Never assume...

I found some mx dyes in the back of the studio fridge (not a food fridge -- don't worry) and I assumed that since they've been there for several months, they would be weak. I wanted some lighter colored fabric for DSP, so I stuffed a couple BIG jars of with fabric and layers of dyes and set them on top of the water heater for a few days.
Well, the fabric is nice enough, but it's all too dark for screen printing. It's actually much darker than in the photos. I guess the dye was still good...