Allowing time for me to hunt out my Iron Age knife
and to find the camera, and upload the photos.....about 20 minutes work = a little more than 150 ml, and since my 'creation' is stable enough for multiple journeys I think that the challenge could be met easily in half an hour.
Iron Age knife......cut off a suitable stick.
This is a branch of Gean. It takes me about 2minutes to cut through that with this little knife. I trimmed one end rounded so that it didn't cut my hand, and the other into a flattened spear point.
That's my digging stick.
These cracks in the soil tell me that the soil is clay rich
Digging with my digging stick breaks out the sticky lumps.
I had water to hand (there's a permanent puddle at this bit, but I could easily have just taken the lumps of clay to the water source)
The clay is kneaded to remove lumps, to create a 'dough', and from that I make a basic thumbpot.
Then I rolled out some more and moulded on coils.
I couldn't go very much higher because the clay is very, very malleable at this stage.
However, my little bowl is stable enough to be lifted and laid.
These are the rosettes of docken leaves, but I could have used anything from tufts of grass or rushes, or even large dandelions.
I used the digging stick to dig them out with enough of the taproot attached to keep the whole thing together.
Then I used them to 'cup' the bendy clay bowl......and then took it for a walk
Result 150ml+ of potable water
cheers,
Toddy