A graduate scientist turned automotive engineer, currently running a small shop and growing plants on Skye: turning a sheep field into a food forest.
Pearl Sutton wrote:Feed bags are made of plastic mesh, they can be sewn. Chip bags are made of Mylar, which is why they are shiny inside and they don't sew, they rip really really well if you perforate them. Not sewable.
) to make the crisps last longer. Poiythene is pretty innocuous as plastics go - just a Carbon and Hydrogen chain, so unless there are additives to the plastic (like colours and demoulding agents...) any fumes given off are not worse than wood smoke. However, you wouldn't want to breathe that in either! In the website linked in the video that organises making survival blankets for people sleeping rough (crisp packet project) they suggest if you're making a whole blanket to use a special facemask, or do it in a very well ventilated area. The individual packets apparently iron together with hardly any fumes, but they then laminate them into a stronger material for the survival bags, with an extra layer of polythene either side and that may generate more fumes thus a mask/ventilation is wise.


Thekla McDaniels wrote:There’s more to learn, and there’s a thread that tells it all, but being an old woman and not tech savvy, I will leave it for someone else to direct you there.
Chance Lunceford wrote:What would also be cool is a class teaching how to make those things with the fruit you just picked.