For some reason they seal the tins so only NASA can get into it
over the sink - gloves on (rubber not woolen
) - you can prise up the edge till there is enough to peel back or you can punture the top in a a V and push in, and then you can shake out - or after the V just drop in the water and stir around
now you haven't said what grips they are ? some dye (just about) and some won't at all