1 In the first example (in cell C1), the value argument, A1/B1 returns the value 0.5. This is not an error and so this value is returned by the Iferror function.  In the second example (in cell C2), the value argument, A2/B2 returns the DIV/0! error.
One of the best mushrooms for color is Phaeolus schweinitzii, the dyerâs polypore. The best time to pick and dry this mushroom is when the outer growing edge is bright yellow, with yellow-green pores underneath. When cooked with alum-mordanted wool and a 1:1 ratio, the color will be a bright yellow or gold.
The young yellow fruiting bodies will dye very much like Phaeolus schweinitzii, that is, yellow with alum, and dark green with iron. The older black pieces will dye a weak poor color with any mordant. Most important with Inonotus hispidus is to raise the pH to 8-9 within the first 10 minutes of cooking the mushroom.