Sodium Metabisulphate or Metabisulfite?

Discussion in 'General Beer Discussion' started by AnPeter90, Feb 26, 2017.

  1. AnPeter90

    AnPeter90 New Member

    Just started reading up on low oxygen brewing techniques. Thought I would give Sodium Metabisulfate a go.

    Got on the internet and tried to buy Sodium Metabisulfate. It seems like when I do a Google search for it Google tries to tell me I should be looking for Sodium Metabisulfite. I don’t have much of a chemistry background (only “Blockhead Chemistry” in College many years ago.) If I am understanding things correctly the Metabisulfate is missing one oxygen atom it picks up from the beer. Anyway. it seems about the only place it was available was in India and I had to buy it by the ton. Just a bit more than I need! I have two local home brew suppliers where I live. I sort of figured what the answer would be but I thought I would go on the hunt locally just to see what they could tell me. The first shop didn’t know what I was talking about and at the second shop the guy that owns it has been in business for many years seemed to know exactly what I was looking for but didn’t have it. He sold me 2 oz of Potassium Metabisulfide (only $1.75) and said it would work the same.

    My question is; Will it work the same to scavenge oxygen from beer and if not where to get Sodium Metabisulfate?

  2. MartinL

    MartinL New Member

    Metabisulfite is what you want. I use Potassium Metabisulfite (K-meta) but people also use the sodium version, too. Both are OK. I prefer K-meta since it doesn't add any sodium to the brew water.