Certified Flushability:
Verify compliance with ISO 9001 or regional sewage guidelines (e.g., UK Water Regulations Advisory Scheme). Avoid products merely labeled “biodegradable”—they may not dissolve quickly enoug
Ingredient Transparency:
Ensure no synthetic perfumes, chemical clumping agents, or silica dust. EU regulations (REACH) restrict formaldehyde and heavy metals—opt for litters with food-grade or organic certifications
Clump Integrity vs. Dissolution Speed:
Ideal litters form firm, scoopable clumps (reducing tracking) but disintegrate within 15 minutes in water. Test by dropping a clump into a glass of water and stirring
Low Carbon Footprint:
Prioritize litters made from European-sourced materials (e.g., German pine, Italian soy) to cut transport emissions. Packaging should be recyclable/compostable
Cat Acceptance:
Choose textures mimicking natural soil (e.g., fine-grain tofu or soft wood granules). Sudden switches may deter use—transition slowly over 7 days