Grosmimi Stainless Steel Straw Cup with Flip Top - 6oz (12 Months+)

The body is disclosed as an outer layer of 304 stainless steel with an inner layer of 316 stainless steel — both food-grade, fully inert stainless alloys — named specifically rather than as generic 'stainless steel.'

The straw is platinum silicone and the cup's food-contact surfaces are disclosed as BPA/BPS/BPF-free, going beyond a bare BPA-free claim to name both structural bisphenol replacements as absent, though no migration or lab test result is published for this finished product.

This stainless cup is sold in printed designs such as Cherry Peach, Dino Khaki and Unicorn, and no lead testing of the printed exterior is published; the brand's lead-free statements cover the sealing silicone, not the exterior print.

The silicone straw and teat should be replaced every 2-3 months and sterilization guidance is provided (30 seconds boiling before first use), but no test method or shedding/migration result at use temperature backs this interval, and the cup itself is explicitly marked not microwaveable rather than microwave-safe.

The straw/teat is disclosed as platinum silicone, the same material used across the brand's nipple line, named specifically by grade rather than as generic 'silicone,' with no nitrosamine or siloxane migration result published.

We queried the complete CPSC recall database (10,027 records, 1973-2026) for Grosmimi and found no recall at any date, in any role. A control search confirms the corpus covers comparable feeding-product classes, so this is a genuine clean result rather than a gap in the registry.

The brand publishes a concrete replacement interval — every 2-3 months for silicone straw parts — and gives visible degradation signals to watch for (pull the teat in all directions, discard at first sign of damage or weakness), covering both the interval and the check.

The brand names an ISO 9001 quality-management certificate and says its safety claims rest on studies or internal lab reports, but no product certificate, lab name or certificate number is published for this cup.

The brand discloses the country of manufacture (Korea) with a stated consistent QA process across markets, and publishes a concrete 1-year warranty against manufacturing defects with no-questions-asked replacement for leaks or material degradation.