The Brew Mentor Gift Certificate The Brew Mentor Sale! from $10.00 Denominations $10.00 $25.00 $50.00 $100.00 Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. A gift certificate is a great gift idea for all your brewing needs. Gift Certificates will be automatically sent to your email.