''Ketchup isn't thixotropic. With thixotropic liquids, viscosity changes over time. http://en.wikipedia.org/wiki/Shear_thinning''
Will have to write to heinz to remonstrate for their misinformation!
Heinz in "lying in their advertising" shocker. You'll be telling me next they don't have 57 varieties.
ketchup also has a yield point. Get a bottle, turn it upside down and it won't flow out.
Shake vigorously (shear it) and it will get less viscous and flow out. HOWEVER; even if you stop shaking it will continue to flow once started, even once the shear is removed.
I work with Jon Tickle
I'm hungry now!
*reaches for the Bird's custard powder. MMMMM
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