5. Onions
Whenever you cut an onion, before that it should be left in the heat of the room. Because when onions cool down, they become mushy and unattractive. Whenever you chop an onion, then it is very important to keep it in the fridge because the onion dries up, so you can carefully keep it in a plastic baggie, or you can keep it in place of the vegetable, but more vegetables have been kept.
It is told on the next page whether walnuts can be kept in the fridge or not.