How To Sterilise Glass Bottles In Oven

Rinse them well but dont dry them.

How to sterilise glass bottles in oven. When sterilizing glassware such as bottles petri dishes and test tubes dry heat is required and this is carried out in a hot air oven. There are 2 main options for sterilising glass bottles. Close the oven door and sterilize the jars for a minimum of 20 minutes.

Be warned youll need oven gloves and heat-proof containers if you use this method. Instead place upside-down on a rack which fits inside an oven tray. There is an easy way to sterilize them in the oven.

The ideal temperature of the oven needs to reach is at least 160 C and the contents need to be regulated at this heat for 45 to 60 minutes. Wash the jars thoroughly in hot soapy water rinse then dry. Youll also need to check your bottles will be able to withstand high temperatures without cracking.

The best place to do dry heat sterilization is in your oven. Some people sterlise their glass. Arrange the glass jars on the oven shelf making sure the jars are not touching each other.

Using thick oven mitts remove each jar from the oven as needed onto a heatproof mat or heat pad making sure you fill while the jam or preserve is as hot as the jar. Do not use rusty or damaged jar lids because they will not produce a tight seal. To sterilize glassware in the oven preheat the oven to 130C 266F.

Place warm jars standing upright and metal caps upside down in an oven pre-heated to 110-120 o C for about 15 minutes to ensure they are completely dry and to keep them hot. Place a double layer of newspaper on a baking sheet and place the glassware and the lids on top of it arranging it so the jars dont touch each other. Close the oven door and sterilize the jars for a minimum of 20 minutes.