Proofing is the final step in making dough before baking, when you allow the dough to rise via the fermentation of yeast. Since dough rises best in warm and humid environments, the Butler Bakery Proofers with humidification allow you to set the perfect temperature and humidity levels to get consistent, repeatable results. Constructed in quality stainless steel, you can choose between two models that can accommodate 16 & 32 trays respectively (trays not supplied with the machines).