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I'm looking to add quite a lot of adjuncts, so will need the maximum enzyme content for conversion.

I've read in a couple of places that the enzyme amylase requires calcium as a co-factor, in order to remain stable at high temperatures. Do you know if this is true? And does the specific type of calcium matter? (I have Calcium Sulphate.)

I've never used this starch-conversion test before and am about to buy some iodine. Does this have to be a special brewers formula of iodine, or will any type do? EBay sells the medical type. Thanks

I'm using Muntons Spraymalt Light. I want to add 20% flaked maize to my brew. However I'll need barley malt enzymes to convert the maize starch. Is DME dead? Also, what's the difference between diastatic malt powder and DME? From the definitions I've read they seem to be the same thing. Thanks

After years of making beer with extract, I'm thinking of trying an All Grain recipe. I don't have room for any specialist equipment so I'll be trying Brew in a Bag on my stove. As I understand it (please correct me on this if I'm wrong) once I've sprouted my barley I need to kiln or bake it...

I know every recipe will be different, but, in general, how long do you wait before adding more malt or sugar? I tend to make high alcohol beers, which are very active at first, then quieten down to a gentler fermentation after a week. I usually bump up then, when the brew is less dense but...

Does the wort become more acidic as it ferments ? Should I measure and adjust it with precipitated chalk or citric acid as it ferments ? What should the PH be after, say, 1 week ? (it's for an 8% ale.)

Any tips welcome about speeding up fermentation of beer? I'm using 90% spray-malt, 9% white sugar and 1% honey. I've added Youngs Yeast Nutrient, Yeast-Vit for vits and minerals, and dead yeast hulls. Any more ideas ?

If I were to put 100g of pure white sugar into 1 lt of water, with some alcohol-resistant yeast (eg Champagne yeast), how many mililitres of pure alcohol would be produced when all of the sugar had been converted ? Is there a table somewhere which displays this ? Thanks.