Question: How do fast food restaurants store their ketchup?
About the article "Ketchup", section "Later innovations".

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Fort Mohave has two large grocery stores, "Smith's Food and Drug" and "Safeway".
It also has a "CVS Pharmacy" and an "ACE Hardware Store".
Restaurants include "Red Dragon Chinese Cuisine", "Bonanza Cafe", "Casa Serrano Mexican Food", an ice cream parlor, and several fast food franchises.
Residents of Fort Mohave do the majority of their shopping and dining in Bullhead City, which is considered the shopping hub of the tri-state area. 
The item generally consists of discernible vegetable or fruit pieces in a sauce, although the sauce is subordinate in character to the vegetable or fruit pieces.
It might consist of a single type of vegetable or fruit, or a combination of these.
These fruits or vegetables might be coarsely or finely chopped, but generally a relish is not as smooth as a sauce-type condiment, such as ketchup.
The overall taste sensation might be sweet or savory, hot or mild, but it is always a strong flavor that complements or adds to the primary food item with which it is served.
Relish probably came about from the need to preserve vegetables in the winter.
In India (where the preparation originated from), this generally includes either vegetables, herbs or fruits.
In the United States, the most common commercially available relishes are made from pickled cucumbers and are known in the food trade as pickle relishes.
Two variants of this are hamburger relish (pickle relish in a ketchup base or sauce) and hotdog relish (pickle relish in a mustard base or sauce).
Other readily available commercial relishes in the United States include corn (maize) relish.
Heinz, Vlasic, and Claussen are well known in the United States as producers of pickles and relishes.
One of the best known pickle manufacturers in the UK is Branston.
A notable relish is the Gentleman's Relish, which was invented in 1828 by Ben Elvin and contains spiced anchovy.
It is traditionally spread sparingly atop unsalted butter on toast.
Within North America, relish is much more commonly used in Canada and Alaska than in the contiguous United States on food items such as hamburgers or hot dogs.
American-based fast food chains do not normally put relish on hamburgers even at their locations in Canada and Alaska, whereas Canadian fast food chains (such as Harvey's) do have it as a regular option just like ketchup, mustard, etc.
American-based fast food chains use regular pickles to a greater extent.
If it is offered as an option at Canadian locations of American-based fast food restaurants (e.g.
Wendy's), it is generally offered in individually portioned packets rather than added atop the burger.
Restaurants, fast food franchises and sports stadiums in Canada prominently offer relish as a topping on hamburgers and hot dogs along with ketchup and mustard, whereas this is less common in most of the United States (although there is variation within the United States.)
The company started in 1947 as a small meat company to supply products to Los Angeles area restaurants and hotels.
In the 1950s it became a primary supplier to McDonald's Corporation to provide the fast food restaurant chain with ingredients.
Chef Gold was launched in 2000 to produce liquid products such as ketchup and mustard and cooked meat products for a variety of customers.
In the same year, GSF formed a self-serving subsidiary called Centralized Leasing Company (CLC) to provide GSF with leasing services.
In 2002 Signature Services was launched to offer customized services such as store painting, lot striping, power washing and landscaping.
In partnership with The Arthur Wells Group in St. Louis; GSF formed CFM Logistics to help clients with their freight distribution needs.GSF entered the baked goods business by forming a joint venture with Bryan, Texas-based Mid South Bakery.
The baked products are distributed to customers in the Southeastern United States. 
In 2012, Hein began to host his own television show, "Fast Food Mania", on Destination America.
In his show, Hein expresses his love of fast food by discussing the history of various restaurants, along with how their food is prepared. 
Restaurant media is an emerging form of retail media advertising used in cafeterias, fast food and family restaurants and diners and that reaches consumers while they dine.
For decades most fast food restaurant chains employed various in-store advertising media such as billboards, posters and paper tray covers and these media are rapidly being replaced by digital signage.
The concept of delivering multimedia content to customers of fast food restaurants and food courts emerged in early 1990s and became increasingly popular in recent years.
Burger King and Tim Hortons were among the first fast food restaurant chains to deploy digital signage projects involving plasma displays, LCD panels, self-service interactive kiosks in their restaurants