I've done something that may help.

I've got one of those events about a power failure and I chose to get rid of all the food I had in the fridge.

When my fridge got empty, I bought the 4 types of organic groceries and from that moment on I'm just buying organics.

They sent me lots of mails, but none complaining about the food.

I don't know if it has something to do with they liking organics most.