does it matter what size crochet hook you use for any size yarn?
Polystyrene, by far, for the same thickness.
I think that the polystyrene is a better insulator than cardboard coz it is more denser than it .
you do no longer say what variety of insulation you like, electric, sound or thermali will make a wager at thermalAluminium foil is worse than ineffective, being a steel it has extreme thermal conductivity and helps the warmth to fleePlastic towels are greater advantageous yet via a techniques the main suitable of your 3 are paper towelsThe insulating potential of fabrics in particular outcomes from there being air trapped of their shape - air is an incredible insulatorUse the paper towels scrunched up yet no longer too tightly as this traps much greater airsupplies like accelerated polystyrene are large insulators as they're no longer something yet hundreds of thousands of little air bubbles surrounded a microscopically skinny pores and skin of the plastic.
Yes, you want to match the hook size to the yarn size in order to get a useable fabricThe smaller the hook, the thinner the yarn should be, the larger the hook the heavier the yarn, or use of multiple yarnsYou can use a thin yarn on a larger hook for a very open, lacey fabric, but a thick yarn on a tiny hook will result in a very dense and stiff fabricSteel hooks in sizes 0 to 16 and smaller are intended for thread work, and the threads themselves range down as far as sewing thread sizeB - D hooks generally are used on fingering (baby or sock) weight yarns, D- F are for sport or DK weight yarns, F - I for worsted to Aran weights, and H - K for bulky weight or doubled DK or worsted yarnsBeyond K you are looking at super bulky or several strands of thinner yarn used togetherWhile there is some overlap of needle and yarn sizes, these groupings work well together.
