Now that Russians are further away from Kiev hopefully the lights are going to stay on.

I wonder if you could use a UV light to disinfect bread and other food. I think they actually use it in industrial settings.

https://www.violetdefense.com/blog/2018/9/21/5-ways-that-uv-light-can-help-with-food-safety

https://food.ndtv.com/food-drinks/ultraviolet-light-can-kill-pathogens-in-fruit-1201785