How to Clean a Glass Baby Bottle

Rinse the bottle immediately with warm water after you've fed your baby. This way, you can prevent the milk or formula from drying and caking on the glass, which creates a nasty smell and makes cleaning more difficult. Also rinse the nipple.

Use your bottle brush, warm water and mild dish soap to clean out the baby bottle before you load it into the dishwasher. Remove any spots of dried milk. If you have several bottles to wash at once, run some water into a large bowl and add some soap, enough to make the water sudsy. Fully submerse the bottles in the water and then clean and rinse them individually.
You can also use this method to clean glass baby bottles if you do not have a dishwasher. Simply use the bowl, warm water, soap and your bottle brush to thoroughly clean each bottle. If washing by hand, be sure to rinse away soap residue before drying.

Place the baby bottles, as well as any nipples rings and caps, in your dishwasher-safe rack. This will help keep the pieces together during the wash cycle. It's best to use the top rack of your dishwasher when washing glass baby bottles.

Place the glass baby bottles in a drying rack if your dishwasher does not sufficiently dry them. Of course, if you're washing the bottles by hand, you must place them in a drying rack after they've been properly cleaned. It is preferable to have a separate place for baby bottles on your countertop. Keep them away from areas you frequently use to prepare food or where they can be easily reached by other children in the household.

Sterilize glass bottles, along with caps and nipples, before feeding by placing them in a pot of boiling water for five minutes. Brand new glass bottles should be sterilized before their first use. It's best to check with your baby's physician to determine when it's appropriate to stop sterilizing bottles.