Instead of waiting for a mushroom porn photo of a giant clump of Oyster mushrooms, here is an update. These are at the fast growth stage, and get larger overnight. My estimate is that they grew a quarter to half inch last night.
The King Blue Oysters are actually a hybrid mushroom, bred to combine the cap texture of the Blue Oyster with the size and tender stem of the King. Another perk is that they have the storage length of the King, which is rare for an Oyster mushroom.
The substrate here is just coffee grounds and filters, but we only use the unbleached (brown) filters. This has proven to be so effective that we are going to try another Oyster species soon, and drink a lot of coffee.
Time to look for some good mushroom pasta recipes. I’m thinking linguine in a mushroom garlic cream sauce.