Plutonium in pressure cookers

[auroraglacialis]

This is what happens if a state or company working with nuclear material has to save money: They store plutonium rods in regular kitchen pressure cookers. Here is the link (in French) to the offerte: tenderise.eu - Avis de marché F-Is-sur-Tille: Appareils ménagers de cuisson 2013/S 125-214244
They want to buy 4000 pressure cookers for the labs that produce the plutonium for the nuclear missiles in france. According to official press release, rods of 10 cm length and 2 cm diameter will be stacked into the cookers in a box and then stored on site. The cookers are not supposed to leave the area.
Still I find this very worrying. I imaged they have special hardened radiation resistant vessels for this purpose in a high tech lab - but this sounds like in a public university research lab where people have to be inventive to do some research and use cheap materials. But that is not for such critical stuff. How many tons of plutonium can one store in 4000 cookers of I believe 17 liters each?

This is why I think nuclear research that deals with large amounts of radiactivity has to be very much limited. Such stuff is only for the ones that want to spend a lot of money on it and in these times no state is that rich and no corporation wants to spend money on anything if they dont have to anyways.