the generation did a funny

I haven't played this game so my first thought is that I was looking at Loss.

Maybe you are lucky and the rations are upgraded!

You can think about using a Potion of Levitation or 2 Stone of Blink (get by alchemizing 1 Scroll of Teleportation into 2 runestones). Other option would be to alchemize Telekinetic Grab Spell (Put Thrown Weapons into Liquid Metal and any scroll with any stone into Arcane Catalyst. Combine these twos to get 6x Telekinetic Grab.

Does fire destroy rations?

It doesn't destroy, say, chargrilled meat, so I assume that it doesn't destroy rations.

If not, the problem is just tripping the trap without being hurt, and you can do that by taking off your armor or weapon or something and throwing it at the trap from a distance to trigger it.

So to sum up solutions

Swiftthistle seed to basically freeze time, run in and grab it before the effects wear out

Stone of disarming to remove the traps

Potion of levitation to go over the traps

Stone of blink to blink onto it, if you have enough health then you only need one after you pick up the ration

Timekeepers hourglass to do the same as swiftthistle

Ethereal chains to move to it

Reclaim trap item to remove one of the traps