The source develops a nonalcoholic cold-brew drink using strawberry sweetness and fresh mint. Its central aim is to keep coffee apparent after adding the other ingredients, rather than letting it disappear into a generic fruit drink.
A stronger cold-brew base provides one way to account for dilution from ice and sparkling water. Strawberry syrup adds sweetness as well as fruit character, so its quantity needs to be balanced against both the coffee and the final water volume. Fresh mint contributes another aromatic layer.
The retained text does not include a complete set of measured proportions. Treat it as a drink concept and use a recorded formula when developing your version. Add sparkling components gently and compare the finished drink after mixing. The mojito association describes an inspiration; this source version is specifically presented as a mocktail.
The conversation
A good question can make a better brew.