A bottle, made differently.
The bottle that doesn't
compromise.
Medical-grade borosilicate glass inside. LSR overmold outside. Patent-pending venting system that actually works.
The bottle that doesn't
compromise.
Medical-grade borosilicate glass inside. LSR overmold outside. Patent-pending venting system that actually works.
Zero Plastic Touches Milk
Every milk-contact surface is borosilicate glass or medical-grade silicone. No plastic vents. No plastic collar.
Shatter-Safe Design
Drop-tested and parent-proven. The LSR overmold absorbs impact and contains glass if it breaks - no shards, no mess.
Patent-Pending Venting
Dual venting reduces air intake during feeding. Less swallowed air, calmer feeds.
Two Variants. Different Jobs.
Glass + silicone overmold solves what each category alone cannot.
Ronini
Plastic
Silicone
Glass
Zero plastic in the milk path?
Free from microplastic shedding when heated?
Drop-protected — won’t shatter?
Won’t degrade or wear out over years of use?
Volume markings stay accurate (bottle doesn’t flex)?
Won’t absorb soap or detergent odors over time?
Soft-touch grip baby can hold safely?
Patent-pending dual-vent system available?
Nipple developed in consultation with an IBCLC?
One bottle system, newborn through 12 months?
Two sizes. Four flows. Auto-replaced through 12 months. Learn more →
The Venting Tube
Patent-pending. Designed to route air away from the milk path and reduce visible bubbling during feeding. It's optional, the bottle is designed to vent through the nipple alone. Free with waitlist purchases.
learn moreThe process.
Every milk-contact material is named, sourced, and tested before it ships. Nipple geometry was iterated against IBCLC clinical input until feeds landed in the 15-20 minute window. Drop tests, thermal cycling, and lot-level certifications run on every production batch. Nothing leaves the factory unverified.
Slow is the cost of doing this right.
What joining gets you.
Specific perks, not vague stay-in-the-loop language.
Works with both 160ml and 240ml bottles. For every waitlist member, no minimum.
Waitlist members receive 15% off their first Ronini order. Discount details will be sent by email before launch.
Order before the public launch on launch day. Skip the day-one crush.
Production progress, feeding tips, milestone reminders. No spam, no ads.
Got questions? We've got Ronini answer
September 2026 in the US. Waitlist members get 24-hour early access before the public launch.
The Wrapped Glass Bottle combines borosilicate glass with an injection-overmolded LSR silicone exterior, permanently bonded under pressure rather than added as a detachable sleeve or spray-on coating.
Only borosilicate glass and medical-grade silicone contact the milk. The nipple was developed in consultation with an IBCLC, and the patent-pending venting system is free with a waitlist member’s first purchase.
Yes. Borosilicate glass is non-reactive, non-porous, and doesn't leach chemicals when heated, sterilized, or repeatedly washed. It's the standard glass used in laboratory beakers, Pyrex cookware, and now Ronini baby bottles. It also doesn't release microplastics — unlike polypropylene baby bottles, which can release millions of particles per liter when heated.
Spray-coated glass bottles spray silicone onto a finished glass bottle — surface adhesion only, uniform thin coat, can degrade or separate over time. Ronini's injection overmolding bonds silicone to the glass under high heat and pressure during manufacturing. The bond is permanent (chemical + mechanical), and thickness is non-uniform — engineered to be thicker at impact-prone areas like the base and shoulders.
Waitlist members receive a free venting system with their first purchase, 15% off their first order, 24-hour early access, and useful feeding content. No spam, no ads.
We currently ship within the United States only. International signups are welcome—we’ll send helpful feeding tips, product updates, and early Ronini news while we work toward expanding worldwide.
Yes. The nipple shape was developed with IBCLC input — 20 Shore A LSR with a wide base and gradual slope to support a breastfeeding-compatible deep latch. Many parents use Ronini specifically to protect latch while moving between breast and bottle.
Yes — all components. Borosilicate glass and LSR silicone tolerate repeated dishwasher cycles (top rack), steam sterilization, and boiling water. The bonded LSR overmold doesn't trap water or grow mold.
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