Question: Do I need to clean all the machines in our shop to prevent the spread of COVID-19?

Answer passage (source: CDC):
page_title: Frequently Asked Questions
section_headers: Cleaning and Disinfection
Is cleaning alone effective against the virus that causes COVID-19?
section_content: Cleaning does not kill germs, but by removing them, it lowers their numbers
and the risk of spreading infection. If a surface may have gotten the virus on
it from a person with or suspected to have COVID-19, the surface should be
cleaned and disinfected. Disinfecting kills germs on surfaces.

Reviewer feedback on this answer:
Answer references any "surface" that needs to be cleaned which could also include "machines" or anything else that could be touched by a sick person. It is a broad answer but one that could apply to this specific query logically.
This response is really just defining cleaning and disinfecting and makes no mention of cleaning of machines that's being asked about in the question. Misses the mark

Reviewer ratings:
Acceptable
Bad

Answer passage (source: CDC):
page_title: General Business Frequently Asked Questions
section_headers: Cleaning and Disinfection in the Workplace
How do I clean and disinfect machinery or equipment?
section_content: Current evidence, though still preliminary, suggests that SARS-CoV-2, the
virus that causes COVID-19, may remain viable for hours to days on surfaces
made from a variety of materials. It may be possible that a person can get
COVID-19 by touching a surface or object that has the virus on it and then
touching their own mouth, nose, or possibly their eyes, but this is not
thought to be the main way the virus spreads.
If the machinery or equipment in question are not accessible to employees or
have not been in contact with someone infected with COVID-19, they will not
present an exposure hazard.
If machinery or equipment are thought to be contaminated and can be cleaned,
follow the CDC cleaning and disinfection
recommendations. First clean dirty surfaces with soap and water. Second,
disinfect surfaces using products that meet EPA’s criteria for use against
SARS-Cov-2external iconexternal icon and are appropriate
for the surface.
If machinery or equipment are thought to be contaminated and cannot be
cleaned, they can be isolated. Isolate papers or any soft (porous) surfaces
for a minimum of 24 hours before handling. After 24 hours, remove soft
materials from the area and clean the hard (non-porous) surfaces per the
cleaning and disinfection recommendations. Isolate hard (non-porous) surfaces
that cannot be cleaned and
disinfected for a minimum of 7 days before handling.

Reviewer feedback on this answer:
Answer deals with machines and equipment as per the original query as well as including links with disinfection recommendations and which products to use. Additional guidelines for machines that cannot be cleaned and that need to be isolated temporarily are also included so as not to cause harm to equipment if it is cleaned.
This is a great response that talks specifically about cleaning machinery in the time of COVID. There are several useful links relating to appropriate cleaning methods and recommendations which makes it a better answer

Reviewer ratings:
Excellent
Excellent

Answer passage (source: CDC):
page_title: General Business Frequently Asked Questions
section_headers: Cleaning and Disinfection in the Workplace
In addition to cleaning and disinfecting, what can I do to decrease the spread of disease in my workplace?
section_content: Employers can also:

Provide tissues and no-touch disposal receptacles.
Provide soap and water in the workplace. If soap and water are not readily available, use alcohol-based hand sanitizer that contains at least 60% alcohol. If hands are visibly dirty, soap and water should be chosen over hand sanitizer.
Place hand sanitizer in multiple locations to encourage good hand hygiene practices.
Place posters that encourage staying home when sick, the importance of hand hygiene, and coughing and sneezing etiquette at the entrance to your workplace and in other workplace areas where employees are likely to see them.
Discourage handshaking


Reviewer feedback on this answer:
Refers to what people as individuals in a business can do to keep from spreading the virus to each other but does not make any mention of disinfecting equipment within a business.
This talks mostly about how to prevent transmission of the disease between people like hand washing but the question is asking about cleaning machines and this makes no mention of that

Reviewer ratings:
Bad
Could be Improved