The manufacturing process of spinning wool can occasionally lead to knots in the wool, whether for full size or miniature knitting. In normal human sized knitting there are many ways to join a new ball of wool into your knitting, however in miniature knitting there is only ONE method that will not show up on the finished piece of work.
The pure new wool we stock comes in 25 metre skeins and we would advise you to wind this into a ball before starting your knitting to ensure a knot-free length. It is best to find out before you start knitting and are forced to join in wool mid way through a row (remember if you have to unpick stitches to go back to the start of the row these will always show up!)
In miniature knitting if you joined the wool with a knot as some people do this will show through the finished knitting as a noticeable lump, especially if it is in the centre of a row. Similarly if you joined the wool into the work by knitting several stitches using both the new ball of wool and the old simultaneously, this would again show up in the finished item as a lumpy area.
The best way is to join the wool at the start of a row. As a rough guide to check if you have enough wool to complete a row (before you start knitting it), make sure you have enough wool to run across all the stitches on the needle three times or more. If you have less wool than this you will need to join the new ball in at the start of the next row.
To join in the wool: leaving a fairly long end (6-inches/15 cm long) start knitting the row with the new ball of wool, leave both the new end and the old end of the wool hanging at the side of the work. If the first stitch of the previous row seems a little loose then gently pull the wool of the old ball until the stitch is tight enough, without being gathered up. Continue working with the new ball of wool. When the item is finished the ends of the wool at the join can be sewn into the seams, or along the edge of the item. The ends may be darned in gently on the reverse, but keep them as near the edge as possible to avoid unsightly lumps in the finished work.
However the best method of all is to avoid joins in the work altogether by making sure you will have sufficient wool to complete the piece you are knitting before you start. As a rough guide: when knitting a mans sweater in 1/12th scale you will normally be able to get either a front or a back and one sleeve from a 25m ball of wool, you will not usually have enough wool to work both the front and the back from the same ball of wool.