Yes a half gallon of baby Bella mushrooms.
Took about 2.5 pounds of fresh mushrooms no crushing and approximately 3 tablespoons of salt.
If this is successful I'll make an English style brown sauce or ketchup out of them.
Airlock not in picture.

For those that care to participate, the mushrooms are into high gear pumping out co2 in less than about 4 hours at 68 degrees F..