Step two: Fill bag with nitrogen

Or any inert gas of your choice. Or I suppose you could use any gas at all. Do it. Fill that bad boy with hydrogen and oxygen. What can go wrong?

Then you jam your arms through the inverted gloves and bodge your way through what should be an incredibly fiddly and precise but of science, but when every movement compresses the air so that you feel increased forces the further in you reach, and the bag is not quite transparent, meaning you can't see if the pipette has anything in it at all, it's quite tricky.

Then let it sit for at least sixteen hours. The little cardboard box which formerly held lemsip knock offs is to protect my reaction from stray UV.