Original YUCK! Looking much like crushed ice or clear Jell-O, Original YUCK! makes between 25-60 gallons per pound of un-hydrated material! IT REALLY IS LIKE PLAYING IN JELL-O! Non-toxic, biodegradable, and 99.8 % water when hydrated. So go ahead and "mess" things up! Allow 4-6 hours minimum to hydrate up to 75% growth and up to 24 hours for 100% growth. How does it feel? Looks Like Dry: Rock Salt Looks Like Hydrated: Clear Jell-O/Crushed Ice Grows Fast: 200-500 x size in 4-24 hours Slime Factor: Great Growth Ratio/Gallon: 25-60 Gal per lb..