To prepare a good tea, it is recommended to use the low mineralised water. This will not only affects the taste, but also improves the effectiveness of the herbal tea. You can use low mineralised bottled water like Mount Roucous or buy a Brita filter to filter the tap water.
To prepare an infusion dry plants – mostly leaves, flowers or seeds – are poured in boiling water. Normally a tablespoon is used for 200ml to 250ml of water (a large teamug). When the water boils, it is poured onto the plants and allowed to infuse for 5 to 10 minutes before filtering. It is advisable to cover the tea so that the essential oils don’t evaporate (10% to 20% loss). You can buy special filter who make the filtering proces easier. Generally it is advised to drink 2-3 mugs a day, and this for one to three weeks. For longer treatments, ask your doctor or herbalist.
A decoction is generally used to prepare the toughest herbal parts, such as roots or bark. This will require boiling the plant parts. Generally one tablespoon is used for 200ml to 250ml of water (a large mug). Simmer for 8-10 minutes before filtering.
Some plants lose their properties if heated. In this case water is used at room temperature and plants are soaked for 7 to 12 hours.
*This are only general rules. Preparing a tea varies with the herbs that are used. Ask your doctor or herbalist.