Wooden Serving Board

It's early to write this but as M&S no longer allow all customers to review products whenever they want, I didn't want to miss the window of opportunity (I quote: "The main reason customers may stop receiving emails to review a product is if they haven't replied to previous emails which invited them to leave a review about a product, as it can cause the system to stop sending those emails out to them). I love the look, size and design of these boards. Unfortunately, when I gave them a quick rinse before first use, they stained the dish sponge, the water and the tea towel a really disgusting grey/brown. As the colour is given as 'natural', I can only assume they've been stained with something, and as they're deemed 'food safe', I'd really like to know what is causing all that discolouration. I asked M&S about this six days ago, and am waiting on tenterhooks for the "kitchen items technologist" to reply.

Happy with my purchase. High quality and finish. Highly recommended.