You can make this recipe in batches. Try varying the number of flowers or water in the recipe to get a weaker or more concentrated solution. You can cool the dye and substitute it for water in a biomaterial recipe. You could also store it in a clean jar or glass for up to 10 days at room temperature. You can keep this in the fridge if you want to keep it longer. You can even freeze the dye once it is at room temperature.