We bottle peace of mindRapidSterilise+, RapidCool and Rapid Bottle are designed to work as a team... so you can sterilise, cool and be ready to feed in 4 minutes.****4-7 minutes depending on feed size.Using UV light, no steam needed. Because plastic baby bottles and boiling water... not the best match!The fastest way to make a safe feed for your baby.Teat flow rates0m+ - Slow flow3m+ - Med flow6m+ - Fast flowRapidSterilise+ in 2 minutes**2 minute sterilisation with 2 step process.Glass bottle for safe feedsNatural latch, anti-colic teat- Gradual sloped teat to allow a breast-like deep latch.- 3 advanced anti-colic valves.- Milk flow never touches plastic.- Premium borosilicate glass made to last.- Stain-resistant and odour free.- Silicone coating for a soft feel and gentle hold.