United Kingdom
Butcher's rusk
To the British butcher rusk is a dry biscuit broken into particles, sorted by particle size and sold to butchers and others for use as a food additive in sausage manufacture. Though originally made from stale bread, now called "Bread-rusk", a yeast-free variety called simply "Rusk" is now more commonly used.
Various rusk particle sizes are used in the food industry, where uses include:
A carrier for flavours, colours and seasonings
A binding agent in hamburgers, sausages, stuffings, pies, and other compound meat products.
As an ingredient for dried stuffing mixes.
Farley's Rusks
In the United Kingdom, Farley's Rusks are a dry biscuit dating from the 1880s but manufactured by Heinz since 1994. They are usually given to infants, soaked in milk and mashed up. They have a cult following among university students.
In 2006 there was a short lived scare when it was found that some Farley's Rusks contained traces of the weedkiller chlorpropham. The affected products were recalled and the contamination was traced to a batch of flour used during the manufacturing process. The level of contamination was not high enough to be considered a health risk.
I need to get back on that shit.
) and it isn't until next week 
