Re: Small problem with my new KM..
Water will make it easier to get in but once it dries you'll still have difficulty getting it out.
You can sand the gasket down to fit or use a lubricant that doesn't dry out as mentioned above. If you pack bowls with your hands, instead of washing the juices off afterwards, use the excess juice on your hands as lube for the gasket. Glycerol is used in many products as a lubricant.