DR. VonDankenstine
Well-Known Member
Fruit peels can culture mold within hours and you also risk mold with the use of added water to rehydrate--A better choice that works as well as the others posted but prevents mold and bacteria is hygrometer fluid which is composed of distilled water and propylene glycol. You could build the cotton balls as FDD said but just add the HF instead of the water---no mold or bacteria worries.