>>2591349Constantly wet means it's fighting an infection. From the look I'd say it's bacterial, I don't see yeast.
4 weeks is way too slow. You should have 20-30% within a week and full no more than a week after that and the shake, for most mushrooms. I think you have a lot of bacteria breeding in there which is preventing the mycelium from growing. I would toss and start over.
A pressure cooker is essential in home mycology. You can get a 24qt presto for around $120 in the US. I've heard PCs that go up to 15psi are harder to find in Europe.
