 vs Open Farm at 93.1/100.
Which has more certifications?+
Karst appears with 4 verified certifications (B Corp, Cradle to Cradle, Climate Neutral, 1% for the Planet). Open Farm appears with 8 (B Corp, Certified Humane, MSC, Ocean Wise, Leaping Bunny).
Are these scores independent?+
Yes. Both brands are scored by the same methodology — never paid placement. See our methodology page for the weighting.