Generally you would use coloured chopping boards if you wish to serve and prepare meats.
You can determine if chicken is cooked by checking its color, texture, and juices. Cooked chicken should have no pink color, be firm to the touch, and have clear juices running out.
You can determine if chicken is fully cooked by checking its color, texture, and juices. Fully cooked chicken should have no pink color, the juices should run clear, and the meat should be firm and not rubbery.
That's to prevent cross-contamination. If you use a cutting board for raw chicken, then use the same cutting board (without appropriate cleaning and sanitizing), the bacteria from the raw chicken can contaminate the cooked chicken and cause illness in those who eat it.
Put it close to a light and if the egg is a dark color than its close to ready but if its still in a light color stage (meaning the color looks similar to the light you are using) then its not ready.
Cross contamination
The food was cooked beautifully in the restaurant. This is the sentence using the word cooked.
Assuming you mean a cooked hamburger, try mixing a bit of black clay with white clay, making a grayish color. That is the closest you can get to the "real thing" since cooked hamburgers aren't brown, nor are they pink like raw hamburger is.
it is made for chopping so that you don't destroy your table. you can easily change it to a new one but buying a new table every second month is a little bit too much, don't you think?
Steak cooked using the sous vide method should be cooked for 1 to 4 hours, depending on the desired level of doneness.
It depends what you will be using the cutting board for.
Chicken should be cooked at a temperature of 165F (74C) when using the sous vide method.
Using the same board for both cooked and uncooked foods could lead to cross contamination of the cooked food by pathogenic bacteria that might have been on the uncooked food. That contamination could lead to foodborne illnesses. At one time, the cutting boards only needed to be washed, rinsed, sanitized and air-dried before switching from raw to cooked. For a number of years now, industry has progressed to color coding cutting boards and other utensils to designate use for specific food categories like cooked meats, raw chicken, raw meat, raw poultry, raw fish, and vegetables. Those are part of a multi-barrier approach toward preventing cross contamination which could cause foodborne illnesses. The utensils still require proper washing, sanitizing and drying between uses.