Blanching & shocking

How to tell it is going right

• A large volume at a hard rolling boil, and enough of it that adding the food barely interrupts it; a pot that goes quiet has started stewing rather than blanching.
• Timed rather than watched, and short. This is an interruption in the cooking of something, not the cooking of it.
• The ice bath was made and standing beside the pot BEFORE anything went into the water, not started once the timer went off.
• It went straight into the ice water, fully submerged, and stayed until cold at the centre: a piece still warm inside is still cooking, and the arrest has not happened yet.
• Drained and dried afterwards rather than left sitting in water, so it does not carry that water into whatever it meets next.

Where it goes wrong The ice bath was not ready, so the food sat draining in a colander while its own residual heat carried on cooking it. By the time it cooled it was a stage past where it was pulled, and exact arrest is the entire reason for blanching rather than simply boiling.