Food-grade Safe Material for Oral Contact
Complies with SQF and FDA certifications, free of harmful substances like fluorescent agents and plasticizers. Heavy metal content ≤ 0.1ppm, total microbial count ≤ 100CFU/g, avoiding oral mucosal irritation.
Odorless Treatment
Sterilized at high temperature and treated with odor adsorption (e.g., activated carbon impregnation) during production, ensuring the material itself is odorless and does not interfere with the original coffee aroma.
Precision Controlled Release for Balanced Taste and Release Efficiency
Three-dimensional porosity regulation through a porous network structure enables controllable release rate of coffee components, achieving a sublingual experience of "slow release and continuous sweet aftertaste, avoiding irritation from traditional chewed coffee.
Ultra-soft Touch and Saliva Resistance
Skin-friendly microfiber design with fiber diameter about 1/50 of human hair, surface friction coefficient ≤ 0.3, providing no roughness for long-term sublingual use.
Saliva Erosion Resistance
Passes 72-hour saliva immersion test:
Weight loss rate ≤ 5%, tensile strength retention rate ≥ 70%;
No swelling or discoloration in saliva pH 6.5-7.5, ensuring structural stability and preventing rupture or deformation during use.
Anti-leak and Portable Design
Enhanced sealing process: edges adopted ultrasonic welding or heat-sealing with sealing strength ≥ 3N/5cm, no leakage under 100kPa pressure (when internal liquid content ≤ 0.2ml), preventing coffee liquid from spilling and contaminating mouth or clothing