C.P.
Hello S H!
All of the items you mentioned are okay in checked luggage, and your husband can pack them however he likes, like in his toiletry bag or whatever. They don't need to be stored in clear ziploc bags.
But for his carry-on, which I am sure he will have, the rules will apply and he will need to store any liquid items in a ziploc bag. And liquid items can not be more than 4oz. If he needs to bring contact lens solution with him on the plane, he needs to put some in a container that holds 4oz or less.
He won't be able to go through security with milk or a bottle of water, those items will get dumped if he tries (or forgets like I do sometimes!). He'll have to purchase drinks inside the terminal. He can carry food through security with no problems. But if he has any kind of jarred foods, or fruit cups for example, he should put those in a plastic bag as well.
We travel to Finland with our kids quite a bit, so I'm trying to think of all the things we do. By the way, my husband is taking both of our kids to Finland by himself for SIX MONTHS in July. They will spend time with his family out there.
Anyway...for a checked suitcase there are no rules for packing toiletries. Only for carry-ons. As long as he has everything in 4oz or less containers and puts them in a plastic bag, he should be just fine.
-Char
