My LHBS found a few old packages of DME that were forgotten in a cubboard or something and gave them to me.
They're of uncertain vintage (age measured in years, I'd guess) and have hardened into 'bricks'.
Are these usable? He wasn't sure, and suggested trying to disolve them in water.
They're of uncertain vintage (age measured in years, I'd guess) and have hardened into 'bricks'.
Are these usable? He wasn't sure, and suggested trying to disolve them in water.