those blue ones and the pink ones are one and the same. i have lots of those. they should look like round bbs not cracked like those found in packets.
these "blue" and "pink" ones are deep violet when they come "New" and turn to blue, pink and white depending on the amount of moisture that it already absorbed.
the good thing with the colored ones is you can heat them using a non stick pan (easier to roll them around) and they'll turn back to Deep Violet. you can use them again and again. as long as buo sila (bilog, like nerds candy) they will be very efficient.
just don't use your pan for food. i have a dedicated pan for reheating my silica gel.
you can also do the microwave method. pero noon kasi wala kaming microwave. and i wasn't into guitars before but electronics.
you can also create your own "dry box"
get a few of those silica gel, stuff them in a thin sock, place it inside a glad zip lock with your expensive gadget. you can also include a humidity gauge. national bookstore use to sell rulers with those gauges. this is what i did sa mga gadgets na naiwan ko sa pinas,
pag tumataas ang humidity (change in the needle mark) all our maid does is get the sock out, and heat the beads. this beats those thousand peso container being sold in department stores. (except those electrical dehumidifiers na malalaki)
if you can find those tupperwares with rubber seals, it can also function as a dry box but its kinda hard to find them, specially yung mga malalaki...cheaper way is to use ziplocks. and put them in a plastic box
specialty camera stores should have those silica gels. i haven't tried asking along Hidalgo St., Quiapo but they should have those.
In my last trip to the philippines, i was able to buy a few humidity gauges sa camera store. i use them in my make shift dry boxes.
