The RoboBrew is designed for brewing 30L batches, with a total capacity of slightly higher. Here we give you the run-down of its total dimensions – a useful set of numbers to have handy if you’re planning modifications.

Boiler measurements

• 300mm diameter
• 475mm internal height
• Ball valve 50mm from base

This gives the boiler a total capacity of about 33.5L, near enough to the 35L capacity advertised on the machine. This gives us two basic figures to help measure out liquid volumes:

1cm = 0.706L

1L = 1.41cm

Dead Space

The ball valve is located 50mm from the base of the boiler, leaving approximately 3.5 litres of dead space.

The ‘MAX’ line

The ‘MAX’ line is found 42cm from the base; the volume at this point is 29.6L.

Malt pipe measurements

The malt pipe is a simple single-piece pot with a perforated base and carry handle.

• 247mm diameter
• 445mm external height (excluding legs)
• Perforated base recessed 9mm from bottom edge of malt pipe
• 25mm legs

This gives the malt pipe a total capacity of about 21.3L. The recommendation given by Keg King is to use a maximum of 8kg of grain.

The malt pipe’s 25mm legs are attached to the perforated base, giving a total of 16mm clearance between the bottom edge of the malt pipe and the floor of the boiler.