It's starch...
Starch is start for the most part. The only thing I'm not crazy about with these is the fact that it's a giant heavy can with a teeny tiny top. One of mine I had for a week, the can fell of the ironing board and landed on the nozzle and shattered the whole thing so it because completely worthless and I had to throw it away. Wish they were in smaller cans.
Rating: 4 stars