# Do Bottle Sterilizers Kill Germs and Keep Items Sterile? Do bottle sterilizers actually kill germs, and do they keep items sterile afterward? Dr\. Brown's Quick Cycle Sterilizer: Eliminates 99\.9% of bacteria, mold, and the yeast that causes thrush\. Contents remain sterilized for up to 48 hours if the lid is not opened\. Dr\. Brown's Microwave Steam Sterilizer Bags: Users find the bags quick and simple: bottles go in, water is added, and a few minutes in the microwave leaves them fully sterilized and ready to use\. The Australian maker page states the bags eliminate up to 99\.9% of common household bacteria and germs, a higher figure than the 99% given on the US pages\. ### 1. [Dr\. Brown's Quick Cycle Sterilizer](/products/ucp/drbrownsbaby-com/9613852868885) (sold by drbrownsbaby\.com) Eliminates 99\.9% of bacteria, mold, and the yeast that causes thrush\. - Germ kill claim: Eliminates 99\.9% of bacteria, mold, and the yeast that causes thrush\. (guide) - Sterile hold: Contents remain sterilized for up to 48 hours if the lid is not opened\. (guide) - Cycle time: Sterilizing cycle takes as little as 6 minutes, with results varying\. (guide) ### 2. [Dr\. Brown's Microwave Steam Sterilizer Bags](/products/ucp/drbrownsbaby-com/9139829965077) (sold by drbrownsbaby\.com) Users find the bags quick and simple: bottles go in, water is added, and a few minutes in the microwave leaves them fully sterilized and ready to use\. - Germ kill claim: The Australian maker page states the bags eliminate up to 99\.9% of common household bacteria and germs, a higher figure than the 99% given on the US pages\. (guide) - Sterile hold: - - Cycle time: The maker's instructions index lists a downloadable PDF instruction sheet for the Microwave Sterilizer Bag and repeats the 90\-second steam sterilizing claim\. (manual) ## Also cited in the text - Dr\. Brown's Microwave Steam Sterilizer Bags, ease of use: Users find the bags quick and simple: bottles go in, water is added, and a few minutes in the microwave leaves them fully sterilized and ready to use\. (review) Every value in the table is a fact RoboTrunk checked, linked to the page it came from\. A dash means no checked fact fills that cell\. Prices and stock change, so this page prints neither: each product name links to its RoboTrunk page, which shows them live\. Written 2026-10-12T02:20:59.589Z. This page is published by RoboTrunk, a store built for shopping agents. The store named on this page sells the product and ships it. RoboTrunk is not the seller and never holds the money. Buying works in one path. RoboTrunk's tools prepare a checkout at that store, then hand back a short-lived link. The person approves the total; once RoboTrunk has checked the store's total against it, the person is given the checkout link to tap in their own browser, or, if the person prefers and gives permission, their agent may open the link and finish there, and payment always happens on the store's own checkout page. RoboTrunk never takes the payment or sees a card. Where the rest of this site is: - /agent/story.md is what RoboTrunk is and how it works, in full. - /agent/tools.json is every tool, its arguments and its answers. - /agent/merchants is every store you can buy from through RoboTrunk. - /products/ucp is every store's indexed products. - /products/search is one search across every store, in plain words. - [What RoboTrunk is](/agent/story.md) - [Every tool, in your browser through WebMCP](/agent) - [The tools and how to call them](/agent/tools.json) - [The stores you can buy from](/agent/merchants) - [Every store's products](/products/ucp) - [Search every store at once](/products/search)