Wool is a natural fibre that must receive special care in order to stay in the best condition possible. When your wool sweater is stained with wine it's best to respond quickly before the wine soaks too far into the wool fibres. Gentle removal techniques and supplies are best when removing a wine stain, or any other stain, from wool, as too much agitation or scrubbing can stretch out and damage the fibres of your sweater.
Lay your wool sweater on a flat surface. Press paper towels into the wool to wick out the wine stain. Dispose of soiled paper towels and continue to soak up the spilt wine until no more wine transfers to the towels.
Cover the remaining wine stain with table salt. Leave the table salt on the wool for 20 minutes so it can draw out more of the wine from the fibres. Brush the salt off your sweater or shake it off outside.
Mix one part white vinegar to two parts water in a bucket. Wet a sponge with the diluted vinegar solution and squeeze out the excess liquid. Sponge the remaining wine stain on your wool sweater with the vinegar-soaked sponge.
Fill your empty bucket with cool water and add a couple capfuls of gentle hand-washing detergent made for wool garments. Soak your wool sweater in the soap solution for 30 minutes before gently hand-washing it to remove any remaining wine stain.
Rinse your sweater in cool water until the water runs clear. Lay the sweater down on a towel and roll the towel up to draw out water. Repeat this several times until the sweater is merely damp; lay your sweater on a dry towel to finish drying.
Flush a wine stain with water immediately to wash out the stain. Soak only the stained portion of your wool sweater. Sponge stubborn wine stains with rubbing alcohol to lift the stain.