"Saltpeter?"
Mo Ruyue asked someone to find some saltpeter. With her current status, this was still very convenient. In a short while, they would get saltpeter from the county. Mo Ruyue instructed Su Luo to make it himself. This way, he might be able to remember the steps better and hand it over to the Eagle Guards.
"Big brother, you have to remember that the ice made from saltpeter can't be eaten directly. The water can't be drunk either. It has to be frozen through a basin before it can be used for food."
This was the best way to maintain hygiene.
It was meant to be used on seafood. Seafood had to be eaten. To be safe, a little trouble was inevitable.
When Su Luo personally followed the steps Mo Ruyue had taught her and made a basin of clean and edible ice, she was shocked!
This way, they wouldn't have to worry about the seafood dying halfway. They would basically be able to catch as much as they could!