A Baker's Couche is a professional-grade 100% flax linen cloth used during bread proofing, especially for baguettes. It supports the dough, maintaining its shape while absorbing excess moisture.
The linen's wicking property prevents sticking and contributes to a chewy, thin, crunchy crust.
 
To use it, lightly flour the couche, create wavy creases to hold the dough, and let it rise. 
 
Remember not to wash the couche; air dry and store it rolled up.