530ml vs 700ml — Carbonation, Thermal Mass & Behavioural Engineering 🥤🔥🧊 Two bottles sit on the kitchen worktop in Staffordshire. Same stainless steel. Same insulation.Same lid. Same DNA. But one is 32.1% bigger . That 170ml difference doesn’t look dramatic. It is. And once you understand why, you’ll never look at drinkware the same way again. 📏 The Cold, Hard Maths (No Marketing. Just Physics.) Official capacities: 530ml 700ml Difference: 700 − 530 = 170ml Percentage inc