How to handle refrigerator sharing for individual Airbnb rooms?

[Bruce P.]

Hi, so my friend is going to rent out their individual room(s) in their 3 bedroom house in Los Angeles, specifically the Moorpark/Westlake Village area in Ventura county. They are going to try and target business travelers / professionals. This is their first time renting, so they don't want to spend more than necessary until they have some more guest feedback(s), but they do want to provide a minimum viable level of comfort and experience that would lead to good reviews. Do you have suggestions on how to manage the one home refrigerator in terms of restricting access to more expensive food/beverages that are just for them and their family?

Should they explain up front that some beverages are off-limits but provide a list of food/beverage(s) that the guests are allowed to help themselves to?  Should they try and put a mini-refrigerator in each bedroom instead? Just looking for a good system that minimizes their time involved as they have a full-time W2 job.

Right now, they're planning to provide the things you would find at a typical 4 star hotel - complementary coffee via Keurig and complementary breakfast (cereal and possibly eggs if the guests are willing to cook that themselves).