I have just bought a solid oak dining room table from oakfurnitureland. I waxed it on arrival. Lovely wooden table but as with all their products there is a groove (5mm wide and 5mm deep) running about 12cm in from the edge of the table. The groove gets filled with loads of food gunk which sticks and is difficult to remove. Any suggestions of ways to fill the groove and make the table-top smooth? I like the wood and would rather not use a tablecloth. I also want something that I can remove if required so it doesn't void the warranty. Thanks in advance