Why this sauce earns its place
A table sauce bottle earns its place by being obvious. Yellow is the kitchen shorthand for mustard, so this bottle identifies itself across a busy room: a customer reaching for it does not stop to read anything, and a server clearing down knows what they are carrying. On a table laid with two or three bottles, that colour does more work than any label.
At 340 ml it holds enough to see a table or a section of the pass through service without someone walking a refill out mid-covers, and it still sits beside cruets and cutlery without taking over the setting. Plastic is what makes it work at that volume — a bottle handled by the public goes over sooner or later, and a plastic one bounces where glass takes a table out of service and puts a sweep-up in the middle of a dining room.
Bottles like this live in rotation: filled from a catering-size container before doors, wiped between covers, stripped and washed at the end of the night. The yellow body keeps its identity through all of it, so a bottle coming back from the wash goes back to the right station without anyone opening it to check.
