I normally brew using a kit and 1kg of brewing sugar (this is know as dextrose?), was just wondering what u can do to get a better taste.
Ive heard people say they use malt extract or honey. Would this produce a better beer? If so what type of measurements would you use in place of the sugar? i.e 1kg of malt to replace 1kg of sugar?
If you are using prehopped kits (where you add sugar and water only) then there are a couple of things that you can do do improve how they turn out.
One of these is to use something other than the sugar (as you have mentioned) you can sub in DME (Dried malt extract), pound for pound (from what the instructions say.) This changes the type of fermentables that you have. Dextrose ferments out about 95%, which can mean that you get thinner beers at the end of the process. Because the extract doesn't ferment out as much you get more body.
Also... you can change your process... if you are just following kit directions, you are not getting the most potential out of the kit. I would recommend leaving it for at least 3 weeks before bottling, and then leaving it in bottles 3-5 weeks (min) before drinking.
If you still aren't happy with your beer, then you may want to look at another method of brewing... that is to say try doing extract, or all grain. You can still buy kits for these, or you can put things together yourself. This lets you control the hops and the types of grains that you use, rather than relying on the concentrate that is in the pre-hopped kit.
AG means you can use some of the malts that are not available in extract form, as well as malts that can't be steeped (frankly I don't know anything about this, as I still have lots to learn).
There are lots of steps you can take to make better beer, and at some point to will find your comfort level on the involvement you want to have in the process.
Hope this helps!