PrimeWhip Food-Grade Cream Charger 640G Watermelon

One 640g cylinder does the work of more than 85 traditional 8g cartridges, which is the point of buying at this size: fewer swaps mid-service and a fraction of the packaging to clear afterwards. The watermelon fill is aimed at summer plates and long drinks, where a light melon note carries through the cream without dominating it. PrimeWhip states 99.95% nitrous oxide purity and a leak-proof body. Connect it to your siphon with a pressure regulator.

Sizing the 640g against the rest of the range

PrimeWhip's cylinders scale from 320g up to 3000g, and 640g sits at the second step: exactly twice the fill of the smallest cylinder and roughly a third the weight of the 2000g XL. That makes it the size most sites move to once a 320g cylinder is being swapped more than once a week, but before volume justifies holding a two-kilo body on site.

For a watermelon-led summer menu running across an eight-to-twelve-week season, that middle size tends to mean two or three cylinder changes across the run rather than a weekly one.

Fitment and compatibility

As a cylinder rather than a loose 8g cartridge, this does not thread into a charger holder. It runs through a pressure regulator fitted to the cylinder neck, feeding a standard whipping siphon. That regulator is a one-off purchase that carries over to every other PrimeWhip cylinder size, so moving up to 2000g or 3000g later does not mean buying new hardware.

Storage and handling

Store the cylinder upright in a cool, dry area away from direct heat and away from hobs or other cooking equipment, as with any pressurised gas container. It ships sealed and is used once rather than refilled, so there is no step between delivery and connecting it beyond keeping it secure.