Packing the Kit Back Down: What Re-Bags Cleanly and What Doesn’t

Fourteen bags on a Sunday night, eleven of them worth keeping, three of them a wet mess that nobody wants to touch. The difference between the two groups is not age or brand. It is how the material was handled in the last hour of the build and what it was sitting on when the lights went off.

Re-bagging is the least glamorous part of this trade and the one that decides next season’s material cost. Get it right and 40 percent of a build comes back. Get it wrong and everything goes in a skip.

What comes back cleanly

Material that was built on a liner, kept at working depth, and never had dry powder added on top comes back in a condition you can rehydrate. It will have a crust on the exposed face and a soft core, and the crust is fine: break it up, bag it, and it rehydrates in the same way as new material with a slightly longer soak.

Material from a shallow scatter is the easiest of all, because it dries evenly and can be bagged dry after a day on a rack. Anything that went down at 3 cm or less and stayed out of foot traffic is effectively recoverable in full.

What does not

Three categories go to waste and there is no point pretending otherwise. Material that has been walked through, because it contains grit and fibre that will not come out and will show as dark specks in the next build. Material that has been mixed with glitter or dye, because it will contaminate the next batch. And material that sat in standing water for days, because it has absorbed whatever was in the water and will smell when it is rehydrated. Nobody wants to be the person who opens that bag in a client car park.

Mixed-batch material is the one people argue about. A bag that is half glittered and half plain cannot be separated at any sensible cost. Bag it separately or lose it, and label it clearly so nobody tips it into a plain batch in a hurry next November.

The Sunday-night routine

Start before the strike, not after. An hour before the end, stop topping up and let the surface begin to dry. At the strike, lift whole sections rather than sweeping, because a section lifted with a shovel keeps its structure and a swept pile turns into sludge.

Spread what you are keeping on racks or on a clean liner, in a layer no more than 10 cm thick, and leave it overnight with air moving. Bag it the next morning when the surface has stopped being tacky. Bagging wet material on the Sunday night is the single most common reason a reusable batch arrives at the next job smelling of the inside of a bin.

Bags, labels and storage

Use the bags the material came in where possible, or heavy-duty woven bags with a liner. Fill to about 70 percent so the bag can be handled, tie with a cable tie rather than a knot, and label with the date, the batch, and one word describing the condition: clean, glittered, or damp.

Store off the floor, on a pallet, away from a wall, in a space that does not cycle through freezing. A bag that freezes and thaws repeatedly takes up moisture at the seams and will be a solid block by spring.

Weigh the keep pile before it goes into store. Eleven bags that weigh 40 kg less than the material that went out tells you something was left behind on the floor, and it is easier to work out what at 9 a.m. on Monday than in the middle of the next build. Two minutes with a bathroom scale is enough.

The re-bagging checklist and the condition labels we use are in the polymer snow product range documentation. Print the labels on adhesive stock and keep a roll in every van.