We implore you to stop storing avocados in water

The trendy idea of submerging avocados in water to prevent them from browning overlooks a crucial concern: Avocado skins can actually harbor bacteria. According to the FDA, Listeria monocytogenes was detected in nearly 18% of avocados tested, and Salmonella in 0.74%. Even more worrying, soaking avocados in water can allow Listeria monocytogenes to infiltrate the flesh under the skin, even if you wash the avocado afterward.

“Bacteria like listeria and salmonella are living creatures. They need the right temperature, food and, most importantly, water to grow,” said Matt Regusci, principal compliance manager at New Era Partners, at Everyday Health.

These bacteria are known to cause a range of unpleasant gastrointestinal problems. Listeria can cause fever, muscle aches, nausea and diarrhea, while Salmonella can cause fever, diarrhea and abdominal cramps. Both can develop into serious and even life-threatening illnesses. Those most at risk are people with weakened immune systems, pregnant women, newborns and the elderly.