Plastic Wrap / Al-foil v's Flexsil-lid
Plastic Wrap or Al-foil need to be wrapped 5 times to be as effective as Flexsil-lid on each pan.
These figures show the amount required in length. Add up the cost!
1/9 - wrap approx. 400mm (x 5 = 2000mm for a reasonable seal - that's twice one way and thrice the other)
1/6 - same as above
1/4 - 620mm (x 5 = 3100mm)
1/3 - 700mm (x 5 = 3500mm)
1/2 - approximately the same as the 1/3
1/1 - 1020 (x 5 = 5100)