|Days to Rot||10||10|
The Blue Mushroom is an interesting item in that the benefits it provides change almost completely based on whether it's cooked. Uncooked, it provides a boost to health and hunger while damaging sanity but when cooked it will damage health, provide no nourishment and increase sanity. Because of this, it is best to carry both some cooked and uncooked mushrooms. When eaten properly together, they can provide a net boost to all three stats.
Like all Mushrooms, you need to collect it at a certain time of day. Blue Mushrooms must either be collected at night or from Mushtrees in a cave. During the day, they retreat into the ground and can't be picked. After being picked, they will regrow after it rains. They can also be dug up using a Shovel which doubles your yield but doesn't allow the Mushroom to regrow in that spot.