Step 8: Final words and a few advices
Try to avoid elaborate shapes: details will not show up
The toaster makes the difference: the larger the heating resistance the more uniform the drawing will be; try smaller bread slices or larger prongs (and toaster)
When you are tired of a shape, just remove it and do another one.
A final one: you don't need a toaster at all: just lay the Aluminum shapes on a pan and put your bread slices on it or, even better, use a press toaster.
You can also print a slice of meat.
Buon appetito !