How to Clean a Glass Thermos
Although a glass thermos works well to keep hot liquids hot and cold liquids cold, you must care for the thermos carefully to ensure you do not break it. Clean a glass thermos by hand after every use and allow it to air dry completely before putting it away. Does this Spark an idea?
Things You'll Need
- Dishwashing detergent
- Dishcloth
- Bottle brush
- Dishtowel
- Baking soda
- Drying rack
Instructions
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1
Rinse the glass thermos with warm water to remove as much food or drink residue as possible.
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2
Squirt a small amount of dishwashing detergent onto the bottle brush and add water to make it sudsy. Insert the bottle brush into the glass thermos and scrub the inside.
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3
Place a drop of dishwashing detergent onto the dishcloth and use it to wash the outside of the glass thermos.
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4
Fill the glass thermos with warm water and rinse both the outside and the inside thoroughly.
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5
Remove stubborn stains by filling the glass thermos with hot water. Add 1 tsp. of baking soda and allow the glass thermos to soak for at least eight hours. Pour out the water and scrub the inside of the thermos with the bottle brush to remove the stains. Rinse the glass thermos well with warm water.
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6
Invert the glass thermos onto the drying rack and allow it to drip-dry completely.
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Tips & Warnings
Do not immerse the glass thermos in water because water can seep into the cracks of the thermos.
Never wash a glass thermos in the dishwasher.
Handle the thermos very carefully to avoid breaking the glass interior of the thermos. If the glass cracks, you must discard the thermos. Never use a cracked glass thermos.
