I’m also confused and I’m planning a trip and I’m back to wondering what is the best way to sterilize.

I’ve tried washing in hot soapy water and air drying after every use and then sterilizing in a vinegar/water solution twice a week. Then I heard we should sterilize after every use.

So I bought a baby bottle sterilizer because I read that was adequate (I still wash in hot soapy water or soak in vinegar before using it). Then I read somewhere that this isn’t good enough.

I’ve tried the microwaving in those plastic bags when I’ve been away and had access to a microwave - still soaking in hot water or in the vinegar solution before putting them in the microwave. Then I read this isn’t good enough either.

I always use water from an RO when at home or distilled/demineralized bottled water if away from home with all of these cleaning options to avoid build up of minerals.

I haven’t tried boiling yet, in either a stainless steel pot or an instant pot, and I haven’t tried putting everything in the dishwasher.

I like the simpler the better and sometimes I wonder if that isn’t just carrying a small stainless steel pot on carry on luggage.

I’m happy for any and all suggestions!