I cut up sweet potatoes and potatoes, and put them in their own tupper ware, and cut up onions in their own tupper ware as well. Originally, I prepped them to cook that same night, but ate out instead. So I completely forgot to put them in the fridge to use today. There's some condensation on the tupper ware's of both containers. Opened the containers, and nothing smelled "off" albeit the onion container was extra onion-y while the sweet potato/potato container didn't smell like anything, maybe just slightly "sweet". The temperature of my kitchen was a NYC spring room temperature, though not sure what the exact number is.