Astrophotographers also care about quantum efficiency and often shoot at higher ISOs. Astrophotographers use cooled sensors for a different reason. Long exposur

Astrophotographers also care about quantum efficiency and often shoot at higher ISOs. Astrophotographers use cooled sensors for a different reason. Long exposures build up heat, and heat causes noise, which is why you need to cool overclocked CPUs too. Thermal noise is not relevant for food photography. Input referred read noise will dominate here 100% of the time, unless you're taking pictures of things lit so dark that you can't see them yourself.