Andrew Schloss

“22 grams cinchona bark 4 grams dried hawthorn berries 8 grams dried sumac berries 2 grams cassia buds 3 cloves 1 small (2-inch) cinnamon stick, preferably Ceylon cinnamon 1 star anise 12 grams dried bitter orange peel 4 grams blackberry leaf 51⁄4 cups spring water 50 grams citric acid 2 teaspoons sea salt 1 stalk lemongrass, cut into 1⁄2-inch sections Finely grated zest and juice of 2 limes Finely grated zest and juice of 1 lemon 1⁄2 cup agave syrup Combine the cinchona bark, hawthorn berries, sumac berries, cassia buds, cloves, cinnamon, and star anise in a spice mill or mortar and pestle and crush into a coarse powder. Add the orange peel and blackberry leaf, divide the mixture among three large tea baskets or tea bags, and put a few pie weights in each. Bring the water to a boil in a large stainless-steel saucepan. Add the tea baskets, citric acid, and salt. Let simmer for 5 minutes. Add the lemongrass, cover partially, and let simmer 15 minutes longer. Add the lime and lemon zests and juices and let simmer, uncovered, until the liquid is reduced by a little less than half, making about 3 cups. Remove from the heat and remove the tea balls. Pour the agave syrup into a bowl. Set a fine-mesh strainer over the bowl and strain the tonic into the syrup. You will need to work in batches and to dump out the strainer after each pour. If the tonic is cloudy, strain again. Pour into a clean bottle and seal. Store in the refrigerator for up to 1 year.”
― Andrew Schloss, Homemade Soda: 200 Recipes for Making & Using Fruit Sodas & Fizzy Juices, Sparkling Waters, Root Beers & Cola Brews, Herbal & Healing Waters, Sparkling ... & Floats, & Other Carbonated Concoctions

“Birch bark lends a mild wintergreen flavor to brewed sodas. Birch beer, flavored with sassafras and birch, is a classic American brew. Birch bark is usually sold in homebrew stores. Bitter Orange (Bergamot) s highly aromatic, and its dried peel is an essential part of cola flavor. The dried peel and its extract are usually available in spice shops, or any store with a good spice selection. They can be pricey. Burdock root s a traditional ingredient in American root beers. It has a mild sweet flavor similar to that of artichoke. Dried burdock root is available in most Asian groceries and homebrew stores. Cinnamon has several species, but they all fall into two types. Ceylon cinnamon is thin and mild, with a faint fragrance of allspice. Southeast Asian cinnamon, also called cassia, is both stronger and more common. The best grade comes from Vietnam and is sold as Saigon cinnamon. Use it in sticks, rather than ground. The sticks can be found in most grocery stores. Ginger, a common soda ingredient, is very aromatic, at once spicy and cooling. It is widely available fresh in the produce section of grocery stores, and it can be found whole and dried in most spice shops. Lemongrass, a perennial herb from central Asia, contains high levels of citral, the pungent aromatic component of lemon oil. It yields a rich lemon flavor without the acid of lemon juice, which can disrupt the fermentation of yeasted sodas. Lemon zest is similar in flavor and can be substituted. Lemongrass is available in most Asian markets and in the produce section of well-stocked grocery stores. Licorice root provides the well-known strong and sweet flavor of black licorice candy. Dried licorice root is sold in natural food stores and homebrew stores. Anise seed and dried star anise are suitable substitutes. Sarsaparilla s similar in flavor to sassafras, but a little milder. Many plants go by the name sarsaparilla. Southern-clime sarsaparilla (Smilax spp.) is the traditional root-beer flavoring. Most of the supply we get in North America comes from Mexico; it’s commonly sold in homebrew stores. Wild sarsaparilla (Aralia spp.) is more common in North America and is sometimes used as a substitute for true sarsaparilla. Small young sarsaparilla roots, known as “root bark” are less pungent and are usually preferred for soda making, although fully mature roots give fine results. Sassafras s the most common flavoring for root beers of all types. Its root bark is very strong and should be used with caution, especially if combined with other flavors. It is easily overpowering. Dried sassafras is available in homebrew stores. Star anise, the dried fruit of an Asian evergreen, tastes like licorice, with hints of clove and cinnamon. The flavor is strong, so use star anise with caution. It is available dried in the spice section of most grocery stores but can be found much more cheaply at Asian markets.”
― Andrew Schloss, Homemade Soda: 200 Recipes for Making & Using Fruit Sodas & Fizzy Juices, Sparkling Waters, Root Beers & Cola Brews, Herbal & Healing Waters, Sparkling ... & Floats, & Other Carbonated Concoctions