Sense Sonnet - Tickler

Toast Prelim

Making of toast is not an art,
But is a science based on fact.
Of course a piece of bread to start,
Fourteen millimeters exact
In thickness from a pale loaf, please,
Cooled to thirty seven point four
Right on fahrenheit degrees -
And do take care, no less, no more.
Thus, ruler and thermometer
Are necessary tools to be
In the toast making kit for sure,
So as to proceed correctly.

Don't have these tools, enough's been said.
True toast cannot be only bread.