Day 1 – Combine Base: Pour 2 cups filtered water into the jar, add 3 tbsp grated ginger, 3 tbsp sugar, 3 tbsp lemon juice, and optional spices. Stir for 30 seconds until the sugar dissolves.

Cover: Drape cheesecloth over the jar and secure with a rubber band. Place the jar on the counter at room temperature (68–75 °F), out of direct sunlight.

Day 2 – First Feeding: Stir vigorously for 30 seconds to aerate, then add 1 tbsp grated ginger and 1 tbsp sugar. Stir to dissolve and re-cover.

Days 3 & 4 – Continue Feedings: Each morning, stir vigorously, add 1 tbsp grated ginger and 1 tbsp sugar, stir well, and cover again. Bubbles and a light film should appear.

Day 5 – Final Feed & Taste: Stir, add the fourth 1 tbsp ginger and 1 tbsp sugar, then taste a small spoonful diluted in water. It should be effervescent, spicy, and slightly sweet. If flat, ferment 1–2 more days, repeating daily feeding.

Strain: Place a fine-mesh strainer over a bowl and pour the mixture through, gently pressing the solids to extract liquid without forcing sediment.

Bottle: Transfer the strained liquid to clean glass bottles with tight-sealing lids. Label with the date and refrigerate immediately to slow fermentation.

Serve: For a soda, mix 1–2 tbsp ginger bug with 8 oz chilled sparkling water; stir gently and enjoy immediately. Use the same ratio as a cocktail mixer or add to teas once cooled below 100 °F.