Samuel McHarry, The Practical Distiller
“ Put your mashing stick into your hogshead and stir it round two or three times gently, then lift it out and give it a gentle stroke on the edge of your hogshead—if you perceive the batter or musky part fall off your stick, and there remains the heart of the grain on your mashing stick, like grains of timothy seed, then be assured that it is sufficiently scalded, if not too much, this hint will suffice to the new beginner, but experience and observation will enable the most correct judgment. ”
