1. Pre-weigh all ingredients.
2. Combine water, whey protein isolate, antifoaming agent and mix with a high-speed mixer for 5 minutes.
3. Allow to hydrate for 30 minutes with minimum agitation.
4. Gradually add in lemon flavouring, Manuka honey, sucralose, salt, citric acid, sodium citrate and mix for 20 minutes at low speed until completely dissolved.
5. Cool down the mixture to 5°C.
6. For a 320 ml beverage, weigh out 128 g of protein mixture into the can and add in 192 g of carbonated water.
7. Ensure pH to be between 3.0 – 3.1.
8. Seam the cans with a can seamer.
9. Transfer the cans to a hot water bath maintained at ~75°C. Hold the cans for at least 30 minutes and the core temperature should reach ≥72°C.
10. Place cans in an iced-water bath and cool down to ambient temperature.

(Note: Lowering the temperature of mixture before adding carbonated water will improve CO2 gas retention in the beverage.)