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Make double-brewed tea. Add flavor to food. Care for your garden. Disguise bad odors.

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Some people use the term 'double-brewed' tea to refer to concentrated tea that has been steeped twice, but the phrase can also be used to mean tea that has been brewed with reused teabags. Simply leave the teabags in the water for 2-3 minutes longer than usual to account for the loss of effectiveness.  You should not reuse teabags in this manner more than once or twice. If you are not planning on reusing them right away, put them in the refrigerator in enough water to keep them completely wet. Storing used teabags at room temperature or in dry conditions can cause mold growth and invite unwanted bacteria. Old teabags can be reused quite easily during cooking. Experimenting with old teabags in the kitchen may impart color and flavor to foods. For instance, adding chamomile or jasmine tea to rice can infuse it with a delicate fragrance, and Chai or cinnamon tea can boost the flavors in a simple bowl of oatmeal.  Place old teabags in the water you are using to boil pasta or rice for added flavor. Add old teabags to the water you have just used to boil eggs for added flavor and color. Add tea to your meat smoker for tea-infused smoked meats. Mixing teabags into soil has a great number of beneficial effects, including increasing nitrogen and acidity levels, attracting good bacteria, lowering the pH level of the soil, and giving earthworms something good to eat. You can also add old teabags to your compost pile, as long as they are not made of plastic and you remove any metal staples first. Because teabags are absorbent and aromatic, they can be used to mitigate offensive smells. Peppermint and cinnamon flavored teas in particular have a very strong and pleasant aromas.  Place used teabags in the trashcan and refrigerator to dispel bad odors. Scrub your hands with used teabags to remove unpleasant scents like those of garlic or fish. Turn old teabags into air fresheners by waiting until they are completely dry and adding a couple of drops of essential oil, like lavender or peppermint.