We left some grapefruit in the fridge a little too long. Apparently there was mold on the bottom of the fruit and as I was throwing them out, I accidentally dropped one and a I saw a puff of mold rise and fall in the fridge. I dont think I properly cleaned it up and I was hesitant to get too close too fast as I didnt want to breath the spores (maybe they were harmless but I could smell them, which meant I was breathing some of them in anyway). We noticed the food and water from the fridge began to take on a citrus-ee taste.

We recently took everything out of the freezer and fridge and cleaned it with bleach. I also replaced the water filter as the water dispenser and ice were tasting the most like citrus.
This worked for about a week or so but last night we began tasting that flavor in the water again.

Any suggestions?