Equipment Calculators

Whether you are brewing on a kitchen stove in a one-bed flat or running a full three-vessel system in the garage, getting your equipment sizing right saves money and avoids messy boilovers. The kettle size calculator accounts for headspace above your pre-boil volume, which is critical when brewing vigorous boils on UK gas hobs. Pair it with the boil off calculator to understand your system's evaporation rate — typically 10-15% per hour for most homebrew setups, though this varies with kettle diameter and heat source.

UK homebrewers often start with 23-litre batch kits and graduate to all-grain systems producing 20-25 litres. The mash tun calculator helps you choose the right vessel, whether you are converting an Igloo cool box or investing in a stainless steel mash tun from a UK supplier. Fermenter sizing is equally important — the fermenter size calculator ensures you leave enough headspace for krausen, which can be aggressive with characterful British yeast strains like those from Lallemand or Mangrove Jack's.

Chilling wort quickly after the boil is essential for clear beer and reduced infection risk. In the UK, tap water temperatures range from about 6°C in winter to 18°C in summer, which significantly affects cooling performance. Use the immersion chiller calculator or heat exchanger calculator to estimate cooling times for your setup. The keg volume calculator is also handy for tracking how much remains in a Corny keg by simply weighing it — perfect for planning your next brew day.